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Finally, HD 4870X2 comes..
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Nice indeed. So looks like the 4850 clock rumor can be dispelled, that is if those reported clocks are indeed stock ( which I'd think they would be ) That all black reference design is dead sexy :cool:
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ooh wow, it'll be going head to head with the 280 in price (and probably power consumption)
maybe it'll push nvidia to release the gtx 285
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WOW! Get your motor running....
Edit: I wonder if the currently available waterblocks from Danger Den and EK Waterblocks for the 3870X2 will fit this thing. The board layout and placement of the memory chips looks very similar.
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Reminds me of the giant black monlith at the begining of 2001: A Space Odyssey. Does anyone have an idea as to how long this card is?
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Quote:
Originally Posted by
waver_01
sexxxxy
isnt it just a piece of hardware, How, What, is it, are you...?!?!?!
nvm, im to afraid to ask now......
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looks nice, if they had the backplates also in black it'd be even nicer :) Looking forward to some numbers :')
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wow... Thats one nice card...
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looks good cant wait to see Benchmarks!
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Quote:
Originally Posted by
71 (Bryan)
isnt it just a piece of hardware, How, What, is it, are you...?!?!?!
nvm, im to afraid to ask now......
not only women can be sexy, you know, if you're a nerd of course :D
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Dual THAT on a X48 chipset (or X58 soon) and things are going to get kinda crazy :)
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That is one sexy looking card :)
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no those boobs on your avatar are sexy, this thing will be hot (yes horrible pun intended:p:)
What happened to the heatpipe though? I'm almost 100% sure there used to be a heatpipe running along the outside of the card
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If this thing performs like it should and they have fixed the micro stuttering then this is definitly my next card.
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If it's longer than the 3870x2 won't fit in my case ...
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It's not longer than 3870X2, apparently. Actually the new component and board design would be somewhat shorter, but that won't match the cooler length, so it's kept at full size for that matter:
http://img366.imageshack.us/img366/3...0vsr700lt1.jpg
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this is my next card, only if it whoops the gtx 280........the only thing i dont like about ATi is their drivers, i was thinking of going back to nvidia just because of how good and fast they release drivers.
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You of all people should know its gonna since 4850's beat the gtx280 and you've got them.
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Quote:
Originally Posted by
Caveman787
You of all people should know its gonna since 4850's beat the gtx280 and you've got them.
Say what?
I cant wait to see some in depth reviews. Especially regarding any microstuttering.
Loving the competition.
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:shocked::slobber: ..........nice
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Oh wow, that looks sweet! If it thoroughly beats the 4870 at 1920x1200 then I may consider trading my 4870 for this. Especially if the price is reasonable. ;x
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Crossfire 4850's are a slight bitter faster then a single gtx280.
4870's are 20-25% faster then 4850's.
You draw the conclusions.
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Quote:
Originally Posted by
Caveman787
Crossfire 4850's are a slight bitter faster then a single gtx280.
4870's are 20-25% faster then 4850's.
You draw the conclusions.
My cards have been modded and clocked to 725mhz core and 2200mhz mem, so they are about 5-10% slower than the 4870.
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Quote:
Originally Posted by
Jowy Atreides
ooh wow, it'll be going head to head with the 280 in price (and probably power consumption)
maybe it'll push nvidia to release the gtx 285
You mean the GTX287.34bc?
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Quote:
Originally Posted by
GAR
the only thing i dont like about ATi is their drivers, i was thinking of going back to nvidia just because of how good and fast they release drivers.
thats cause nvidia has to release them every other week. ati actually seems to test their drivers while nvidia releases beta after beta never getting it right...
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that thing will look good with a nickel ek waterblock- black & silver
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Quote:
Originally Posted by
squilliam
You mean the GTX287.34bc?
you forgot to add plus :D
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Quote:
Originally Posted by
GAR
this is my next card, only if it whoops the gtx 280........the only thing i dont like about ATi is their drivers, i was thinking of going back to nvidia just because of how good and fast they release drivers.
I dunno, I've rarely had issues with ATI drivers, while I've heard of nvidia botching drivers regularly. Maybe that's changed? I remember it took them forever to get the vista drivers working right...
