Starting, as always, with Crysis, the most obvious result is that the HD 5770 pretty much holds parity with its key competitors, the HD 4870, GTX 275, and GTX 260. Considering these were last year's high-end cards, this is certainly a good start, though of course prices for these cards have dropped significantly since then. Sadly this still doesn't equate to amazing performance, with the HD 5770 achieving just 28.68 fps at 1,920 x 1,200 with 2xAA. Thankfully Crysis is not representative of the vast majority of games and can be considered a worse case scenario.
Far Cry is a game we've only recently brought into out testing procedure so we don't have results for some of the older cards but we're still able to draw some conclusions. The main thing to note is that the HD 5770 again seems to tally almost exactly with the performance of the GTX 275. As such it's fair to conclude that the GTX 260 and HD 4870 would have fallen into similar positions and that the HD 5770 competes well.
With the latest Call Of Duty game now available, we'll probably transition our testing to that game in the near future, but for now we've stuck to the old game. The HD 5770 performs very well in this game giving completely playable framerates even at 1,920 x 1,200 with 4xAA. Compared to other cards, it also holds up well, again almost exactly equalling the three price-competitive cards previously mentioned.
Our penultimate game, Race Driver: GRID, sees a change in gaming style from running and gunning to driving and accompanying this is a change in fortunes for the HD 5770. Here, despite still competing with the GTX 260, it consistently falls behind the GTX 275 and HD 4870. Nevertheless, it still delivers a very playable experience at all the settings tested.
Finally we have Counter-Strike: Source and as we've come to expect even this relatively modest card absolutely breezes through this title - at 1,920 x 1,200 with 4xAA, it still gets an average of 149.27 fps. As such, we've only reported the highest settings we tested at.
Looking next at power consumption and the case for the HD 5770 starts to become even clearer. It has the lowest idle power consumption on test and has significantly lower power consumption when under load than all the cards with which it competes in terms of price and gaming performance.
As for the noise these cards produce, well again this is only a test we've introduced recently so are missing some cards for comparison. However, we can draw some conclusions. In particular, we can see that this card falls within our level of 'you wouldn't really notice it in normal use' at idle but isn't so quiet as to be suitable for a 'silent' PC. Under load it is just on the cusp of being annoyingly loud but if kept in a well ventilated case, it shouldn't be too disturbing.
All told then, the HD 5770 has an impressive level of performance for its price, draws relatively little power, and is perfectly acceptable when it comes to noise levels. It also compares well to its price/performance competitors. The GTX 275 is simply overpriced and not worth considering while the HD 4890 is a little bit faster but does cost a little bit more. As for the HD 4870 and GTX 260, they offer almost identical performance to the HD 5770 and cost about the same but they consume more power and have fewer features, so here the HD 5770 is the clear graphics card of choice.
As a mid-range card, the AMD ATI Radeon HD 5770 was never going to set new records but it doesn't skimp on features and delivers as much performance as we'd expect at its price point.