These Core 17 WUs seem to be pretty sensitive to overclocking stability and may require some experimenting to achieve the best overclock.
I leave the memory clocks at the factory setting.
I am very careful when it come to overclocking. Unlike some who think if it doesn't crash its ok. I don't want anything producing any errors.
I kinda learnt that the hard way back in 2000/2001 when I didn't think about stability testing. I used winrar to compress a load of stuff, later on when I went to access it the files were damaged. Since then my goal has been to balance between speed, stability and noise.
People that don't think furmark is a very good test these days, I disagree. If you can hit a GPU core that hard and it doesn't throw any errors then that's a good sign.
I wouldn't use Furmark by its self as it doesn't load the VRAM or the memory controller but I do include it (or MSI Kombuster) in my range of testing.
My 7950 is currently eating through the Work Units at 1150 core 1600 Memory and the estimated PPD is 94000.
The memory is harder to check as it has built in error correction, so I found a speed that didn't show up any errors (1700mhz) then pushed it harder untill I got some nice on screen patterns (1750mhz) then chucked in a nice margin or error and settled with 1600mhz)
At the lower end I don't think memory speed increase really helps too much, but I wouldn't be supprised if going from 1250mhz to 1600mhz takes a couple of seconds off the frame time to make it worth while at +/- 4min 25 seconds TFP (90000+ PPD)
With my current settings my estimated TPF is 4 min 18 seconds. That's with no CPU folding.
