Asus P5GDC-V Deluxe
Maximum Stable Overclock: 238MHz
952MHz Bus / 19% Delta
CPU Frequency:
18x238MHz = 4284MHz
| Stock | Overclock | Delta | Delta % | |
| Sandra CPU Dhrystone ALU (MIPS) Sandra CPU Whetstone FPU (MFLOPS) Sandra CPU – ISSE2 |
10466 4316 7502 |
12387 5160 8908 |
1921 844 1406 |
18.4% 19.6% 18.7% |
| Sandra Memory Float (MB/s) Sandra Memory Int (MB/s) |
4424 4422 |
5160 5157 |
736 735 |
16.6% 16.6% |
| PCMark 04 | 5316 | 6229 | 913 | 17.2% |
| 3DMark 05 | 2611 | 2654 | 43 | 1.7% |
| Half-Life 2 – Avg FPS Half-Life 2 – Low FPS Half-Life 2 – High FPS |
60.06 31 185 |
59.65 28 202 |
-0.41 -3 -17 |
-0.78% -9.7% 9.2% |
Taking a quick look at the results, it’s pretty plain to see that overclocking has nearly no effect on 3D performance testing. This shouldn’t be too surprising since today’s games are more dependent upon the capabilities of the video adapter and not the necessarily the entire system (i.e. CPU and memory speeds). But, it is surprising to see almost no effect since you would assume a faster bus speed would give some decent improvement.
Overclocking performance gains of roughly 18% benefits memory and CPU intensive processes. This would have a clear impact on those users doing activities like heavy computation, rendering, and media editing.
Environment:
| Stock | Overclocked | Delta | |
| CPU (Idle) | 9C 48F |
15C 59F |
6C 11F |
| CPU (Load) | 29C 84F |
42C 108F |
13C 24F |
| System (Idle) | 2C 36F |
2C 36F |
0 |
| System (Load) | 2C 36F |
2C 36F |
0 |
Ambient = -11C / 12F
Notes:
I was able to get Windows booting up to 243MHz before getting a no POST at 244MHz. From 239-243MHz testing was not stable, occasionally SuperPI would finish, but fail in 3DMark05 or Sandra CPU. No amount of fiddling seemed to make things stable. 238MHz was the highest stable setting for the Asus P5GDC-V.
