![]() Despite the minor clockspeed differences between our 270 cards, the Asus card is drawing a total of 18W at the wall more than the HIS card. To that end the 270X at 267W at the wall is drawing more power than the 7870 and GTX 660, but less than the GTX 760 and quite a bit less than the 280X. ![]() This goes both for comparing the 270 series to the 7800 series on a hardware basis, and comparing it to the 7700 series on a price/performance basis. First and foremost, because AMD is still on Pitcairn and still on TSMC’s 28nm process, power consumption has nowhere to go but higher in tandem with performance. Moving on to load power consumption, there are a few things to look at. At 78W for our 270X and 80W for our 270 cards, idle power consumption is fairly average, though for what it’s worth nothing here can touch the GK106 based GTX 660, which consistently measures a few watts lower at the wall. Starting as always with idle power consumption, nothing has changed since the 7800 series. Unlike the 280X and 290 series these are very narrow ranges – just 25MHz to 50MHz – so our clockspeed uncertainty here from the coarse reporting is similarly low. All of our cards report that they’re at their boost state throughout their entire benchmark runs. Looking briefly at clockspeeds, as these are all PowerTune Boost 1.0 cards, the boost capabilities are very coarse grained.
0 Comments
Leave a Reply. |