It seems to me there is something wrong with XbitLabs' power consumption method.Originally Posted by saaya
nice... at least something...
but im pretty dissapointed, i expected to finally read reviews today :/
well... idk... a 8800gtx is still enough to play games at 1920x1080 and max details and aa today... so it was expensive but if you think of not having to upgrade for what, almost 3 years? thats pretty damn impressive and the per year cost is only around 200$...
hahah awesome, keep em comming
its not an twimtbp game?
oh and did anybody notice the latyest xbitlabs article?
they meassured power consumption of the latest cards in very high detail, slot, first 6pin, second 6pin or 8 pin, in idle, under gaming load, occt load and blue ray playback load... very interesting!
and in this article they hint towards the 400 series being very hot and power hungry.
in fact they say something along the lines of "it might take a while until nvidia cards are perf/watt competitive again"
xbitlabs is veeery picky when it comes to power consumption of cpus, boards and vgas...
this cant affect their 400 review for the better... and the fact that they went back to the bench and checked the power consumption of all current cards shows that this is going to be a major part of their 400 series article, power consumption...
1. Is it possible to measure the amps for a certain slot?
2. The method assumes PSU provides exactly 3.3v/5v/12v at any time.
3. A GPU that performs CPU calculations, looks more power hungry, compared to another GPU that has no such ability. Though the total system power consumption might be a lot better with a GPGPU.
4. This method is very complicated, needs calibration, it's not widely acceptable and prone to errors.
5. The results are not comparable between different measurements even on the same system.
Xbitlabs didn't provide a total system power consumption at the same time.
The power consumption of GTX285 seems to be a lot more than HD4890.
XbitLabs measured the power consumption while playing Crysis Warhead at 170W for HD4890 and 245W for GTX285.
Though the official "Max Power Draw" for HD4890 is 190W and 183W for GTX285.
Do they imply that Nvidia announced a lot less max power consumption (20W) specs and ATI a lot more (20W)?
Most other power benchmarks seem to give lower power consumption for GTX285 compared to HD4890 though.
Xbit Labs measured GTX295 (55nm dual GPU) and 5970 (40nm dual GPU) but skipped the 4970X2 (55nm dual GPU). Why?
I am not sure I can trust xbit labs' power measurements.
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