1. Introduction2. AMD FX8370E3. Methodology and Testing (Page 1)4. Testing (Page 2)5. Testing (Page 3)6. Testing (Page 4)7. POV-RAY Testing8. Power Draw and Temperatures9. Closing Thoughts10. View All Pages

Power draw

So how much power does it take to drive these test systems?

At the wall socket they draw 69W-73W whilst idling in the Windows desktop which seems pretty good but is higher than I would expect to see with a comparable Core i7 system.

Under load in a CPU test (where the graphics card plays little part) the FX-8350 system drew 210W, an increase of 137W. The overclocked FX-8350 required 215W, an increase of 146W, which is pretty much what you expect from a 125W TDP processor.

By contrast the FX-8370E system pulled 160W under load, an increase of 87W from idle. This means the FX-8370E requires 50W less than the FX-8350 which is much less than I expected, and certainly far greater than the difference between the 95W and 125W TDP of the two CPUs.

Temperatures

     

A reduction in power draw and TDP should be evident in the temperature figures that you measure within the CPU. The CPU package temperature for both FX-8350 and FX-8370E was in the range 36-39 degrees which means the CPU cooler was doing its job and all was well.

The HW Monitor utility reported a CPUTIN (CPU Temperature Index) figure of 47 degrees under load for FX-8350 that rose to 51 degrees when the CPU was loaded, whereas the FX-8370E ran at 23 degrees which is 24 degrees cooler.

That's an impressive reduction in temperature.

Become a Patron!