- Joined
- Oct 26, 2004
- Location
- Bay Area, CA
Alright, this is tad late (cough, try over 4 months) but I figured I'd put it up before I cleared out my Futuremark ORB cache.
I wanted to see just how much of an impact extra overclocking could have on actual hardware performance, and here's what I found using 3DMark05 with default settings on a Pentium 4 640 with 1024MB of RAM.
Cooling is provided by a STASIS IceStorm NV6800C5 Setup, BIOS is stock GT, voltage stock GT.
Stock 6800GT PCIx16 Board
Score: Core: Mem:
4916 350 900
5018 350 1000
5128 350 1100
5191 350 1200
5457 375 1200
5700 400 1200
5795 410 1200
5898 420 1200
5907 425 1200
6008 430 1200
6140 445 1209
Clearly from the results we can see that memory bandwidth only becomes a limited factor as the GPU clocks ramp up. The divendends in added performance really ramp up exponentially as you push the clocks on the NV40 to their limit. Having the memory bandwidth to back it all up becomes a factor past 400MHz it appears. These scores are with very old drivers, so I imagine scores, if done today, would be as much as 200-300 points higher.
Links to ORB data:
http://service.futuremark.com/compare?3dm05=760015
http://service.futuremark.com/compare?3dm05=693209
On a side note, in the same system, with a new 7800GTX (490/1300 EE Edition) and the new 64bit 7.7.7.7 Drivers, I've been getting around 7100 3DMarks.
I wanted to see just how much of an impact extra overclocking could have on actual hardware performance, and here's what I found using 3DMark05 with default settings on a Pentium 4 640 with 1024MB of RAM.
Cooling is provided by a STASIS IceStorm NV6800C5 Setup, BIOS is stock GT, voltage stock GT.
Stock 6800GT PCIx16 Board
Score: Core: Mem:
4916 350 900
5018 350 1000
5128 350 1100
5191 350 1200
5457 375 1200
5700 400 1200
5795 410 1200
5898 420 1200
5907 425 1200
6008 430 1200
6140 445 1209
Clearly from the results we can see that memory bandwidth only becomes a limited factor as the GPU clocks ramp up. The divendends in added performance really ramp up exponentially as you push the clocks on the NV40 to their limit. Having the memory bandwidth to back it all up becomes a factor past 400MHz it appears. These scores are with very old drivers, so I imagine scores, if done today, would be as much as 200-300 points higher.
Links to ORB data:
http://service.futuremark.com/compare?3dm05=760015
http://service.futuremark.com/compare?3dm05=693209
On a side note, in the same system, with a new 7800GTX (490/1300 EE Edition) and the new 64bit 7.7.7.7 Drivers, I've been getting around 7100 3DMarks.
