The new AM3 Phenom II X3/X4 processors have a pretty good TDP (peak wattage) compared to the last flagship products. The tested Phenom II X4 810 and X3 720 processors have a fair TDP of 95 Watt (95 Watt peak, when all 4 cores in the processor are 100% utilized and stressed).
Much like the last-gen products, we have four active & independent cores here. Each core can be clocked down independently if not utilized, saving heaps of current. If the processors are temporarily inactive, they can pretty much put themselves in sleep-mode (clocking down). Hyper Transport will power down and a low-power stage is activated on the memory.
AMD's Cool'n'Quiet technology has been updated to revision 3.0 and provides even better power management. Keywords here are improved power tuning with additional performance states, and up to 50% less power at idle compared to Cool'nQuiet 2.0
As a result we notice our test platform peaked at roughly 170 Watts power consumption when we stress the CPU cores. Our system however idles merely at 80 to 90 Watts (integrated graphics processor used, not a dedicated one). As Paris Hilton would say, that's hot.
100% CPU load
Atom 330 | P45GC
Athlon X2 7750 BE
Phenom II X3 720 BE
Phenom II X4 810
Phenom II X4 940
Core 2 Q6600
Example: an 790GX based AM2+ motherboard with the Phenom II X4 810 and no dedicated graphics card installed (using integrated GPU), will idles at 85 Watt (power management activated, CPU throttles down). If we take that same configuration, yet now we stress the four CPU cores with Prime95 (stress test), our power consumption maxes out at 179 Watts. Once you add a dedicated graphics card to this configuration you'll see a increase of power consumption of roughly 50 Watts on average.
So, the CPU stressed shows fairly normal power consumption, and clocked down when idling it's actually pretty good.
AMD Phenom X4 945 and 955BE processor review|test Today AMD is releasing two processors in the Phenom II line-up, the Phenom II 955BE and the Phenom II X4 945 processor. Both processors can be considered and positioned in AMDs high-end segment, yet will be priced friendly. Yields are good, clock frequencies go up, performance goes up. And that's nice as the Phenom II series processors offer great performance for the money you have to lay down on the table. AMD Phenom series processors are slowly ripening, and are aging like fine wine (they get even better over time). Guru3D brings you an in-depth performance review and architectural overview on both these processors. Oh yea .. and we'll overclock the living daylights out of it as well.
AMD Phenom II X4 810 and X3 720BE review (AM3) A test on AMD Phenom II X4 810 and X3 720BE review socket AM3 processors. Socket AM3 Phenom II processors. Processors that are pretty much the same as the Socket AM2+ processors yet now with a DDR3 memory controller. DDR3 memory will allow the overall performance of the platform (your PC) to gain again a little in speed. Over the next few pages we'll tell you all about these new processors, their specifications and of course will check out performance.
AMD Phenom II X4 920 and 940 review test AMD Phenom II 940 and 920 test. AMD releases the new Phenom II processors. Now manufactured at a much smaller fabrication processes, 45 nanometer, and has different amounts of cache. The result... their processors can now run at 3.0 GHz fairly easy, run cool and still have enough headroom for a nice tweak or two. Pretty significant, pretty interesting.