the 4850 is a hell of a sexy card!
and it's as low as around 140 € here in germany. i'm definately on the verge of buying one - but on the other hand i can't estimate in which direction nvidia is heading with it's physx and cuda. :(
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the 4850 is a hell of a sexy card!
and it's as low as around 140 € here in germany. i'm definately on the verge of buying one - but on the other hand i can't estimate in which direction nvidia is heading with it's physx and cuda. :(
Does anyone know if the 4 mount holes at the side of the 4870 GPU are the same dimensions as the 1900XT
This is the block i am using on my 1900XT
http://www.komplett.no/img/p/200/325718.jpg
I'd do the same, CF on a P35 is severely limited by the fact that is has to use the 2nd card on a 4x PCIe gen 1 bus and this second bus is coupled to the southbridge which hampers latency and bandwidth even more. So get a 4870 and clock it like crazy or upgrade to a P45 or a X48/X38 board. I'd go for the former option, Nehalem is not too far from now....
Hey bro, i will be glad to help, i will have a full review up once my new ram arrives in about 3 hours from now, review will be up later tonight, i have all the games up and ready to be benched, i just need to get my memory stable. :up: P45 looks good for now as far as crossfire goes.
I can tell you this, i got a little over 19k 3dmark 06 @ 1920x1200 with my cpu at 3.8ghz and my memory running at a horrible single channel, 1 dimm 2gb at 570mhz cas 7, they have a better cpu at 4ghz, and memory configuration, and scored 1,000 points less.......my results are with vista 64 also.
4870 + some basic watercooling + hard vmod + OC LIKE A PSYCHO = win
Hmm I hoped I waited for the P45 :rolleyes:
Now I will get the 4870 and WC it with a EK.
But cant wait to see 4870x2 results.
Thanks man!! Will search for your results when I wake up in the morning. If you gonna post them in a new thread please send me a PM with a link to it.
As you have already mentioned Asus P45 seems to give the expected performance. Maybe is only a Gigabyte thing with those weird results but then again the difference really becomes obvious in game tests. Vantage shows a bit of difference and then you can clearly see the difference in game tests. 3DMark06 shows little difference even in their tests.
Looking at the review again the difference is clealry visible when 4xAA/16xAF is used. So please make sure you test bench with those settings too.
Ok i have no idea what to buy a HD4850 CF setup or the HD4870. It will be used for gaming at 1680x1050, and it only has to last for 1 year max :D
Every new AMD/ATi generation 1 buy new cards. So any tips?
And yes i have seen all the reviews but just can't make up my mind about what is the right thing to pick.
well, if your on a tight budget and im assuming you are or you would consider 4870xfire, why dont you buy 1 4850 and see if that suits you and if it dont then you could always add another or a 4870.
I'd go with the 4870... 2 reasons
1.) In cf, adding a 4850 would slow your 4870 down to act almost like a 4850.. load balancing.
2.) In time, if the 4870 gets a bit slow for your requirements, a second will be cheaper then what you bought the first one for. Additionally, adding a 4870x2 may be a very viable option for a tri crossfirex setup. In a years time, they could also be quite cheap.
would this work well together?
http://www.motherboardpro.com/images...r.-P45-T3R.jpg
http://www.motherboardpro.com/DFI-LP...ard-p-660.html
with 2 x 4870 1gb cf
also is a e8400 @ 4ghz enough for no bottlenecking
Should work great together. 4ghz should be adequate, I'd doubt there would be any noticeable bottleneck at that clock with these cards.
Looks like R700 is in my future:
Article by CNET
Wow, if true then R700 is going to be incredible.Quote:
For ATI, the execution of this chip-ganging strategy is the key. And this is where ATI appears to have been successful. "The inter-processor communications. Getting that to work has been the trick. This is what ATI has done. They've come up with this stellar way of doing inter-processor communications so they can in fact get the scaling," according to Peddie.
...*snip*...
