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Any point in overclocking the memory?

post #1 of 11
Thread Starter 
Hey, so I just got to 860 MHz core on my 768MB version 460s
and wanted to know if its any use trying to overclock the memory. It's already at 1900 (3800) so I was just wondering if I should push it higher. I heard that overclocking memory doesn't really affect performance anyways so I wanted to know what you guys thought. Thanks.
Edited by axizor - 3/9/11 at 8:24pm
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post #2 of 11
ok you have the 768mb 460... on that card it makes a big difference from what i have heard
post #3 of 11
Thread Starter 
Quote:
Originally Posted by hodgoes2001 View Post
ok you have the 768mb 460... on that card it makes a big difference from what i have heard
Thanks for pointing that out. I'll edit my OP. Yeah... I ended up going with the 768s to save $40 and because my monitor is 1680.1050 (and because an overclocked 768 is better then a stock 1gb)
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post #4 of 11
Of all Fermi's that card is likely to benefit the most from a memory OC due to the relatively narrow bus attached to a powerful core.

I would still, however, OC the core first as much as it'll go, then add whatever mem OC on top of it that you can get away with.
    
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post #5 of 11
Thread Starter 
Quote:
Originally Posted by brettjv View Post
Of all Fermi's that card is likely to benefit the most from a memory OC due to the relatively narrow bus attached to a powerful core.

I would still, however, OC the core first as much as it'll go, then add whatever mem OC on top of it that you can get away with.
Would I be testing the memory OC stability the same way I test the Core clock stability? (OC Scanner/Furmark type benchmarks & Other benchmarks and games (DX11).
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post #6 of 11
yeah. or take a look at OCCT it has a great graphics stability test and another memory test for nvidia gpus
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post #7 of 11
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Quote:
Originally Posted by clark_b View Post
yeah. or take a look at OCCT it has a great graphics stability test and another memory test for nvidia gpus
Should I enable "Error Check" in OCCT? And for artifacts would I just have to use my eyes to detect them?
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post #8 of 11
yeah enable it. it'll find the artifacts for you
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post #9 of 11
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Quote:
Originally Posted by clark_b View Post
yeah enable it. it'll find the artifacts for you
k. its normal the OCCT uses less GPU usage the donut isn't moving (like the Non Error Mode) donut and isn't really fullscreen? this doesn't seem like a very good way to test stability if its normal.

if error mode is off, my gpu usage is high (normal) and occupies full screen.
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post #10 of 11
The easiest way to test memory clocks imo is to pop on an artifact test for 1 minute, if you get no artifacts & you think its a half decent OC, turn on your current game and play it, look out for artifacts, if you see any, shut it off, and move it back 5-10, or vice versa if you see none. GPUTool is pretty archaic, but its very sensitive in checking for artifacts, if you want to make sure its 'perfectly' stable.

Performance-wise, its card-based, my last card (4850) got way more fps:OC from memory then out of core, and my current, all core, gets hardly anything from memory OCs, even tho they both have the exact same gpu. But you can't really complain about more bandwidth if you can get it
Edited by Asmodean - 3/10/11 at 2:25pm
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