Page 1:Spending It All
Page 2:CPU And Cooler
Page 3:Motherboard And Memory
Page 4:Graphics Card And Hard Drive
Page 5:Case, Power Supply, And Optical Drive
Page 8:Test System Configuration And Benchmarks
Page 9:Benchmark Results: Synthetics
Page 10:Benchmark Results: Audio/Video
Page 11:Benchmark Results: Productivity
Page 12:Benchmark Results: Call of Duty: Modern Warfare 2 And Crysis
Page 13:Benchmark Results: DiRT 2 And S.T.A.L.K.E.R.: Call Of Pripyat
Page 14:Power Consumption And Temperatures
Page 15:Performance Summary, Efficiency, And Conclusion
Power Consumption And Temperatures
A long overdue change was made, and December’s stock $500 PC was tested as most of you would use it, with power saving features enabled. However, during overclocking, Cool’n’Quiet was disabled, the 120 mm exhaust fan raised from low to high speed settings, and the CPU fan’s target speed increased from 50% to 90%.
Loading all CPU and GPU cores with FurMark + Prime95 gives us a good look at the maximum potential power draw the system could face.
The use of a balanced power scheme and energy saving features results in much lower idle and CPU load consumption, but the switch to a more efficient power supply also must be factored into the equation.
Estimating 82% efficiency for the EarthWatts 380 W equates to a peak output draw during full CPU and GPU load of roughly 280 W for today’s overclocked system.
We used the ASRock M3A770DE’s socket sensor for the CPU, and charted peak temperatures above ambient. There’s really too much going on here to pinpoint a meaningful comparison to the prior $400 PC. The stock $500 PC has a lower VID CPU, better CPU cooler, and enabled power saving features, yet the former machine had greater chassis air flow and a higher target rotational speed on its CPU fan.
One thing is clear: the four-core overclock in September was completely limited by CPU temperature, while December’s overclock is mainly limited by the system builder’s unwillingness to pump higher voltage into the CPU.
- Spending It All
- CPU And Cooler
- Motherboard And Memory
- Graphics Card And Hard Drive
- Case, Power Supply, And Optical Drive
- Test System Configuration And Benchmarks
- Benchmark Results: Synthetics
- Benchmark Results: Audio/Video
- Benchmark Results: Productivity
- Benchmark Results: Call of Duty: Modern Warfare 2 And Crysis
- Benchmark Results: DiRT 2 And S.T.A.L.K.E.R.: Call Of Pripyat
- Power Consumption And Temperatures
- Performance Summary, Efficiency, And Conclusion