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Power consumption is a hot topic of conversation in recent months as people are paying more attention to their electricity bills and overall energy footprint.
We used a calibrated meter to measure the power at the wall.
Firstly we analysed the power drain when all systems were at reference clock speeds (Core i5 2500k @ 3.3ghz, Core i7 2600k @ 3.4ghz, Core i7 2700k @ 3.5ghz and FX 8150 @ 3.6ghz).
All systems were loaded with Cinebench R11.5 64 bit.
The Core i7 2700k consumes basically the same power as the Core i7 2600k, which is not a shocker. We still can't get over the FX 8150 BE power consumption at reference clocks, almost 100watts more at the socket than the 2600k.
Next we increased the processors to 4.6ghz, but cranked the Core i7 2700k to 5ghz at 1.5 volts.
At 5ghz, the Core i7 2700k consumes 293 watts when loaded with Cinebench 11.5 64 bit. When the FX 8150 is clocked at 4.6ghz, it consumes 406 watts at the socket. The Intel Core i7 processors are certainly much more efficient.
Oh dear. AMD have lost this round again 🙁 nice review thanks.
It just keeps getting better.
I saw the price on scan last week and thought it was a bit much. For £10 it is a solid choice, especially as the architecture and engineering has improved over time. I would say these will overclock better, especially on phase and with high end water.
AMD havent answered this yet. what a disappointing year for them. just as well they bought out ATI.
Kick ass. I love my 2500k. running at 4.6ghz and more than fast enough for anything I need.
Its a great chip, but not worth moving from a 2600k to this. good for a new system build
Not very exciting but miles ahead of anything else out there. Intel own the market
I’m not sure that I know the difference between the 2700k and the 2600k? ANY 2600k will easily oc to the stock of the 2700k so unless they are binning the higher clocking chips and guaranteeing the 2700k will oc higher than the 2600k does then its a strange distinction between the two?
Personally, I’d stick with 2600K right now if you already have it, but if you’re building a new system, why not make the move to 2700K.
This CPU does not excite me in any ways when it comes to results, i mean come one 100 Mhz boost can be had with a 2600k without a sweat. What this CPU actually brings is the price drop.
Hi . i’m just waiting for my build with 2700k to be finished but review has me worried as you failed to get a good OC on the same mobo as my build is using, weve got the corsair hydo 80 as cooler but as we were wanting 5ghz the reviews worried us
BTW (no HT) comp is for computer chess so no HT is needed for it
Anyone know why OC failed with that mobo(Gigabyte Z68AP-D3 ) ?
Hi Venus,
Not sure what happened, but I couldnt get good stable overclocks above a certain speed. You might do better with slightly different components in the system build.
the only differences might be hydo80, as we need a reasonably priced mobo with on board graphcs and the one that failed in review has been exellent with 2600k stable at 4.8 on air so we were expecting 5ghz on liquid not falure at 4.6
any advice appreciated
we wont be using HT as its for computer chess but wanted the extra speed the 3.5 ghz should offer
i7 2600k @ 5.2ghz! on Asus P8Z68-V PRO Z68 Gskill 8gb 2100mhz , only limited by reaching 81degrees , with better cooling could go higher!!!
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