10-29-2006, 03:29 AM
Here are the results of my initial overclocking attempts. I used the Free Edition of 3DMARK05 to benchmark the changes. I know it's not a completely accurate representation of 3D performance, but it's a good enough way to check performance between changes in clock settings.
Stock settings
420 MHz core / 400 MHz memory
40°C idle temp
3948 3DMARK05 score
40°C after benchmark
Attempt 1
431 MHz core / 410 MHz memory (+2.6% / +2.5%)
40°C idle temp
4071 3DMARK05 score (+3.1%)
40°C after benchmark
Attempt 2
441 MHz core / 420 MHz memory (+5.0% / +5.0%)
40°C idle temp
4138 3DMARK05 score (+4.8%)
40°C after benchmark
Attempt 3
451 MHz core / 451 MHz memory (+7.4% / +12.8%)
40° idle temp
4344 3DMARK score (+10.0%)
40° after benchmark
I left off there. I haven't really done any stress testing at the 451/451 overclock, but I don't foresee any trouble hitting 500/500 overclock on the stock heatsink. For reference, the 7600GT is clocked at 560/700.
Stock settings
420 MHz core / 400 MHz memory
40°C idle temp
3948 3DMARK05 score
40°C after benchmark
Attempt 1
431 MHz core / 410 MHz memory (+2.6% / +2.5%)
40°C idle temp
4071 3DMARK05 score (+3.1%)
40°C after benchmark
Attempt 2
441 MHz core / 420 MHz memory (+5.0% / +5.0%)
40°C idle temp
4138 3DMARK05 score (+4.8%)
40°C after benchmark
Attempt 3
451 MHz core / 451 MHz memory (+7.4% / +12.8%)
40° idle temp
4344 3DMARK score (+10.0%)
40° after benchmark
I left off there. I haven't really done any stress testing at the 451/451 overclock, but I don't foresee any trouble hitting 500/500 overclock on the stock heatsink. For reference, the 7600GT is clocked at 560/700.