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SB - How high of a clock is high enough for gaming?

post #1 of 34
Thread Starter 
Anybody have a resource on sandy bridge CPUs at stock, 4 GHz, 4.5 GHz, 5 GHZ, etc. with gaming? Just wanting to know how hard I should push my 2500K when I get it in a few days to get the best performance and life out of it. SHANKS!
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post #2 of 34
With a single 5870 you probably won't even need a 4Ghz OC in most titles, assuming you're using typical graphical settings @ 1080.
    
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post #3 of 34
I can show you stock vs 5Ghz in Cinebench of my own CPU:


Stock 3.3Ghz:


5Ghz:

Edited by Alex132 - 5/21/11 at 1:55pm
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post #4 of 34
Thread Starter 
Quote:
Originally Posted by BallaTheFeared View Post
With a single 5870 you probably won't even need a 4Ghz OC in most titles, assuming you're using typical graphical settings @ 1080.
Well I'm at 3.2 on a q8400 and Crysis is TERRIBLE. BC2 is decent but still on the low end of playability. I'm looking to get max settings on everything at 1080 so does only an extra 800 Mhz make that big of a difference?
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post #5 of 34
Quote:
Originally Posted by Doodlebro View Post
We're talking overclocking here... Anybody have a resource on sandy bridge CPUs at stock, 4 GHz, 4.5 GHz, 5 GHZ, etc. with gaming? Just wanting to know how hard I should push my 2500K when I get it in a few days to get the best performance and life out of it. SHANKS!
Depends on the game. Some games are more heavily dependent on the CPU, while others need more GPU power.

4.5ghz is so easy to achieve on Sandy Bridge. I doubt you would be able to actually see a real world difference between 4.5ghz and 5ghz unless you ran benchmarks.
post #6 of 34
Just set it between 4.2-4.5ghz and you won't have to worry about anything.
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post #7 of 34
C2Q is quite a bit slower per clock cycle than Sandy Bridge, at 3.2GHz a SB chip will still be quite a bit faster than your C2Q at 3.2Ghz.

For the best idea of the kind of performance you can expect fire up BFBC2 with MSI afterburner running in the background tracking gpu usage, play for a few minutes online and then tab out and check your gpu usage. If you're around 99% most of the time than a cpu upgrade won't help you here, however if you're getting a roller-coaster looking graph on your gpu usage and it never seems to be working at full capacity (cpu bottleneck) you should see gains based on how badly your current cpu is bottlenecking your gpu.
    
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post #8 of 34
Quote:
Originally Posted by thealex132 View Post
I can show you stock vs 5Ghz in Cinebench of my own CPU:


Stock 3.3Ghz:


5Ghz:
Should overclock the memory a bit, at 5Ghz you should be able to get 8+ for the cpu score

OP, even with all settings on auto you should be able to raise the multi & OC to 4ghz + pretty easily with good voltage & temps.
    
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post #9 of 34
Quote:
Originally Posted by FtW 420 View Post
Should overclock the memory a bit, at 5Ghz you should be able to get 8+ for the cpu score

OP, even with all settings on auto you should be able to raise the multi & OC to 4ghz + pretty easily with good voltage & temps.
Look at my RAM, cant get even CL9 1600Mhz stable so this is the best I can do (was 1333 CL9 stock)
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post #10 of 34
Quote:
Originally Posted by BallaTheFeared View Post
C2Q is quite a bit slower per clock cycle than Sandy Bridge, at 3.2GHz a SB chip will still be quite a bit faster than your C2Q at 3.2Ghz.

For the best idea of the kind of performance you can expect fire up BFBC2 with MSI afterburner running in the background tracking gpu usage, play for a few minutes online and then tab out and check your gpu usage. If you're around 99% most of the time than a cpu upgrade won't help you here, however if you're getting a roller-coaster looking graph on your gpu usage and it never seems to be working at full capacity (cpu bottleneck) you should see gains based on how badly your current cpu is bottlenecking your gpu.

You can track GPU usage in realtime, just tell Afterburner to display GPU usage in the OSD.

I'm not sure playing online is the best idea to evaluate a CPU bottleneck, as other factors come into play, mainly eventual network / server congestion.
Edited by tpi2007 - 5/21/11 at 3:18pm
 
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