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A bottleneck inquiry: AMD with high end GTX 5xx cards - Page 2

post #11 of 19
Quote:
Originally Posted by ronnin426850 View Post
True, but he's asking for single 580, no? At least that's what I understood..
PhenomII quad @4Ghz won't bottleneck a single 580
Right, I stated in my post a single 570/580 or similar will be fine...he also mentioned a 590 which would be pushing it assuming the sli functions similar to 2 separate cards considering my 570's were heavily bottlenecked.
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post #12 of 19
Thread Starter 
Thanks for the helpful posts.

I'll be sticking with a single card more than likely. SLI GTX 460's have crossed my mind too but would have to do a platform upgrade for that considering there are no AMD boards that have SLI capability in mATX.

Also I prefer to keep my sound card rather than using onboard.
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post #13 of 19
Do not get a Fermi unless you have SB due to their low gpu driver issues on non i7 CPUs. You'll be able to max out an AMD GPU just fine though and honestly, a 6950 unlocked to a 6970 @ 950Mhz for only $250 seems like a much better deal than any fermi. I'd only get fermi if you had triple 30" needing 3GB of VRAM tbh. You can also add another 6950 in 6 months for ~$150 when the new cards come out and get near 100% scaling. A 6970 is about equal to two 460s btw.

Some of the posts here are incorrect. You're not going to be able to max out even a 570 even with a 1090T @ 4.2. Nvidia's drivers only seem to like i7s. A few rare games like Metro 2033 might be able to max out the card but most games will see low GPU usage. You can even max out 2 6990s with your CPU without a problem btw. Nvidia usually requires a lot more CPU power than AMD cards, especially for scaling.
Edited by PoopaScoopa - 7/24/11 at 1:19pm
post #14 of 19
Thread Starter 
Quote:
Originally Posted by PoopaScoopa View Post
Do not get a Fermi unless you have SB due to their low gpu driver issues on non i7 CPUs. You'll be able to max out an AMD GPU just fine though and honestly, a 6950 unlocked to a 6970 @ 950Mhz for only $250 seems like a much better deal than any fermi. I'd only get fermi if you had triple 30" needing 3GB of VRAM tbh. You can also add another 6950 in 6 months for ~$150 when the new cards come out and get near 100% scaling.
I appreciate your feedback, but there's no way in hell I'm ever buying an AMD card ever again.
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post #15 of 19
Quote:
Originally Posted by Kvjavs View Post
I appreciate your feedback, but there's no way in hell I'm ever buying an AMD card ever again.
Fair enough. I would advise against using fermi on current AMD CPUs at the moment then. Maybe BD will do better or maybe Nvidia driver devs have some sort of bias. They don't even like C2Q either.
post #16 of 19
Thread Starter 
Anyone else?
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post #17 of 19
A GTX 580 SLI will bottleneck a 955, I tried it, I ran MSI Afterburner and both cards were only at 50% all the time so don't bother. A single GTX 580 would be fine though, but SLI requires a more powerful CPU.
    
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post #18 of 19
Quote:
Originally Posted by Chrono Detector View Post
A GTX 580 SLI will bottleneck a 955, I tried it, I ran MSI Afterburner and both cards were only at 50% all the time so don't bother. A single GTX 580 would be fine though, but SLI requires a more powerful CPU.
You're doing it wrong.

"GPU will bottleneck CPU" => means GPU is too slow and full capacity of CPU won't be reached.
"CPU will bottleneck GPU" => means CPU is too slow, and GPU won't reach 100%
"CPU is bottlenecked by GPU" => means GPU is too slow
"GPU is bottlenecked by CPU" => means CPU is too slow.

In your specific case, it should say "A GTX 580 SLI will be bottlenecked by a 955"
-OR-
"A 955 will bottleneck a GTX 580 SLI"
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post #19 of 19
Maybe best to get a 2500K + mobo and GTX560
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