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Quote:
Originally Posted by
SparkyJJO
I dunno, I've rarely had issues with ATI drivers, while I've heard of nvidia botching drivers regularly. Maybe that's changed? I remember it took them forever to get the vista drivers working right...
Ive never had an issue with nvidia drivers. I have problems with GRID not working with catalyst 8.6 drivers, hotfix didnt work either and is slower than 8.6, so far drivers dont seem polished, but 8.7 should be better from what i hear, we will see.....i love the performance of these cards tho, great buy for me as i got them for only $300 usd out the door.
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Lol - it's another 3870X2 pretty much. Wonder if it'll flash :lol:
Be nice if the blocks fit the same - That way if I get sent a 4870X2 instead of a 3870X2 then I don't need to complain :D
~Bex
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Quote:
Originally Posted by
GAR
Ive never had an issue with nvidia drivers. I have problems with GRID not working with catalyst 8.6 drivers, hotfix didnt work either and is slower than 8.6, so far drivers dont seem polished, but 8.7 should be better from what i hear, we will see.....i love the performance of these cards tho, great buy for me as i got them for only $300 usd out the door.
A friend of mine has 4850 and used both Cat 8.6 and the 8.6 hotfix and hasn't had any problems with Grid. What kind of problem are you talking about?
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Quote:
Originally Posted by
GAR
Ive never had an issue with nvidia drivers. I have problems with GRID not working with catalyst 8.6 drivers, hotfix didnt work either and is slower than 8.6, so far drivers dont seem polished, but 8.7 should be better from what i hear, we will see.....i love the performance of these cards tho, great buy for me as i got them for only $300 usd out the door.
well the 8.6 arent officially for 4800 series so i cant see why your complaining so much, maybe you should wait for the 8.7 before you pass judgment on the quality of ATI drivers. Anyone who remembers the pain and suffering early vista users went through with the pitiful Nvidia drivers (meeeee!!!) knows that ati makes quality polished drivers.
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Quote:
Originally Posted by
RCG_Bex
Lol - it's another 3870X2 pretty much. Wonder if it'll flash :lol:
Be nice if the blocks fit the same - That way if I get sent a 4870X2 instead of a 3870X2 then I don't need to complain :D
~Bex
welll considering that the ram is oriented differently i dont think you can count of blocks fitting unless you have a mill to correct the differences, also PWM on 4870x2 is significantly larger
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*sigh* This is true... shame really.... or else it'd be really nice and winrar for me :P
~Bex
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Quote:
Originally Posted by
GAR
. I have problems with GRID not working with catalyst 8.6 drivers, hotfix didnt work either.
How GRID not working ???
i tested Grid and work OK
regards
-
Quote:
Originally Posted by
vmsein
Edit: I wonder if the currently available waterblocks from Danger Den and EK Waterblocks for the 3870X2 will fit this thing. The board layout and placement of the memory chips looks very similar.
Sure looks like it will fit, and if it doesn't then perhaps a very minor mod will make it fit.
I sure like the all black theme, can't wait to get my hands on one. I wonder if these cards will scale well in CF-X as the 3870x2 didn't as I understand.
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that price is an OK to me, cant wait for the benchmarks :)
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Quote:
Originally Posted by
Eastcoasthandle
A friend of mine has 4850 and used both Cat 8.6 and the 8.6 hotfix and hasn't had any problems with Grid. What kind of problem are you talking about?
yeah I have a 4850 myself, GREAT card for the money, if you look at his posts he generally favors nvidia so I wouldn't worry about it
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this will be replacing my 8800gt :)
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Just wondering, but why are the cards now coming with back plate covers now? Won't full covers like that somewhat interfere with air circulation?
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Quote:
Originally Posted by
PrometheusCon
Just wondering, but why are the cards now coming with back plate covers now? Won't full covers like that somewhat interfere with air circulation?
its for cooling the ram on the backside of the card
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Quote:
Originally Posted by
Anemone
Dual THAT on a X48 chipset (or X58 soon) and things are going to get kinda crazy :)
:clap: ATI
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Quote:
Originally Posted by
Eastcoasthandle
A friend of mine has 4850 and used both Cat 8.6 and the 8.6 hotfix and hasn't had any problems with Grid. What kind of problem are you talking about?