AMD-ATI's upcoming R700 (rumored to be called the 4870 X2) two-chip graphics board will be the ultimate test of this strategy.
"It's a new proprietary inter-processor communication technology. If they put these two chips on one board and it does scale properly, then they have pulled off a coup," he said.
"When you gang up graphics chips (using the traditional Scalable Link Interface or CrossFire technologies) they roll off pretty fast. ("Roll off" implies that performance doesn't scale up well.) "So when you put two boards in, you don't get twice the performance but you (only) get one and a half. You put four boards in and you (only) get about 1.7, 1.8. What ATI is saying is that with two chips using (their) proprietary inter-bus, they will get 1.8 (the performance) with two chips. If that's true, you can expect to see four of them giving you something around 2.5."
Getting 2.5 times the performance from four boards would be a masterstroke for ATI.
The previous ATI dual-chip solution was very different, Peddie said. "The HD 3870 X2 was not a proprietary bus but a CrossFire connection. The CrossFire connection and the SLI connection are at the very, very end of the pipeline. Not the most efficient place to do an inter-processor communication. That's one of the reasons ATI has abandoned it."
Of course. It was done before the card even launched. Would you expect any less?
http://www.xtremesystems.org/forums/...d.php?t=190990
It doesn't change the fact that scaling is hurt by the fact that 1 GPU stalls (adds frametime) while it waits for data from the other GPUs memory in the case where games are not coded with multi-gpu in mind.
This also has nothing to do with microstutter, but we'll see.
Seriously man, you should give up with the predictions because you have a bad history of being embarrassingly wrong.
You have presented us with an "I'm in the know" attitude and made plenty of predictions but let's take a short look at them:
http://www.xtremesystems.org/forums/...postcount=1524
http://www.xtremesystems.org/forums/...postcount=1543 Ohh, you know so huh? :rolleyes:
http://www.xtremesystems.org/forums/...2&postcount=88 I'm not saying that it factually is or isn't. But we will see won't we? :up:
http://www.xtremesystems.org/forums/...9&postcount=96
And here is a real gem: "That and maybe I've seen an R700 ;)"
:ROTF: :rofl: :ROTF: :rofl: :ROTF: :rofl:
:rofl: :ROTF: :rofl: :ROTF: :rofl: :ROTF:
:ROTF: :rofl: :ROTF: :rofl: :ROTF: :rofl:
:rofl: :ROTF: :rofl: :ROTF: :rofl: :ROTF:
Let me be the first to say it - yeah right. :rolleyes: You haven't seen one before the screenshots were posted here is my guess.
It's pretty clear that you don't have any more clue about the truth of the wild rumors flying about then the rest of us. Just sit back and wait for the truth to come out instead of implying false authority on the subject. They are just companies and making them compete is good. You should be hoping that ATI makes a good card even if you don't plan on ever buying one.
lol... :rofl:
Well said Solus.
i wont make any judgment on what it is ... but if cnet's article is right as pointed out by zerazax
http://news.cnet.com/8301-13924_3-9978746-64.html
sounds really interesting, although those "1.5 times for 2 cards, 1.8 times for 4 boards" numbers are somewhat arguableQuote:
"When you gang up graphics chips (using the traditional Scalable Link Interface or CrossFire technologies) they roll off pretty fast. ("Roll off" implies that performance doesn't scale up well.) "So when you put two boards in, you don't get twice the performance but you (only) get one and a half. You put four boards in and you (only) get about 1.7, 1.8. What ATI is saying is that with two chips using (their) proprietary inter-bus, they will get 1.8 (the performance) with two chips. If that's true, you can expect to see four of them giving you something around 2.5."
Getting 2.5 times the performance from four boards would be a masterstroke for ATI.
i will definitely wait for benchies then make decision, thankfully i waited to see how GTX 280 played out
Arguable, yes. There are certain games and 3D apps that scale better than others. But the majority is what I believe the writer is refering to. And I am with you on just layin low and waiting for the real world benchies to come out and tell the true story.
