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What AMD CPU won't bottleneck two 6970s? - Page 2

post #11 of 32
Quote:
Originally Posted by gsa700 View Post
My 1090t went to 4100 Mhz no problem with an H50.

If I were buying today I'd get the 1100t as they are better binned and only a few dollars more. You might get a few more Mhz outta an 1100t.

I avg 150 fps at 1080p in most games, BFBC2, Dirt3, etc.

If that's a bottleneck, i can live with it. ;-)
Try playing Starcraft II or F1 2010 on Ultra settings, then you will see how much your CPU is holding back.

For 95% of games, an overclocked Phenom II (3.8ghz ~ 4.2ghz depending on quality of chip/cooler) quad/hexacore will be great for gaming. In some games that are coded poorly or not multithreaded well, something like Sandy Bridge is going to see huge FPS gains like here and here. But in most cases the Phenom II is not going to bottleneck two 6970s too much, and if it does it will be like getting 80 FPS instead of 90 FPS, to the point where a bottleneck doesn't really matter.
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post #12 of 32
Thread Starter 
So a PHII at 4GHz should do it?
    
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post #13 of 32
Quote:
Originally Posted by Nugu View Post
All amd's will bottle neck xfire 6970s. The fastest one would probably be an OC'd 1090t with 2 cores disabled (for potentially higher clocks, bears testing before deciding - 100-200 mhz not worth 2 cores though) or wait for BD and hope they pull it off.
^^ this, even only 1 6970~
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post #14 of 32
Quote:
Originally Posted by Dopamin3 View Post
Try playing Starcraft II or F1 2010 on Ultra settings, then you will see how much your CPU is holding back.

For 95% of games, an overclocked Phenom II (3.8ghz ~ 4.2ghz depending on quality of chip/cooler) quad/hexacore will be great for gaming. In some games that are coded poorly or not multithreaded well, something like Sandy Bridge is going to see huge FPS gains like here and here. But in most cases the Phenom II is not going to bottleneck two 6970s too much, and if it does it will be like getting 80 FPS instead of 90 FPS, to the point where a bottleneck doesn't really matter.
Hey something that makes since. He is absolutely correct. For gaming unless you play one or 2 games out there on ultra settings the game itself will be the first bottleneck. Then on those games that are super graphics loaded, maybe difference between 90 and 80fps.

Quote:
^^ this, even only 1 6970~
That would be absolutely useless. Dis abling cores will not net you a higher OC on a Thuban. Unless temperatures are a huge issue and in that case you shouldn't be overclocking. One 6970 would, of course, be no issue.
Edited by Chuckclc - 5/31/11 at 12:04pm
post #15 of 32
Thread Starter 
Quote:
Originally Posted by Chuckclc View Post
Hey something that makes since. He is absolutely correct. For gaming unless you play one or 2 games out there on ultra settings the game itself will be the first bottleneck. Then on those games that are super graphics loaded, maybe difference between 90 and 80fps.



That would be absolutely useless. Dis abling cores will not net you a higher OC on a Thuban. Unless temperatures are a huge issue and in that case you shouldn't be overclocking. One 6970 would, of course, be no issue.
Crysis, STALKER, BC2, and BF3 when it comes out should all run maxed least with 60? I know BF3 can't be said.
    
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post #16 of 32
Does Crysis utilise SLI and Crossfire? Thought I saw somewhere it didnt but I am probably mistaken, honestly never played it. Others would be fine.
post #17 of 32
Thread Starter 
Quote:
Originally Posted by Chuckclc View Post
Does Crysis utilise SLI and Crossfire? Thought I saw somewhere it didnt but I am probably mistaken, honestly never played it. Others would be fine.
It does. 1080 should get 60 FPS and that's all that's needed.
    
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post #18 of 32
In synthetic benchmarking, i would chose the PHII x6 1090T, if your doing a lot of 3D rendering and multitasking, then a 6 core, but the fact of the matter is, most games will run on 2 cores, and only a select few run on all 4 cores of a quad core, let alone a 6 core, so i think, you should either grab an X58 board with an i7 940 (my personal choice), or a Lynnfield platform with a i7 875K ( iffy, not really worth it any more) a sandy bridge i7 2600K, or i5 2500K ( still iffy, but not as bad, personally i would grab an i7 but argumentatively, most games dont take on the extra 4 threads and will only use 4 out of the 8 threads) or if you still want AMD, grab a PHII x4 965 BE and overclock it to like 4 - 4.5GHz to try to pump up that performance. either way, most CPU's will be a bottle neck to CF 6970's, in my opinion, bulldozer isnt too far off, i say wait and see what happens, i think that AMD will make quite an exciting product.
    
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post #19 of 32
I are bottlenecked

and bulldozer delayed

That being said, x4 phenom II still works great and should be ok for crossfire 6970
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post #20 of 32
Quote:
Originally Posted by trulsrohk View Post
I are bottlenecked

and bulldozer delayed

That being said, x4 phenom II still works great and should be ok for crossfire 6970
you have quads , that is a jelly setup, except your cpu
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