On vista 64, no matter which setting i set, it always goes back to default with medium settings,also tall buildings flicker.
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Quote:
Originally Posted by
SNiiPE_DoGG
well the 8.6 arent officially for 4800 series so i cant see why your complaining so much, maybe you should wait for the 8.7 before you pass judgment on the quality of ATI drivers. Anyone who remembers the pain and suffering early vista users went through with the pitiful Nvidia drivers (meeeee!!!) knows that ati makes quality polished drivers.
before you open your mouth and talk all big, what kind of a company releases a product without official drivers???? im not a fanboy of either company, i like both, which ever gives me more for my money is the company i would go for, when releasing a new product, make sure you have software that can support it, much like creative, good hardware, bad software.
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Quote:
Originally Posted by
AliG
yeah I have a 4850 myself, GREAT card for the money, if you look at his posts he generally favors nvidia so I wouldn't worry about it
I favor nvidia thats why i have 2 ati cards now? :rolleyes:
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Hot, now where can I get 2 of them? :cool:
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hey you're the one that's complaining about issues no one else seems to have not to mention in the 4xxx series and 9900gtx threads you were definitely pro nvidia
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Quote:
Originally Posted by
GAR
On vista 64, no matter which setting i set, it always goes back to default with medium settings,also tall buildings flicker.
I run grid in vista 64 with crossfire 4870's and hotfix 8.6 drivers and the settings hold, but i do get the flickering in the buildings and stuff.
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which is the fastest motherboard chipset to seat this beastly card into?
and does having pci-e 1.0, 1.1, or 2.0 make a difference? Guessing you want 2.0 right?
THANKS!
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Quote:
Originally Posted by
Jaivan
I run grid in vista 64 with crossfire 4870's and hotfix 8.6 drivers and the settings hold, but i do get the flickering in the buildings and stuff.
Hmm.......i wonder what it could be, thanks.
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Quote:
Originally Posted by
GAR
Hmm.......i wonder what it could be, thanks.
something is bogus with the ati installer, i had to reinstall the drivers 3 times until CF finally worked properly with my 3870s :shrug:
i don't know grid but maybe your probllem is caused by a patch or certain ingame settings (earth 2160 had some strange issues with certain graphics settings on my 3870s)
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Quote:
Originally Posted by
fellix_bg
wwo,oh, the chips r' gettin bigger :)..cept the link chip.
is my card rolling off an assembly line yet ? :D
can you diasble one of the gpu's if the drivers dont work properly? :/
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wonder if thats a 1gb or 2gb 4870x2
and dosn't look like the 3870x2 waterblocks will fit
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Quote:
Originally Posted by
GAR
Hmm.......i wonder what it could be, thanks.
Try renaming the Grid.exe to Dirt.exe. I don't have Crossfire myself, but I've read that it fixes the Crossfire problem with Grid.
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Quote:
Originally Posted by
GAR
On vista 64, no matter which setting i set, it always goes back to default with medium settings,also tall buildings flicker.
Grid works 100% fine for me under Vista 64 with the 8.6 hotfix drivers on my highly-overclocked 4870, not sure why you're having issues. Sounds like it might be a crossfire thing.
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Quote:
Originally Posted by
DTU_XaVier
Looks long...
and..you were looking at??.....
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Quote:
Originally Posted by
adamsleath
wwo,oh, the chips r' gettin bigger :)..cept the link chip.
is my card rolling off an assembly line yet ? :D
can you diasble one of the gpu's if the drivers dont work properly? :/
I believe these are no longer crossfire on a single PCB. They actually directly work together on the hardware level so a CF driver issue shouldn't affect one of these cards if you are running a single card. I think that's what I've heard, correct me if I'm wrong.
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Quote:
Originally Posted by
SparkyJJO
I believe these are no longer crossfire on a single PCB. They actually directly work together on the hardware level so a CF driver issue shouldn't affect one of these cards if you are running a single card. I think that's what I've heard, correct me if I'm wrong.
