Power Consumption

Power consumption, like performance, isn't surprising here. I noticed I couldn't get Cool'n'Quiet to properly underclock the Phenom II X4 980 BE when idle, resulting in a constant 3.7GHz operating frequency and thus higher than expected idle power numbers. I updated our test platform to the latest public BIOS but I suspect this is something that'll be addressed in a future update.

Idle Power Consumption

Load Power Consumption

I also measured power at the ATX12V connector to give you an idea of what actual CPU power consumption is like (excluding the motherboard, PSU loss, etc...):

Processor Idle Load (Cinebench R11.5)
Intel Core i7 2600K @ 4.4GHz 5W 111W
Intel Core i7 2600K (3.4GHz) 5W 86W
AMD Phenom II X4 975 BE (3.6GHz) 14W 96W
AMD Phenom II X4 980 BE (3.7GHz) 35W 104W
AMD Phenom II X6 1100T (3.3GHz) 20W 109W
Intel Core i5 661 (3.33GHz) 4W 33W
Intel Core i7 880 (3.06GHz) 3W 106W
Gaming Performance Final Words
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  • DMisner - Tuesday, May 3, 2011 - link

    Part of me hopes BD gets delayed so AMD will release a Phenom II X4 @ 4GHz
  • tipoo - Tuesday, May 3, 2011 - link

    ...But why? It would just look good on paper, BD is where their real performance aspirations are.
  • DMisner - Tuesday, May 3, 2011 - link

    for the sheer novelty of it. Thats all.
  • Belard - Tuesday, May 3, 2011 - link

    There is no novelty to these issues. Its business. Buy any AMD X4 965+ and OC to 4Ghz.... thats the Novelty part.

    Having ALL your best products - even those costing almost $300 that is slower than the competitions $200 lower-end CPUs is not fun.

    I have a #2 desktop that is rendering videos daily (converting my OLD VHS) - and I'll need to upgrade its mobo/CPU to speed up the process. A NEW CPU will speed things up at lest 4-6x. (Its an OLD AMD X2).

    The Intel's use less power, there is that odd-ball combination that allows the GPU of the intel be used to help render video faster.

    So yeah, when looking at a $150~200 CPU, its performance that counts - not MHz.

    Still, for most people - any $75~100 CPU will DO just fine. Including gaming.
  • GullLars - Wednesday, May 4, 2011 - link

    With a $20-30 aftermarket cooler, you can hit 4GHz while undervolting a x50+ Phenom II. I haven't tried Athlon II's, but i'll be upgrading my father's Athlon X2 7550 to an Athlon II x4 645 and donate my old 1066 CL5 DDR2 sticks to it, so i guess i'll try hitting 4GHz on that too just for fun with a Cooler Master Hyper 212 Plus.
    My 1090T runs F@H smoothly at 4GHz with stock volt (Noctua NH-D14 cooler).
  • JonnyDough - Thursday, May 5, 2011 - link

    I agree.

    Considering that the AMD Phenom II X6 1100T is only $54 more and beats the new chip in most benchmarks while using less power under load (using max turbo @ 3.7, same clocks as the new 980 BE) I'd say that this new 4 core is a poor value comparatively.
  • JumpingJack - Sunday, September 21, 2014 - link

    Hindsight is 20/20, it didn't work out quite as people wanted....
  • StrangerGuy - Tuesday, May 3, 2011 - link

    I'm sure the PhII is already stuck at 3.8GHz at reasonable voltages and has been this way for a long time.

    I wonder how AMD feels when the mobile i7-2820QM is just as fast as their 4.2GHz OCed Phenom II X4. Bulldozer single-threaded performance and power consumption has to be at least the same as Nehalem to stand a fighting chance.
  • khimera2000 - Tuesday, May 3, 2011 - link

    probably the same way Intel feels about AMD's video cards.
  • Belard - Tuesday, May 3, 2011 - link

    You ARE kidding, right?!

    You can already OC to 4Ghz. And it will STILL be slower than i5-2400 ($190) which runs at 3.1Ghz.

    Clock Speed doesn't mean then end-all. Remember the says of AMD64 vs P4? Even at 3~4Ghz, the $1000 P4 Extreme Editions were still SLOWER than AMD's 2.0~2.4Ghz $200~300 CPUs.

    The performance wouldn't be so much an issue *IF* that i5-2400 was selling for $400, but its not. Its selling at the same price with a actual performance benefits.

    The i3-2100 (I hate these stupid intel model numbers) = $125 and puts it on par with the AMD-PII 955 ($140) - which is an upper end AMD part... going against an intel bottom end Core X CPU.

    Bulldozer needs to be OUT NOW. AMD makes great products, but they are late to the party.

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