As i said before, r700 isnt just like r680. It still has the plx chip (now w/ pcie 2.0) but it also uses a so called "crossfirex sideport" for communication. Just wait a bit and u´ll see - it scales better than normal cf.
It's not the budget, it's more whats realistic for a 1680x1050 reso. I can easy burn 450 euro on a set of HD4870 but do you really need that on sutch a reso? That's my question :)
1.) I know about load balancing, but that's not the problem. I won't be buying 2 differend cards. It's 1 HD4870 or 2 HD4850.
2.) In time.... The setup only needs to last till the next generation Radeons hit the shops ( the HD5xxx if that will be the name ).
If 4870x2 solves microstutter it'll be a great card; if it scales well with all games, of course. CF scaling is less consistent than SLI.
But I still can't find a reason to have more performance than a single 4870 below 1900x1200 resolution. All games are console ports.
Hi
OC Tool für 4870 ?
CCC max 790/1100
27004 im 06er
http://service.futuremark.com/compare?3dm06=7240841
http://www.abload.de/thumb/06er270041b3.jpg
was expecting some test results from GAR this morning...:shrug: concerning how CF performs on P45 (2 x 8 lanes) compared to X48 (2 x 16)...
It will use AFR, that's the nature of a dual chip card. Unless they have a big memory space for shared workload exchange that is.
What's interesting here is that with the "sideport", there's actually a chance of syncing frames or negotiating delays, spreading them around evenly so that the experience is great overall. AFR without the worst of AFR.
But with less FPS associated with delaying one of the GPUs.
Not necessarily....
If you do it right then it will only be a small hit, nothing drastic. Now the GPU starts rendering the next frame as fast as it gets it's frame from the CPU, but you could also make it start rendering at around halfway through the render pass of the other GPU. This will be a bit inconsistent for the first couple of frames that the GPUs have to render, but this will even out over time and the framerate will only be a little slower (like 90% of 'normal') of what it is now.
It's currently looking like you were right after all, to be honest I also hoped you were right as this is better for ATI and competition in general. I hope that this new PLX chip is just a 48 lanes PCIe gen2 chip that splits the PCIe lanes so both chips can interface with the system simultaneously and that this CrossFireX Sideport will provide an extra connection between the two GPUs directly. That would be better as this would provide lower latencies for this sideport and could also mean higher bandwidth. Here is hoping that it will smash all expectations, I just hope it will not be to much of a disappointment.
E8500@4ghz 5x8
Biostar Tpower I45
Team Xtreem PC2-6400 CL3 4x1gb 1200mhz CL5
Sapphire HD4870 Crossfire
BFG Ageia Physx
Vista Ultimate 64bit SP1
Silverstone Op1000
Ati 8.6 Hotfix
PS i had/still have a ton of issue with p45 and crossfire
example random bsod's
NB voltage for single card is +0.1v
for both cards i need to pump up to +0.2v
rams from 2.14v for single card needed to pump to 2.25v
still not stable.. as dreamscene cannot be run in dual monitor always hangs... on stock
but on the overclock setting.. it lasted atleast 10 minutes before hang
3dmark06 default
http://i287.photobucket.com/albums/l...Untitled-8.jpg
3dmark06 1920x1200
http://i287.photobucket.com/albums/l...Untitled-9.jpg
3dmark06 1920x1200 8AA 16AS pawah
http://i287.photobucket.com/albums/l...ntitled-10.jpg
http://i287.photobucket.com/albums/l.../Untitled2.jpghttp://i287.photobucket.com/albums/l...ntitled-11.jpg
vs
Forumer Irenic from LYN with
http://forum.lowyat.net/index.php?sh...ost&p=18261421
vantage extreme
4870 cf default
x3350 default
2gb crucial ddr3 default
vista ultimate 64bit
http://i207.photobucket.com/albums/b...ageextreme.jpg
so basically there is a bottleneck... atleast for biostar tpower i45
will post the maximus 2 formula results later
@ cstkl1: hey thanks for that!
how about some HD4850 or HD4870 in CF using P35 motherboard (16x + 4x)????