Its still got the PLX chip, and it is still crossfire on a single pcb from what i know.
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no, it isn't. read the previous threads about the x2. Good explanation of how its supposed to work...
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Quote:
Originally Posted by
GAR
Its still got the PLX chip, and it is still crossfire on a single pcb from what i know.
It isn't the same PLX as previously used on the 3870x2. Totally different.
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Quote:
Originally Posted by
GAR
On vista 64, no matter which setting i set, it always goes back to default with medium settings, also tall buildings flicker.
That's a common problem and not directly related to the video card. I've read on their forums the only fix is to:
-save your save game folder to another location
-uninstall the game
-reboot
-defrag hd
-install the game
-install patch 1.1
-play game and input your name, etc
-exit game then install your save game folder
-play Grid
They are already working on another patch for this game to fix other bug related issues as well as add more content.
Quote:
Originally Posted by
AliG
yeah I have a 4850 myself, GREAT card for the money, if you look at his posts he generally favors nvidia so I wouldn't worry about it
Gotcha!
What he is discribing is an issue that some have experienced regardless of the video card used.
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Quote:
Originally Posted by
SparkyJJO
It isn't the same PLX as previously used on the 3870x2. Totally different.
Same concept, better chip is what im guessing.
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Quote:
Originally Posted by
GAR
Same concept, better chip is what im guessing.
No it isn't... trying to find it, someone in one of the other threads said how it worked but I'm not seeing it right now. It was in this thread somewhere:
http://www.xtremesystems.org/forums/...d.php?t=192829
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I can see ATI coming back with a major bang ;).
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Quote:
Originally Posted by
SparkyJJO
Ehm...its a STANDARD PCIe 2.0 48 lanes 12 port switchchip. No magic or anything. And dont think on the 12 port part or shared buffers or whatever. Its just used in this setup as a 3 port chip. The chip is just more dynamic if you wanted 12 x4 lanes etc.
PLX 8648
http://www.plxtech.com/products/expresslane/pex8648.asp
And yes, it is smaller than the previous on 3870X2
http://www.plxtech.com/products/expresslane/pex8548.asp
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Quote:
Originally Posted by
GAR
Ive never had an issue with nvidia drivers. I have problems with GRID not working with catalyst 8.6 drivers, hotfix didnt work either and is slower than 8.6, so far drivers dont seem polished, but 8.7 should be better from what i hear, we will see.....i love the performance of these cards tho, great buy for me as i got them for only $300 usd out the door.
yeah thats the worst thing about these old cards ......ohhh hold on there brand new lol ...jeeez give it a chance....we're just outta the starting blocks fgs:rofl:
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Quote:
Originally Posted by
jaredpace
which is the fastest motherboard chipset to seat this beastly card into?
and does having pci-e 1.0, 1.1, or 2.0 make a difference? Guessing you want 2.0 right?
THANKS!
X48 would be that choice for intel..but a p35/45 will work fine. Best off getting P45 imo, the Biostar T power is a good value and good overclocker, really thinking i might pick one up here in a few weeks myself, just need to get better memory after i craiglist these Gskills, hate having parts laying around. For AMD boards, the MA790FX-DS5 are good boards from what my friend at work tells me.
and no to answer your question, pcie 1.1 will not really be a bottleneck at all right now. I had the same question myself a couple of weeks ago with the sudden splurge of new cards, but sat back and looked at the numbers..it will be a year or so before pcie 1.1 is tapped out
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hopefully visiontek will produce 1 of these as a 4870x2 variant
http://www.overclockersclub.com/revi..._3870_x2/2.htm
gecube did 1 too that looked similar ..kinda shexy
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Quote:
AMD Radeon HD 4870 X2 ready by August
Following the recent launch of the ATI Radeon HD 4850 and 4870 GPUs, AMD plans to introduce the high-end dual-GPU HD 4870 X2 by the end of July, according to sources at graphics card vendors.
Evaluation samples are schedule to be available in mid-July, and
AMD will begin shipping reference design boards with 2GB GDDR5 memory at the end of the month, the sources detailed.
