Radeon HD 7770 

A couple of judicious choices about where to reduce quality should provide a nice experience with almost any new game.

Both cards are similar at idle, but when you fire up a game, the difference is remarkable.

It’s fast enough for modern games, but just barely.

I've never seen that controller before, so it is unknown whether it supports software voltage control.

For gaming this is very impressive, as XFX's card runs significantly higher clock speeds than the AMD reference board, which typically results in increased power draw - not so with the XFX HD 7770.

For gaming this is very impressive, as the card runs significantly higher clock speeds than the AMD reference board, which typically results in increased power draw - not so with the Gigabyte HD 7770 OC.

You may combine up to two HD 7770 cards from any vendor in a multi-GPU CrossFire configuration for higher framerates or better image quality settings.

Even though Vapor-X was engineered for high-end cards, the company's exclusive cooling technology can really show its potential on this lower-midrange card.

You get right around 30 frames per second at 1080p resolution in modern games, with the detail settings cranked up high.

This efficiency is supposed to show in relative performance per mm² (taking the new 28 nm fab process into account), performance per Watt, and in more layman terms, performance to stream processor count.

AMD's latest graphics processor shows outstanding power consumption characteristics.

In this power state, the graphics card draws less than 3W of power, making it extremely energy-efficient.

We can look at an individual game, like Crysis 2, and see that the Nvidia card is a good 20 percent faster.

In fact, when we average together the results from all our test games (Crysis 2, Dirt 3, Metro 2033, and Just Cause 2), we find the GeForce 560 to be over 25 percent faster.