And that's mainly because the 4x PCIe links are coming from the southbridge and the connection between the north and southbridge itself is barely (or not) enough to support that.
BTW, 4870 prices are still dropping over here, they are approaching €215 here (incl tax) and that's very tempting. Need to hold out until R700 launches.....
I'm either gonna get DFI LP X38-T2R or UT X48-T3RS. Can't make my mind if i should keep my current DDR2 or switch to DDR3. If you could add another 40$ i would suggest you the DFI DK X38-T2R or just ebay for a slightly used X38 mobo.
GAR had problems:
"I have since returned this board, it was the worst motherboard compatibility i have ever had in 15 years of building computers, i am not going to buy new products again, wait months for the problems to be solved.............DDR3 is problems for now, intel chipsets suck because memory controller is on the NB and not on the cpu........that is where AMD wins, and i cannot wait for the day that AMD makes a comback, hopefully its in the next year."
"I have gotten myself an ASUS Rampage Formula with some g.skill 4gb ddr2 8500 set, x48 is better for me because of the 4850 crossfire i will be using...."
All in here http://www.xtremesystems.org/forums/...=191848&page=5
cstkl1 - nice benches however those do not show the real problem with P45 chipset motherboards.
You need to run 4xAA/16xAF in games and at high res. 3DMark/Vanatage will not really show the problem.
I decide to go with X48 as opposed to P45. Just like GAR I dont want to be an unpaid BETA tester for Asus. I think WS EVO has been proven as very good motherboard so that will be my next upgrade.
I have seen this ASUS cycle so many times it makes me sick in the stomach now. With each new chipset (like P45 now) they bring out a handful of motherboards - the ones that are in the "cheaper" price brackets by Asus standards. Once those motherboard are out to the public then they use the guineapigs to do their work for them (for Asus) for free and they keep making changes in the bios, sometimes new motherboard revisions. Once the dust settles a bit and many of the issues have been solved, Asus releases the new chipset "heavyweights" at higher prices. Has anybody noticed how those "heavyweight" motherboards are way better than the original motherboard realeased? Yes they are better since they had guinespigs worldwide to beta test their products and improve them FOR FREE!
Well from now one I refuse to be guineapig anymore. WS Evo here I come.
@ MnM: thanks for the link. I missed that post; so it sounds like P45 doesn't always meet expectations when compared to X48. Not the first time I read about users getting huge issues with this chipset. Hard to understand the good reviews on the web though...well let's wait and see, may be a chipset revision or a better bios :shrug:
Thanks GAR, now i know that my decision to get the P5Q-Deluxe (DDR2) was the correct one...wouldnt want to have to give up my G.Skill PQ's!
so if I understand correctly you're talking about issues on the P5Q3 Deluxe which is a P45/DDR3. But most other P45 boards require DDR2, so :confused: may be they're OK :confused:
My main concern was actually to know whether two ATI in CF would be bottle necked on a 2 x 8 P45 compared to an X48 that has 2 x 16, taking into account the fact that the P45 series has got new interesting features...if the FPS difference is marginal in CF...OK Anandtech should come up soon with a full test of the Maximus II formula, let's wait and see, hoping they'll compare it to the X48 Rampage Formula...
well boys one of my HIS 4870's crapped the bed last night, artifacts all over the screen at all stages of boot and desktop, funny thing was i hadnt even OC'd it yet it was running at stock :( :( :( :(
thankfully i still have one good one, i hope newegg can replace the dead one :\
crossfireX HD4870 + HD4850
Quote:
HD4870 + HD4850 Crossfire X stock clocks. Q6600 @ 3.6ghz, 400FSB, 1200mhz RAM.