In mid-August, AMD will also begin shipping the 4870 X2 (RV770XT) GPU to partners wishing to design custom cards, the sources added.
HD 4870 X2 graphics cards are expected to be priced around US$499, the sources detailed.
http://www.digitimes.com/mobos/a20080702PD213.html
regards
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Quote:
Originally Posted by
mascaras
regards
$499 FTW :)
That will push the 1GB and 512MB 4870s lower :)
Perkam
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So much great hardware but so lil games worth playing....
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when is far cry 2 out? and how about fallout 3?
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Quote:
Originally Posted by
strange|ife
X48 would be that choice for intel..but a p35/45 will work fine. Best off getting P45 imo, the Biostar T power is a good value and good overclocker, really thinking i might pick one up here in a few weeks myself, just need to get better memory after i craiglist these Gskills, hate having parts laying around. For AMD boards, the MA790FX-DS5 are good boards from what my friend at work tells me.
and no to answer your question, pcie 1.1 will not really be a bottleneck at all right now. I had the same question myself a couple of weeks ago with the sudden splurge of new cards, but sat back and looked at the numbers..it will be a year or so before pcie 1.1 is tapped out
You sure? I'm curious about this too. Sounds like theres massive difference between p45s and x48 boards and they are both 2.0. Granted that crossfire but still how big of a difference would you see? I'm curious cause I love my current mobo I dont want to give it up but if there is a significant difference...
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Quote:
Originally Posted by
RedBull78
So much great hardware but so lil games worth playing....
so true, sad times.
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Quote:
Originally Posted by
RedBull78
So much great hardware but so lil games worth playing....
Yeah, especially when most game coming are console ports with low quality textures.
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Quote:
Originally Posted by
RedBull78
So much great hardware but so lil games worth playing....
we need more "adult" games that keep our hardware busy
:yepp:
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Quote:
Originally Posted by
disruptfam
how about fallout 3?
dont be surprise if the PC version only looks tiny bit better than console version
Fallout 3 Lead: "We're Console Players Now"
http://kotaku.com/387903/fallout-3-l...le-players-now
sure that maybe a joke quote, but its an alarming sign that developers are focusing on making the console (most likely 360 version) 1st, optimized for it, then port it to PC
i really hope they at least include some DX10 features for PC version...
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When it comes to Intel X48 vs Intel P45.
Intel P45 is simply superior to X48 in every single way, besides one.
And that's the limited bandwidth when running multiply cards in Crossfire.
Running 2x cards will be limited to 8x / 8x PCI-Express2.0 bandwidth, and 3-4 cards will be 8x / 8x / 4x / 4x.
On X48 it's like this: 16x / 16x and if running 3-4 cards I think it's like this; 16x / 16x / 8x / 8x PCI-Express2.0.
When it comes to anything else besides that, the Intel P45 is identical or superior.
The only difference of P45 and X48 are:
- P45 got a smaller 55nm chip (X48 got a 90nm)
- P45 got a newer southbridge
- The mentioned Crossfire settings
The major advantages for P45 is the smaller chip, 55nm creates less heat and it's cheaper to produce which makes the P45 better and still cheaper than the X48 boards. Also the new southbridge it's kinda nice, but not ground breaking.
Due to the smaller chip P45 clocks WAY better than the X48, and when it even cost less than X48 barley anyone sees any point in even considering the X48 any more.
The thing is, running 2x HD4870 in 8x / 8x Crossfire don't have any negative impact on the performance WHATSOEVER. 8x PCI-Express2.0 (which equals the same bandwidth as 16x PCI-Express1.1) is more than enough bandwidth to get the maximum of the HD4870 cards.
The only limitation you get with P45 compared with X48 is when running 3-4 cards, as the last cards will only get 4x / 4x, which might, I'm just saying MIGHT be decreasing the performance.
Running 2x HD4870 in 16x / 16x or 8x / 8x PCI-Express2.0 makes no difference whatsoever.
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Quote:
Originally Posted by
RamGuy239
The only difference of P45 and X48 are:
- P45 got a smaller 55nm chip (X48 got a 90nm)
- P45 got a newer southbridge
- The mentioned Crossfire settings
yeah, just curious... why cant they make high end chipset on smaller process...
