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2 x 6950 2gb - Page 3

post #21 of 24
Quote:
Originally Posted by Skripka View Post
Within my knowledge only Gigabyte UD7 LGA1155 boards can crossfire at x16/x16. Almost all Sandy boards can only manage x8/x8...I don't know of any that will not bottleneck under tri-fire due to motherboard chipset PCIe limitation.
It won't:
http://www.tomshardware.co.uk/p67-ga...-32165-11.html


Quote:
Originally Posted by RockHardMcNasty View Post
Yep, Z68 will give the option of using SSD caching. If you just want the SSD for a boot drive you could do that on P67.

OP, using a screen of bigger physical size does not change the resolution. 32" TV @ 1080p vs 23" 1080p is the same amount of pixels. 3x 6950s would be serious overkill for a single 1080 display.
But for triple screens, if you want to run everything on max details you have to go with at least triple 6950
    
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post #22 of 24
Quote:
Originally Posted by moa. View Post
OTOH, the highest they test is "only" 4megapixel. I could run Crysis with decent framerates on my single lowly 6850 @4 megapixel eyefinity on High IIRC (4080x1024 is what I used to run). Cranking the resolution up to 6megapixels+ would change things a fair bit I'd wager a guess. @4 megapixel 3x6950s aren't even sweating yet.
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DD Boxen
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post #23 of 24
Quote:
Originally Posted by Skripka View Post
Within my knowledge only Gigabyte UD7 LGA1155 boards can crossfire at x16/x16. Almost all Sandy boards can only manage x8/x8...I don't know of any that will not bottleneck under tri-fire due to motherboard chipset PCIe limitation.
Any board with the NF200 chip can do x16/x16
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post #24 of 24
P8P67 WS Revolution can do 8x/8x/8x/8x for quad-fire or 16x/16x for Crossfire and it's a hell of a lot cheaper than other NF200 boards thats for sure.

It's what I use and it definitely makes a difference with 3 6970s.
I haven't done 4 yet since I don't have room in my case with the PSU in the way.

Even scaling @ 1080p with a 120hz monitor is very noticeable since with my Acer GD235HZ 3d 120hz monitor I like to keep all of my games including Battlefield Bad company 2 at 120fps minimum maxed out @ 8xAA. With 3 6970s I easily stay above 110 fps on almost all multiplayer maps regardless of player count. It's absolutely something that must be experienced. You can definitely tell a massive difference between 60 fps minimum even with vsync off.

At the end of the day though I'm plenty happy doing Nvidia Surround on my 560 Ti SLI though. I can keep the frames in Bad company 2 at around 70 fps avg with 2x AA which I'm happy with. It's also much more stable than AMD is with Bad company 2. I get white screens like a madman with Tri-Fire. The infamous "White Screen of Death (WSOD)". It drove me insane so I took my 2 GTX 560 Tis I had laying around and slapped them in and OC'd them to 1 Ghz core each and I was plenty satisfied. Yes the frames could be much higher in 3x surround but thats why I lower AA down to 2x to reduce the impact on shooting performance via lag.

The GTX 560 Tis in SLI perform quite a bit higher than the GTX 580 I had OC'd to 940 Mhz core, and it was a beast. Usually averaging 90 fps @1080p 8xMSAA.

I guess I'm rambling but I've had pretty much every combination of cards you can imagine in SLI/Crossfire, so I hope my input is helpful to you.

Good luck!
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Omega
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The Beast
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256GB x2 Crucial M4 SSD RAID0 Samsung 840 500GB SSD Internal 1TB x 2 External USB 3.0 1.5TB + 2TB + 1TB + 3TB 
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LG Bluray Burner Triple thick EK 360 Rad with D5 Vario & Raystor... Windows 7 Ultimate x64 Catleap 27" 2560x1440 LED LCD 
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Razer Lycosa Coolermaster Silent Pro Gold 1200W Rosewill Thor v2 Logitech G500 
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2TB External+128GB M4 SSD+64GB SSD+250GB WD External DVD Multi H212+ HSF Windows 7 Ultimate 64bit 
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Acer GD235HZ 120hz 3d 24" Logitech K120 Corsair TX850 + Thermaltake 850W Antec 900 
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