Overclocking an MSI 8800 GTS 512 OC

[snowsurfer]

Hey guys,

I have been trying to milk the last ounce of oomph out of my ageing GPU, a factory overclocked 8800 GTS 512 from MSI, and just wanted to run the numbers by you.

Factory OC settings are: 678 core / 1728 shaders / 972 memory
I managed to get to (without artifacts, fan at 100%): 734 core / 1870 shaders / 1030 memory

The GPU doesn't get too hot under load at the new OC (63-65ºC), but if I push it more I get artifacts in my games.

So how does that sound?

Thanks!

I managed to push the memory to 1081 and it is stable and working well. It was obviously either the core or the shaders that were introducing the artifacts.

 

[synergy]

I think that's actually a good clock. I know with my 8800gt I was only able to hit 705 and 1000. Anything higher than that produced artifacts.

 

[ricanflow]

Sounds good.

 

[philbar71]

hmm, i dont know. my old 9800GTX could hit 860MHz, and about 1500 shader. the mem was crappy and would not go above about 1250Mhz. but you might be able to get a little higher clocks.

try for 800Mhz core with the shaders unlinked and running at about 1400MHz, test it with Furmark.

FurMark: Graphics Card Stability and Stress Test, OpenGL Benchmark and GPU Temperature | oZone3D.Net

 

[ricanflow]

9800GTX is different than an 8800GTS 512....9800's clock higher.

 

[philbar71]

well, my old friend had one that would do 820MHz on the core. stable enough for benchmarking and games. he should be able to hit 800MHz for a benchmark or two.

 

[ricanflow]

Thats one of the really good ones, many cant even break 800.

 

[philbar71]

must have been, it was pretty fast tho. at times it would match my 9800GTX (this is when i had my pentium D) too bad he sold it for $80

 

[snowsurfer]

Thanks guys. I'll unlink the shaders and the core and see where that takes me. The memory seems to go even higher than the 1081 I posted though. I do feel a definite improvement in almost all games I play with the new OC profile.

Unlinking the shaders and the core, leaving the shaders at 1700, and I'm up to 780 core stable, gonna push it a bit more tomorrow.

 

[ricanflow]

I prefer my shaders to be higher versus the core, i find i actually get better performance and less heat that way.