-
Quote:
Originally Posted by
Philip_J_Fry
yeah, just curious... why cant they make high end chipset on smaller process...
probably manufacturing costs outweigh the sales price
-
Quote:
Originally Posted by
RamGuy239
The only difference of P45 and X48 are:
- P45 got a smaller 55nm chip (X48 got a 90nm)
- P45 got a newer southbridge
- The mentioned Crossfire settings
P45 has 65nm, X48 is 90nm
P45 ICH10R isn't that much different vs ICH9R...
I also thought it was consensus that P45 didnt save power over P35. The HUGE benefit of P45 was 8x + 8x for crossfire on the cheap vs X38/x48
Quote:
Originally Posted by
Philip_J_Fry
yeah, just curious... why cant they make high end chipset on smaller process...
High end chipsets have larger die, which mean more complex. To get better yields, they use a mature process.
One of the main reasons why Intel did a process shrink on this current architecture is for bloomfield. Intel always makes sure to shrink a current process before implementing it on a new platform.
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Quote:
Originally Posted by
AliG
no those boobs on your avatar are sexy, this thing will be hot (yes horrible pun intended:p:)
What happened to the heatpipe though? I'm almost 100% sure there used to be a heatpipe running along the outside of the card
saw that boobie else where, in a fast-moving gif version :eek:
AMD decide to hide heatpipe inside...donknow why they got to different cooler design
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Any idea whether the 4870X2 will beat two 4870s in Crossfire? I am in a dilemma - wait and buy a 4870X2 or buy 2 x 4870s now??? Any input welcome..thanks!
-
Quote:
Originally Posted by
kcnyc
Any idea whether the 4870X2 will beat two 4870s in Crossfire? I am in a dilemma - wait and buy a 4870X2 or buy 2 x 4870s now??? Any input welcome..thanks!
Well to answer your last question first, I would wait for the 4870X2 to be released, for two reasons.
1. The 4870X2 is only 500$ compared to 600$ for two 4870's at the moment
2. By then the 4870's might be lower in price, and they will have custom cooled versions.
Rumors suggest that the 4870X2 will be 15% faster than two 4870's in crossfire, due to better communication from the new "Crossfire Sideport". I have my doubts however, as the power draw for a single 4870 will likely mean that the 4870X2 will have lower clocks.
-
Can anybody link me to trustable reviews of 4870 in crossfire please?
-
Quote:
Originally Posted by
Isaac MM
Can anybody link me to trustable reviews of 4870 in crossfire please?
There are a list of reviews in the "4800 series review" thread. Please browse there.
In any case, Firingsquad has a pretty good review that includes the 4870 Xfire in most cases. I like how it includes 8xAA tests at the end, which is important to me.
http://www.firingsquad.com/hardware/...ce/default.asp
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That's the reason why I hold off till the 4870X2 comes out and go from there. I'm still more like a "single card" person so unless I have to, I might grab another 4870 but if the 4870X2 turns out to beat 4870CF then I'll definitely get it, no more micro stuttering anyone?
And if it's faster than 4870CF then we'll probably see a price cut soon on the 4870, prices war FTW :up:
-
Quote:
Originally Posted by
eric66
you forgot to add plus :D
:up::rofl: lols:rofl:
-
Quote:
Originally Posted by
RamGuy239
When it comes to Intel X48 vs Intel P45.
Intel P45 is simply superior to X48 in every single way, besides one.
And that's the limited bandwidth when running multiply cards in Crossfire.
When it comes to anything else besides that, the Intel P45 is identical or superior.
The only difference of P45 and X48 are:
- P45 got a smaller 55nm chip (X48 got a 90nm)
- P45 got a newer southbridge
- The mentioned Crossfire settings
The major advantages for P45 is the smaller chip, 55nm creates less heat and it's cheaper to produce which makes the P45 better and still cheaper than the X48 boards. Also the new southbridge it's kinda nice, but not ground breaking.
Due to the smaller chip P45 clocks WAY better than the X48, and when it even cost less than X48 barley anyone sees any point in even considering the X48 any more.
