Multi GPU SLI or Crossfire is still a disaster. For both the GX2 and the X2.
Single 4870X2 > 4870X2 Crossfire and GX2 SLI because of stability and performance issues.
Perkam
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Driver Heaven as an interesting review of an 4870x2 crossfire vs tri sli gtx280 on a skulltrail board with the cores overclocked to 4.4 ghz:shocked:
http://www.driverheaven.net/reviews....d=609&pageid=4
I suspect the pci express x16 slots could be holding the 4870x2 back.
wow... that was an incredible review :clap:
regardsQuote:
Graphics VP expects AMD to stay on top for “some time”
What's next?
Of course AMD has to stick two 4870 GPUs on one board to win this prize. We ask if it offers any advantages over two single 4870s on a CrossFire motherboard. "The 4870X2 has 2G GDDR5 memory, which provides the end user a performance boost in high resolutions and high settings," says Byrne. "This is also a single slot board and doesn't require a CrossFire motherboard. It's just an awesome product and we're selling every board we produce.
"The great news is that demand keeps growing and we are significantly increasing our market share in both the channel and the OEM markets. The 4000 series graphics cards are considered by users and by customers as the best graphics cards available in the market today."
Byrne seemed pretty jubilant when we spoke to him just after the 4800 series launch. We ask him if his initial optimism has proven justified. "The great news is that demand keeps growing and we are significantly increasing our market share in both the channel and the OEM markets," says Byrne. "The 4000 series graphics cards are considered by users and by customers as the best graphics cards available in the market today."
The only way to stay ahead in the graphics market is to constantly innovate. To conclude we ask Byrne what we can expect to see next from AMD. Watch this space; you won't need to wait long for our next chat," he says. "Remember, the HD4870 X2 was step two, step three is imminent."
http://channel.hexus.net/content/ite...m=15058&page=3
So I guess step three is HD4850X2?
HD4870 X3 with a shrink die and 100% scaling. :D
Or perhaps a 400 mm^2 384 bit 1.5 GB GDDR5 upscale derivative of RV770 ? OK, drawing straws there, move on. :D
When R600 was released, it was announced that it would be a easily scaled architecture that would be used in 3 generations... so RV770/R700 is just the 2nd step. R800/RV870 will be a continuation, but might be amazing
I remember Step 3 being 4670, 4650, etc.
step 3 is profit guys :rofl:
Extremely risky.
GT260 takes up about the same power as a 2900XT at load, and I don't think the Liberty can handle max load (it's very risky). Only the good 550W stuff is capable of driving a 2900XT on a normal system.
I suggest going with a single 4850, or get this:
http://www.newegg.com/Product/Produc...82E16817104019
And you can power up even the X2 without problems.
Sideport enabled @ benchforum in Serbia :)
"Step 3" has always been the lower-end implementation of the RV770 core.
phase 1 complete
http://muertoderisa.typepad.com/muer..._of_undies.jpg
I made 22000+ on XP, 3dmark06. Is that good?
Anyone that uses CFAA, does it work in DX10 yet? I read on the [h] analysis that it doesn't, but that was a few weeks ago now. I'm hardly going to buy one or two of these and run some low level AA, so 12x/24x CFAA is something i'd be interested in :)
That suggestion is a real no no... better go with a higher spec PSU like OCZ 700 gameXtream or co...
Think's it pretty okay mate... might need some tweaking, is this with the card at stock speeds... I made almost 24K with 4.5Ghz quad ram at 1200mhz and 8800GTS in SLI in XP...
http://forum.xcpus.com/gallery/d/739...0X2_WOWSER.JPG
9650@3.67 GHz.... 20609 3DM06, default, under XP
Jack
It's definitely not royal power, but some people dislike replacing PSUs at a whim. (Of course, having the right purchase does negate it completely)
The Booster wasn't meant to supply all 12V+ wattages, just part of it. But I'd say a good main PSU would be a better insurance overall.
Xello, stick with 8x. You'd be lucky that even half of the DX10 games support that.
Is there a brand name that is more recommended than another when buying a 4870x2? Or are they all the same(memory chips in particular)?
Yeah, stock speeds, but the ram is at 1600. The cpu is overclocked via 400x10 multiplier only and some voltage tweaking, not with fsb because I have too many problems raising the fsb with my system right now.
