Okay finally done with the testings
Objective:
To find if increasing the PCIe frequency improves performance
Test bed:
Q6600 @ 3.15ghz
4x1gig ram @ 700mhz
Xfx 8800GTS 320mb XXX
GA-P35C-DS3R
Procedures:
Set PCIe to 100mhz. Set vidcard clock speeds to stock (580/1500/900). Run 3dmark06 5 times. Then overclock to 665/1618/1000 and restart pc. Run 3dmark 5 times. Repeat for 110mhz and 120mhz.
Results(using 3dmark06):
100mhz PCIe:
580/1500/900
Score:11623
665/1618/1000
Score:12746
110mhz PCIe:
580/1500/900
Score:11624
665/1618/1000
Score:12792
120mhz PCIe:
580/1500/900
Score:11636
665/1618/1000
Score:12807
Highest clock speed(core only)*:
100mhz:665mhz, Score-12746
110mhz:N/A
120mhz:675mhz, Score-12853
*Note this is done by COD4. I ran the whole SP COD4 with the overclocked settings. If it crashed, artifacted, or freezed, I lowered the core clock speeds. I did not want to overclock the Shader clock and memory clock any further.
Conclusion:
Setting the PCIe higher than 100mhz does increase performance slightly. If raising the PCIe does not cause instability, it may be worth it. I'm sure I could raise the memory clock higher, but I feel that 1000mhz is a bit high already.
Well that shows it
Increasing the PCIe frequency increases performance slightly and improves overclocking. The temps never exceeded 70C.