Since power consumption is a big deal these days, we ran some simple
power consumption tests on our test beds. To measure
idle usage, we ran the system at idle for one hour on the desktop with
no screen saver and took the measurement. For load measurements, POV-Ray 3.7 Beta 35a was run on all cores to make sure each and every processor
was at 100% load.
Results: The AMD Phenom II X4 and X6 processors that we tested are all 125W TDP parts and all perform roughly the same when it comes to power consumption. We just switched over to Corsair HX850W power supplies on the test bench and they are amazing 80 Plus Gold certified units. Thanks to the highly efficient power supplies and the Corsair P64 SSD on the test systems the idle and load usage numbers might shock many of you considering these are all high-end processors. The AMD Phenom II X6 processors use ~35W less power at idle than an Intel Core i7 quad-core processor and 30-40W less at load. AMD looks strong when it comes to power consumption!