So, I've been reading some 4890 reviews, and it's pretty clear that it is neck and neck with the GTX 285 (which is $100+ more expensive) in performance, with potentially more overclocking headroom. What's not clear is how the cards compare power consumption-wise.
X Bit Lab's Review has the 4890 with even lower idle power consumption than the GTX 260, which has been shown to be very miserly with power.
However, Anandtech's Review has the 4890 using almost 25W more than the GTX 260 at idle. Other reviews are all over the place.
I know each review site has a different methodology for measuring power consumption, but I would expect the relative trends to be at least somewhat consistent. Is there something behind these wild variations (driver differences, differences between brands, operating system, other)?
X Bit Lab's Review has the 4890 with even lower idle power consumption than the GTX 260, which has been shown to be very miserly with power.
However, Anandtech's Review has the 4890 using almost 25W more than the GTX 260 at idle. Other reviews are all over the place.
I know each review site has a different methodology for measuring power consumption, but I would expect the relative trends to be at least somewhat consistent. Is there something behind these wild variations (driver differences, differences between brands, operating system, other)?