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6870 CF or 6950 unlocked, 2560x1600 res

post #1 of 18
Thread Starter 
i've gone from gaming at 1920x1080 to 2560x1600 and my 6870 can't seem to handle the new resolution with consistant fps, meaning at least 30 fps. i see my options as either getting another 6870, or get a 6950 and unlock it to a 6970 with the possibility of getting a second 6950 down the line if needed. i was also wondering if the 2Gb of ram in the 6950 are benefit enough to warrant getting it over another 6870?

i play mostly WoW and BFBC2. i want to be able to max out all the settings. i would also like whatever i get to be able to handle any new games for at least the next year. can xfire 6870's even handle this? can a single 6950 do it? is xfire a must at 2560x1600 with all the eyecandy?

System:
AMD Phenom II 955 @3.6Ghz
Asus M4A78T-E
2x2Gb Gskill @1600Mhz
Corsair 650W PSU
Sapphire 6850 @950/1200
post #2 of 18
6950 unlocked so you can go 6970 CF later. The added VRAM will be a bigger help at that res too. With SLi/CF 2x1gb cards !=2gb since the VRAM is mirrored between them.
For BFBC2 you will NEED a 6950 (unlocked) CF for "all the eyecandy" I don't know about WoW 'cause I don't play it, but the graphics are pretty stodgy 1x6950 ought to do it. If you ever do go CF with the 6950s you will need a CPU upgrade, too.
Edited by 8ight - 5/22/11 at 11:09am
 
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post #3 of 18
Pardon me if I am wrong, but doesn't 6870's CF perform better than a single 6970? I remember from one of my last threads that performs a little bit better if both are at stock settings.
post #4 of 18
Quote:
Originally Posted by ComradeNF View Post
Pardon me if I am wrong, but doesn't 6870's CF perform better than a single 6970? I remember from one of my last threads that performs a little bit better if both are at stock settings.
Yes but at this res it's the added VRAM that will count and the 6970 will win out and be better in the long run (CF).
 
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post #5 of 18
Thread Starter 
as far as WoW goes, it is pretty stodgy graphics, but to keep it going smoothly with sometimes 25+ other players shooting stuff all over your screen can take a lot of GPU power. 20 fps or lower is pretty common for me now.

why would CF 6950's require a CPU upgrade? PSU maybe, but if 1 6950 can handle BFBC2 with my current CPU, why would 2 need a CPU upgrade? settings would already be max so i don't see there being a CPU bottleneck.
post #6 of 18
Quote:
Originally Posted by conkasaurus View Post
as far as WoW goes, it is pretty stodgy graphics, but to keep it going smoothly with sometimes 25+ other players shooting stuff all over your screen can take a lot of GPU power. 20 fps or lower is pretty common for me now.

why would CF 6950's require a CPU upgrade? PSU maybe, but if 1 6950 can handle BFBC2 with my current CPU, why would 2 need a CPU upgrade? settings would already be max so i don't see there being a CPU bottleneck.
You need more CPU power to feed additional cards. That's why crazy tri and quad GPU setups don't scale well without some serious power behind them a la 980/990x, SR-2, etc.
EDIT: You won't have a CPU bottleneck (game not getting enough power) you will just have poorer scaling=less GPU performance.
 
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post #7 of 18
Im in the same position as you choosing graphic card. Difference is im on 5760x1080 eyefinity i can still max bc2 just with no AA fps is at 60 with dips im low 30s in some cases. I read somewhere that unless you go crossfire 2gb cards you wont see much difference with 1gb. Id say go for another 6870 if you already have one if not better go with a 6950 2gb then crossfire later.
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post #8 of 18
Quote:
Originally Posted by crUk View Post
Im in the same position as you choosing graphic card. Difference is im on 5760x1080 eyefinity i can still max bc2 just with no AA fps is at 60 with dips im low 30s in some cases. I read somewhere that unless you go crossfire 2gb cards you wont see much difference with 1gb. Id say go for another 6870 if you already have one if not better go with a 6950 2gb then crossfire later.
He WILL see a difference with the added shaders and with AA.
 
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post #9 of 18
Quote:
Originally Posted by 8ight View Post
He WILL see a difference with the added shaders and with AA.
Im sure he will see a difference. How much is the question.
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post #10 of 18
Quote:
Originally Posted by crUk View Post
Im sure he will see a difference. How much is the question.
At his res, plenty enough to justify the switch.
 
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