Really?!.... Show me P45 bandwith compare to X48!..... What matter's higher FSB speed if you can't match X48 bandwith?!.. Try and make a comparation beetwin high/low chipset bandwith on games and experience the difference.
-
Quote:
Originally Posted by
JohnMike
Really?!.... Show me P45 bandwith compare to X48!..... What matter's higher FSB speed if you can't match X48 bandwith?!.. Try and make a comparation beetwin high/low chipset bandwith on games and experience the difference.
The fact of the matter is 4870s don't appear to take a hit in dual card crossfire at 8x PCIE 2.0 bandwidth levels so your argument isn't valid. Down the road future gpus will strain the bus but for the time being ( and likely for another 6months to a year) P45 will have adequate bandwidth, 4870 x2 included. Even if there would be any differences today it would likely only appear under heavily overclocked situations ( eg volt modded, water cooling / ice etc ) The only time I could see the P45 tank would be with 3 cards + and face it, most people who spend that much on gpus will buy a x48/x58 (down the road ) anyways.
-
Quote:
Originally Posted by
Chickenfeed
The fact of the matter is 4870s don't appear to take a hit in dual card crossfire at 8x PCIE 2.0 bandwidth levels so your argument isn't valid. Down the road future gpus will strain the bus but for the time being ( and likely for another 6months to a year) P45 will have adequate bandwidth, 4870 x2 included. Even if there would be any differences today it would likely only appear under heavily overclocked situations ( eg volt modded, water cooling / ice etc ) The only time I could see the P45 tank would be with 3 cards + and face it, most people who spend that much on gpus will buy a x48/x58 (down the road ) anyways.
Well, 4850's do show a rather noticeable difference in performance between x48 and p45, wouldnt it be even more visible on the 4870's?
-
Quote:
Originally Posted by
Neuuubeh
Well, 4850's do show a rather noticeable difference in performance between x48 and p45, wouldn't it be even more visible on the 4870's?
One review showed that to my knowledge and the general consensus here is their data was skewed, be it bad drivers, install or testing methods. Other reviewers and user tests here have shown the 4850s to do just fine on P45. If you thihnk about it what point would it be to offer crossfire on these boards if it couldn't handle the most likely option ( CF 4850s )
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from one review i saw (in another thread) bandwidth restriction/bottleneck is only noticeable at 2560 x 1600 res. for 4870 cf.
up to and including 1920x1200 with 4xAA 16xAF there was no difference in fps between 8x8x and 16x16x pci-e 2.0
those with 30" monitors can probly afford the piddly extra $$ for an x48 or x38 chipset.
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Originally Posted by
Chickenfeed
The fact of the matter is 4870s don't appear to take a hit in dual card crossfire at 8x PCIE 2.0 bandwidth levels so your argument isn't valid. Down the road future gpus will strain the bus but for the time being ( and likely for another 6months to a year) P45 will have adequate bandwidth, 4870 x2 included. Even if there would be any differences today it would likely only appear under heavily overclocked situations ( eg volt modded, water cooling / ice etc ) The only time I could see the P45 tank would be with 3 cards + and face it, most people who spend that much on gpus will buy a x48/x58 (down the road ) anyways.
It looks like you don't know what your talking about. run a test with your system experience the difference with low/high chipset bandwith and see for your self.
This isn't about PCie bandwith. We all know that nowadays that PCie bandwith is more then enough for games and multi-graphics systems.
Chipset bandwith matters for GPU/CPU data flow, even on a single Mid/high-end GPU you can see the difference.
On a multi-GPU system the chipset bandwith really matters more than a single-GPU system. X48 rules P45 on this matter and it's a fact that anyone can run and test.
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Quote:
Originally Posted by
Chickenfeed
If you thihnk about it what point would it be to offer crossfire on these boards if it couldn't handle the most likely option ( CF 4850s )
I'm just saying :p. I can imagine very well how Intel could "nerf" the crossfire performance on p45 in order to sell their "enthusiast" x38/48. the more I think about it the more it makes sense :)
Oh well, I have my x38 and defo aint changing it any time soon..
EDIT I'm not looking to pick a fight, just curious about this subject :D