http://img.techpowerup.org/080627/DSC00339.jpg
http://img.techpowerup.org/080627/DSC00341.jpg
http://img.techpowerup.org/080627/xfire.jpg
http://img.techpowerup.org/080627/xfire19631.jpg
http://img.techpowerup.org/080627/xfireP11736.jpg
http://img.techpowerup.org/080627/xfireDX9high.jpg
http://img.techpowerup.org/080627/xfireDX10Vhigh.jpg
http://img.techpowerup.org/080627/200213dmarks.jpg
http://forums.techpowerup.com/showth...t=64150&page=3
Quote:
HD4870 Single card
http://img.techpowerup.org/080627/4870 package.jpg
http://img.techpowerup.org/080627/4870insystem.jpg
HD 4870 Stock speeds. Q6600 @ 3.6ghz, RAM at 1200MHZ, 400FSB
http://img.techpowerup.org/080627/16549hd4870.jpg
http://img.techpowerup.org/080627/p8725hd4870.jpg
DX9, High Settings, 1680x1050
http://img.techpowerup.org/080627/crysisdx9high.jpg
DX10, Very High Settings, 1680x1050
http://img.techpowerup.org/080627/crysisdx10vhigh.jpg
source >>> http://forums.techpowerup.com/showth...t=64150&page=2
:up:
4870 actually burns more WATTs then 8800GTX under Idle, where are those claims that these cards needs <25W under Idle ??.
You were going to get a GTX280 anyways I feel like
There are already BIOS fixes out there (including an official MSI one) for it so its probably either a BIOS issue and the first wave had the wrong BIOS loaded or the drivers haven't enabled the cards to do it yet. Supposedly its coming down the line but it hasn't been confirmed either way. I recall the 3800's had this same issue at release that drivers did fix though.
nah, first i thought i would get a 280gtx regardless what ati would release this round. But 4870 turned out a lot better then expected, while 280gtx was inline with my expectations.
bios "fix" is doubtful. How many people can update a bios? I hope its really a driver issue. I also think most people want to see lower idle power draw, especial when amd promised 20W...
Also the idle power saving on the 3870 worked out of the box.
http://www.computerbase.de/artikel/h...stungsaufnahme review from the 3870 release day)
There were some cards that had the problem.
Either way though, given that MSI has a BIOS with the correct clocks already, it looks like they are aware there was an error in the first wave of cards...
P.S. I bet turning on lights a little later, leaving a few off, and other things around the house make up 40W over a year a lot faster. For one, switching light bulbs to the new ones...
Trust me, I'm in the process of doing all that and its ridiculous how much power even a change in light bubls can bring.
I hope so they fix it with the new cards lot. One of the major reason I wanted to go with ATI was because of their Powerplay. My 8800GTX used to take a lot of power even when Idle.
uhh lol i just redid the bios on my 4870, took me about 30 seconds, fixed the fan speed issue now my card loads at 55C and it isn't really all that loud either
techpowerup radeon bios 1.11 editor works wonders on the fan speeds of this card, so simple and as easy as a reboot to impliment
But you know how to flash a bios right? So why would it be an issue for you?
actually you need 3 programs to do it http://www.xtremesystems.org/forums/...ies/tongue.gif hahahahaha
this problems should be fixed in driver update i bet
you can contact ati @ http://support.ati.com
or just get a proper fan like Zalman VF900-Cu that lowers noise and temp like 70% :p
The next wave of cards will probably have a newer bios, and manufacturers will release new bios eventually anyway. And for all we know, there may be a driver fix to the issue as well, but then you might have to *gasp* update your drivers.
I flash bioses on all my other hardware all the time, I don't see why it would be some big issue for a graphics card. No hardware is perfect, especially at launch, I expect that there will be new bioses for the GTX2x0 series also. 40W is a big deal in some instances, but it is a simple enough fix for those competent enough - and for those that aren't, it will be fixed if you just wait a bit and get a later card.
After reading about all the 4870 problems, I feel alot better about going with Nvidia. I have had zero problems with GTX280 and both cards clock to 700mhz easily. 21,000+ Vantage score is fun too.
