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GTX 470 Memory overclocking - Page 2

post #11 of 13
Quote:
Originally Posted by CL3P20 View Post
Just keep in mind your already near the limits of the cards capabilities on air/water..W/C'ing will mainly bring a reduction in voltages, more so than increasing headroom for OC.

*dont bother with memory voltage mods either..they are a waste on these cards. IC's are crap.
A stock 470 is near its limits ... what ?

It's like the best OC'ing card in the known universe, with TONS of headroom. I can pull off a 40% overclock on my core, and I'm not even water, and these aren't even 'real' 470's.

And watercooling definitely increases OC'ing headroom on Fermi cards, why do you think so many people do it?

Also, the reason the memory doesn't OC that well is the weak memory controller, not the IC's themselves.
    
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post #12 of 13
Yeah, focus on the core more so than the memory. The higher I push the memory the lower I have to push the core.

The thing is though, your core will hit a wall, so leaving the memory at stock levels or even reducing it below that, will not improve that wall that your core hits.

For me, I'm not really sure what the wall is...I've been having a weird issue. When I push the core more and drop the memory a bit, I get a nividia driver crash (usually only when loading things) and then it comes back up and works fine, but this only happens after trying to run Heaven and its driver having a fatal error... Never had a artifact issue, just driver crashing issues...
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post #13 of 13
Thread Starter 
Quote:
Originally Posted by MoBeeJ View Post
It IS important, but it will not yield much higher results. Fps wise will not increase much between +100mhz on core or +100mhz on mem. Maybe because fermi has enough bandwidth and speed so it doesnt need high frequency. Also even if your mem oc is somehow stable try to bench games, if you see decrease in performance lower your mem oc a bit. Fermi has a complex way of communicating with the memory, if the data is corrupted it will send it back = lower fps.
Thank you bro! +rep

Quote:
Originally Posted by brettjv View Post
Yes, on a 470, the way I described is the way you want to do it. Get as much out of the core as you can, then add whatever memory OC on top of that that you can get away with. The core OC is by far the more important of the two, esp. on a 470 which already has a plethora of memory bandwidth. The reason you do the core first is that OC'ing the memory first may jeopardize your ability to get the core as high, which is not what you want.
Ok man will do!


Quote:
Originally Posted by CL3P20 View Post
Just keep in mind your already near the limits of the cards capabilities on air/water..W/C'ing will mainly bring a reduction in voltages, more so than increasing headroom for OC.

*dont bother with memory voltage mods either..they are a waste on these cards. IC's are crap.




Quote:
Originally Posted by CookieSayWhat View Post
Yeah, focus on the core more so than the memory. The higher I push the memory the lower I have to push the core.

The thing is though, your core will hit a wall, so leaving the memory at stock levels or even reducing it below that, will not improve that wall that your core hits.

For me, I'm not really sure what the wall is...I've been having a weird issue. When I push the core more and drop the memory a bit, I get a nividia driver crash (usually only when loading things) and then it comes back up and works fine, but this only happens after trying to run Heaven and its driver having a fatal error... Never had a artifact issue, just driver crashing issues...

But can my PSU take it no?
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Intel Core i5 3570 | 4.0GHz | 1.1v Asrock Z77 Extreme6 Inno3D GTX 470 Hawk | 850 | 1800 | 3600 | 1.1v Corsair Vengeance Pro 8GB | 2x4GB | 9-9-9-24 |... 
Hard DriveHard DriveHard DriveOptical Drive
Corsair Force 3 F60 Seagate Barracuda 250GB Western Digital Caviar Blue 320GB Samsung DVD-RW 
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