Well then my 22300 are in line with your result, since the cpu is a quad @4.
From what i understand it is 8x, just with more filters added for an effective 24x on certain textures or something. The [H] article is quite confusing... Especially since i'm used to NV AA modes, but it seems to imply that the mode will work in everything.
If i wanted just 8x i'd go for a single 4870 :)
i can easily say that by far this would be my best investment for the future, it'll easily run any game at very high settings at any resolution im very happy!
24x is edge quality. You'll get near perfect edges. Alpha textures are still 8x though.
It works in DX9 apps that support 8x normal AA (12x for 4x normal only apps)
In DX10.1 you have the option of specifying AA components so you don't need the brute-forced 24x way (faster, better, eg Assassin's Creed). DX10 apps are a pain in the *** though.
In most DX10 app cases I'd take the DX9 render path and use fancy AA.
Crysis DX9 4x + Wide-tent >>>>>>> Crysis DX10 8x :up:
Anyone know where I can get the 8.856 betas?
MY CARD GETTING HERE WEDNESDAY :shocked:!!!!!! lol thnx to credit cards of course :p:;)
Ok, now I know it's a dead horse for some, but others know it's VERY hard to get a real answer on the situation. Ether touched on it in his review, but I'd like to know 100% here, how is the micro-stuttering situation, specifically at 1920x1200/1080. I've heard a million different things from a million different people(never trust a person who only buys one brand, number one rule when it comes to issues with hardware), so I'd like a straight out answer.
How bad is MS on these cards. I ask because in 1-2 weeks I'm buying a new card(8800GTX sold, guy's picking it up sometime next week). The obvious choices is the GTX-280 or the 4870x2, and the decision narrows down to this one issue.
It still exist, but the issue was greatly improved compared to the GX2 and 3870x2. Seems like it can only be noticed in a few instances.
I dont own it, but thats what I've read from reviewers around the web.
Most people think its not an big deal at all and are very satisfied with the card.
If you are VERY picky, the GTX280 is looking good for the price. Much cheaper than the hd4870x2 (@ newegg at least). The price difference is kinda proportional with the performance difference tho.
Been testing a friend's card for about a week. I haven't noticed any MS at 1920x1200 at all.
When I buy a card, it's job is to last a few years. I generally only upgrade when games hit that I can't max out that I want to play, or when I can do so with little to no expense to myself. With my 8800GTX already sold, plus my old A64 parts, the new card is considered free regardless of which one I go with.
So really, it narrows down to the micro-stuttering, just how bad is it... If it's not too bad at high-resolution(unnoticeable in other-words), then I may once again have an ATi card in my system. As against multi-gpu setups as I happen to be, I can't ignore the performance difference between nvidia and ati this time around, plain and simple.
Nice to hear. Obviously I(as many others would as well) would like as many confirmations upon this as possible.
My card gives no microstuttering at all at 1920x1200. I haven't noticed any microstuttering in 10+ games.
PCGH did a MS test and found that MS only occurs when the average FPS drops below 40FPS, which doesn't happen even at 2560 resolution with 4xAA 16xAF in most games.
Crysis is the only game where drivers are lacking at the moment. Beyond that, there is little comparison between GTX 280. The X2 is faster than GTX 280 SLI in games at high resolutions and high AA.
Perkam
I haven't noticed any microstuttering in any games either, (GRID, DIRT, CS:S, Asssasins Creed, so far...) I did notice a lag in the HL2:Lost Coast stress test where it looked like it was building up in the first few secs then flew through the test perfectly.
BTW I ran GPU-Z last night while playing GRID @ 1920x1200 with max settings and when I quit the GPU cores were all hovering around 25-30% each lol I'll grab a screen if you want. I'm just very happy with this card atm as it should last me till my next GPU upgrade!
emu
What would be better ATI HD 4870X2 or GTX260 SLI ???
Thanx!
With vsync always on absolutely no MS here, (my second ati card after the 850 xt, had voodoo1, voodoo2, voodoo3, matrox millenium, geforce 3, geforce 5900, GTX 8800) all on air idle fanspeed 1200 , idle temp gpu1 50, gpu2 70, in action temp is 65 and 86 and fanspeed between 2000 and 2800, tower is silverstone tj-07, MB is Asus P5WDG2 WS Pro, C2D @ 3200, 4 GB RAM, Vista x64, XP and XP x64.