I want to like ATI but until they get the problems solved I will stay away from Xfire.
http://www.xtremesystems.org/forums/...7&postcount=17
http://www.xtremesystems.org/forums/...postcount=3956
http://www.xtremesystems.org/forums/...86&postcount=1
$300 is not cheap if the card breaks and cannot overlock at all. guess you get what you pay for.
You will stay away from CF and you do want to use SLI? I don't see the reasoning as they both have the same problems and scaling related issues....
BTW, I have not ever heard of a single product that did not even have a single problem....
EDIT:
@Hornet331: maybe you should make this to save some energy :p::
http://www.engadget.com/2008/06/28/b...small-gadgets/
*just kidding*
Who said you can't overclock at all? It's only because CCC doesn't allow higher OC's than 790MHz. It will, and has already been smashed.
And about the "problems" 4000's have; a lot of people here bought 4850's and 4870's; and only a few guys bought GTX 280's, guess why; because of its price and its, to me, lackluster performance.
So it's normal that there are problems being reported for 4000's, but not for GTX 280's.
And SLI is as much problematic as CF, don't worry. As long as both use the f'king AFR mode (without delays) they're all going to have microstutter, and they're all going to suck whatever you do.
is anyone else tried watching blue ray dvds with the new card?? i have a 4870 and it locks up my computer everytime i try to watch a movie?? im using cyberlinks program to watch them as well?? anyone had this problem or tried this in the past?
Stop smoking whatever ur smoking cos it's bad for you m8 ;) How about 920MHz core clock (now already 950MHz)? :rofl: I bet those two (1st and 3rd place) GTX280 owners that paid more than 3x as much feel pretty lame right now :P
http://www.xtremesystems.org/forums/...&postcount=180
heh its funny to see you guys get so defensive, especially after talking so much trash about gtx280.
more great new results are coming in:
lol at all 4 dying.Quote:
Any new information?
Got 4 dead here, as well.
To fuel the fire and speculation, both sets we have died in Crossfire mode. (may be a trend from the looks of it)
http://www.xtremesystems.org/forums/...0&postcount=84
and more new results:
Quote:
Well aint this just great... I'm loosing any hope these cards will run again since I can see now some of you have dead cards even without flashing the BIOS... very bad neews indeed... looks like it'll be RMA time for me monday morning...
http://www.xtremesystems.org/forums/...1&postcount=88
Congratulations, so 4 die but the guy doesn't state if he used BIOS changes or not (and yet he sees the card in ATIFlash.. what's he doing with the program?) and yet you quote ONE person that died without flashing the BIOS. Congrats on spending the time though to go to other threads to spread how you don't think its ever worked and never will!
Sounds like you're here just to solely thread crap:rolleyes: (and that goes for anyone going around to threads trying to talk crap on any side)
meh my 4780 being ordered for me next month , and i dont care what any Nv fanboy says...
If you look around here and on other forums there are a very large number of people whose cards are dying within 48 hours of purchase. On this forum alone there are easily 15+ dead cards already, and if you vist some other hardware forums you will see reports of this being widespread. It looks like AMD may have a major problem developing.
Anyways, as I've always said, buy what your heart and wallet desires. If you have the money to spend on the 280, go for it. If you only have enough for a 4870, then go for it. Its your own money, whether you spend it wisely is up to your own mind and what you expect out of the cards. What other people say shouldn't have bearing on whether you are going to be happy with your purchase (assuming it isn't completely stupid, like spending $100 on a 5 year old card) but if that even makes you happy, go for it.
And its almost time to leave for the airport woot :up:. Vacation time (albeit with a computer for work :down:)
At least 22 GTX280's confirmed failing due to heat according to the poll at Nvnews.
Over at [H] I've seen at least 2 people have theirs overheat and fail. Some 280's have a defect which causes them to go past 110 degrees and shut down, some of them die completely.
No company is immune to failures.
edit - the 4870X2 is going to be heat challenged as well