GPU vs Memory: overclocking question

[MasterShazbot]

I've gotten back into the habit of over-clocking my PNY 5900.

it's normal specs are 400/850, and it runs fine at 450/900.

That's kinda like the GT version of the 5900s, as the 5900 Ultra (not 5950) runs at 450/850.

Which would affect my card's performance more, the GPU or the memory?

If I crank the GPU up anymore (to the 5950 ultra stats) my card will get hotter than 60-65+C and I get artifacts.

I'm not sure what the memory would do, or if that would burn up at higher speeds.

Right now its idling at 47C (GPU) 34C (ambient, memory?)

 

[MasterShazbot]

*bump*

 

[Nubius]

GPU gives you more performance, so if the GPU is already limited by heat/artifacting then it's time to raise up the memory as high as you can