The X2 is faster than GTX 280 SLI in games at high resolutions and high AA.
Perkam
-------------------------------------------------------------------------------
Any linkS?
Baffling? :clap:
You buy one card, or the other. If one performs better than the other in all games, it's easy choice. If it also in most -or many- games performs the same or better than TWO of the other in SLI but costs half (1 card vs 2) the choice is even easier.
http://www.anandtech.com/video/showdoc.aspx?i=3372&p=4 :rolleyes:
Has anyone seen any review sites post up info about PCI-E 1.1 possibly bottlenecking the 4870 x2? I've seen reports comparing Crossfire/SLI on P45/X38/X48 platforms but nothing comparing the different platforms with one 4870 x2.
Shakti,
Looks like your GPU2 is sticking in 3D mode clocks, check the clocks. I think its a driver issue. I get the same after a restart etc and one GPU is @750 clock and the other is at 507. By running a 3D app it resets it on mine and all is back to normal.
Might not be but just thought I'd point it out. if anyone knows of a more permanent fix let me know. (I was using official 8.8s now on 8.8betas but havent checked again)
emu
The same here, but to see the primary gpu @ 750 I have to look at the first page in Gpu-z. CCC and the second page of Gpu-z (the one with the sensors) both report 500, as if the gpu was in 2d mode as the secondary one. But only the latter is actually in 2d mode.
Yes, one @ 507 and the other @ 750 came with the new 8.8 driver, the driver on cd (by the way, a selfburned cd, lol) was beta and did not show this behavior. So i hope with the next release this will be corrected. I have 86 degrees on gpu2 idle with this driver...
It also happens with another beta, 8.854. These are very good drivers, rumored to be the base for Catalyst 8.9, but still have this problem.
http://www.legionhardware.com/document.php?id=770&p=0
Quote:
Today we are testing at a range of CPU’s with the new Radeon HD 4870 X2 graphics card, to try and determine what kind of processing power is required to push this new dual-GPU monster to the limit. In total there are 40 CPU configurations tested, including processors from the Intel Core 2 Quad and Core 2 Duo series, along with a number of AMD Phenom X4 and Athlon64 X2 processors…
Interesting review, for sure.
I've got some issues with the conclusions, but overall, good information to have.
has anyone read the follow up review over at Driverheaven with Skulltrail and tripple SLI GTX280 vs 4870X2 Xfire
http://www.driverheaven.net/reviews....d=609&pageid=1
seems like ATI setup gets beaten in some tests and smashed in others here
'Quote:
Test System
2x ATI Reference Radeon HD 4870 X2 - 2gb
3x XFX GeForce GTX 280 XXX - 1gb
Dell 3007WFP 30 inch monitor
Skulltrail D5400XS motherboard - 1140 bios
8GB of Crucial FB DDR2 @ 800mhz (4x2GB)
2x Intel QX9775 Engineering Samples (@ 4.4 Ghz – 11x400, 1.475 volts)
2x Corsair Nautilus Watercoolers with modded underside 220mm fans
Corsair 1000w PSU
LG 16x DVD Burner
4x WD Raptor Hard Drives (OS/Games on RAID 0 Drives)
1x Samsung Spinpoint
AS5 Thermal Compound
Windows Vista Ultimate 64Bit + SP1
Forceware Release 179.83
Catalyst 8.8.4 beta for X2
DirectX 9.0c/DirectX 10
Call Of Duty 4 (DX9)
Grid (DX9)
Assassins Creed (DX10)
Ghost Recon Advanced Warfighter 2 (DX9)
Lost Planet Colonies (DX10)
Half-Life 2: Ep2 (DX9)
World In Conflict (DX10)
Crysis (DX10)
Oblivion (DX9)
very confusing reading all these different reviews and everyone's got something different to say lol
Hello all, I have a quick and dumb question for you as I know just about nothing about ATI stuff. I just installed my 4870x2 on vista 64 with cat 8.9. Do I need to do anything to make it work in crossfire (I don't even know how to check to see if its in crossfire)? I scored 18,652 on 3dmark06 with a E8500 at 3.8, does that seem ok. Sorry for the noob questions and thank you for any help.