Pros: I bought this as a replacement when my 4850 suddenly died one day. I wasn't expecting much of a performance gain, but this card pleasantly surprised me. Before, I ran Bad Company 2 at a mix of medium & high settings in DX10.1 mode with noAA, but now I am able to run it maxed-out in DX11 mode with 4xAA & still average the same FPS! When it comes to OCing, the GPU easily went to 960MHz on stock voltage (highest CCC will allow for this card). That's an easy 110MHz gain! Temps get up to 87° when stress testing, but never go beyond 70-ish when gaming. Memory went up to 1290MHz, which isn't quite the 1400MHz I see everybody else running, but all my games run great maxed-out, so who cares?

Cons: There might be something wrong with my card, because it 2D clocks are at 701/1069 rather than 150/300 like they should be. This causes my card to idle at 55° with the auto fan speed at 35%. I could just RMA but I don't think it's worth waiting another week for a new card, so I think I'm just gonna live with it. The non-reference cooler leaves the memory chips & MOSFETs completely exposed and prone to overheating. So I threw some ramsinks on there to be on the safe side.

Overall Review: The rest of my system: C2D E8400 @ 3.6GHz, 4GB DDR2 960 (5-5-5-15), Windows 7 x64 Ultimate P9505 in 3DMark Vantage, and 15340 in 3DMark06! $150 gets you a great, quiet running card that performs like a 4890 once you unlock it's potential through overclocking. You simply can't find a better deal than that!

Pros: This is a very great card for the price, with one I was able to play most games out there at max settings with at least 2x AA(sometimes more, depends on the game of course). With two of them now, I can usually get 8xAA, only game that gives me any problems is Crysis, as I only get 40fps(30fps with one card), though it is very playable at that speed, just not that oh so desirable 60fps. Overclocks well for me, I couldn't push it quite as far as some people say they have gotten it, but I still got GPU clock 900MHz, Memory Clock 1300MHz. (Memory can actually go higher, but I like to just leave it at 1300).

Cons: Hm lets see.. only con that I can pull out of my wildest imagination is that the card is big? not a con though as long as you make sure your case is big enough.

Pros: Performance: Excellent. Can handle just about any game at max settings and 1920 x 1200. Crysis recommends all "high" settings, but will still play pretty smoothly at "very high" (which is the top setting). Noise (Idle): Inaudible. I built the rest of my system around quiet parts, 2 ENERMAX UC-8EB 80mm Case Fan, Antec EarthWatts Green EA-430D PSU, and the stock CPU fan for Athlon II x4 630. This card cannot be heard over them at idle. Power Draw: Very low, especially at idle. None of the parts produce much more heat with this thing. Extras: Great. Comes with a VGA to DVI adapter, a crossfire bridge, and a converter power cable (2 molex to 6 pin PCI-express). I didn't have to use any of these things, but found it to be a surprisingly rich set of accessories for such an inexpensive card.

Cons: Noise (Load): Noticeable, but not really that bad. I'm very sensitive to the amount of noise my pc puts out, but I can tolerate a little extra noise during games. Somewhat more irritating is the tendency of the card's fan to spool up during simple tasks like picture viewing and blue ray. Connection Options: Could have been better. This card has 1 each of Display port, DVI and HDMI. I'd have preferred another HDMI or DVI instead of the display port. Software options, Overlcocking: Luke warm. AMD' overdrive software allows you to overclock the GPU and Memory, monitor GPU temperature, and control how fast the fan spins. You can also save the settings to profiles, that can be activated easily through the task bar or via a hot key assignment. This means you can force the fan to spin low, and then switch to overclocked settings right before entering a game. Very convenient. However, many of the games I tested are sensitive to overclocking, and would crash when the card was not in defa

Overall Review: Future Proof: Excellent. This card is very powerful and handles DX11. Toms Hardware has already indicated that using two 5770's in crossfire is more powerful than the $300+ Radeon HD 5850. So in another few years, when the price is cut in half, an upgrade will be as simple as buying a second card. All in all, this is a great card. I've always had trouble spending more than $100 on a graphics card. But sinking just $50 more into a card gives you performance that is multitudes better now, and that will sustain itself longer. Ati's attention to power consumption makes the decision even easier. While the 5770 is a home run, this particular model is only recommended at 149.99. If you can get it at that price, it's an excellent deal. but the sapphire vapor-x 5770 is probably a better card overall, with factory overclocked performance, quieter fan, and an additional DVI port.

Pros: Great card, not too big or bulky. Have heard some complaints with the software that comes with the card but I didn't use it, I went right to their website and used their latest software. Runs extremely quiet and cool. Definitely worth the under 200 price it goes for. I'm a very picky and cautious buyer and this one appealed to me the most. Haven't overclocked it yet though, so can't comment on that.

Cons: None really, other than the funky looking fan.

Overall Review: Would definitely recommend this card to anyone searching to buy one, as would I recommend this company. Have bought my last 3 cards from them and have had 0 problems, which is awesome. I've also heard how good they are at customer service as well, so if I did have a problem I'm sure it would be handled well.

Pros: Price. High end graphics for about 150 bucks. Runs D&D Online on Ultra high settings flawlessly in 1900 x 1080p. Bioshock 2 looks great and plays smooth as does Mass Effect 2.

Cons: So far, none.

Pros: For price/performance the 5770 can't be beat. Have no fear. This will run any game at the moment maxed out. No reason to spend any more money than this.

Cons: None

Overall Review: I am using Win7 64 bit and I experience zero issues so I don't know what other people are talking about.

Pros: These cards run very fast, and very cool. In Crossfire, they achieve 21,000 in 3dMark06 and 15,000 in 3dMark Vantage (P Score). They easily run as fast as a single Radeon HD 5870, which, for a setup that cost just a hair over $300, is just unbelievable. They also run very cool. Crysis and 3dMark barely get them to break 60C, and even the notorious Star Trek: Online doesn't cause them to exceed 65C. Only Furmark generates greater temperatures, and with that program they only hit 85C-90C on stock settings. The Rev2 cooler is clearly very cool running. It is also very quiet, being completely inaudible vs other fans usually. They also overclock fairly well. The memory became instantly unstable above 1300mhz, and intermittently unstable until I settled at a disappointing 1280mhz, however, the Core reached 940mhz without any hint of stability issues. That's a respectable overclock for these, despite the lacking memory performance, because many 5770s can only reach about 900mhz on the c

Cons: With only one CrossfireX port, these cards can only be run in a dual CrossfireX setup, however I will not knock these cards down for this, as the tradeoff was a cheaper price for an otherwise identical card vs the more expensive variants. The cards also didn't include Dirt 2, but as I wouldn't play that game anyways, I will also not knock these cards for that. The money I saved on the pair of these vs more expensive 5770s was at least worth a copy of that game.

Overall Review: These cards offer the best price/performance ratio out there at present, especially in CrossfireX setups, in which performance scales very well. My system: Antec 900 Asus Crosshair III Formula AM3 Motherboard Phenom II X4 965BE 125W @3.8ghz 4GB G.Skill Ripjaw DDR3 1600 9-9-9-24 2X HIS H577FM1GD Radeon HD 5770 1GB

Pros: This card is a lot faster than what I expected. I upgraded from a 4550, which sucked big time. The 5770 is able to handle every game I've thrown at it, usually at max settings, but with lower anti-aliasing. So far I've played Bad Company 2, Dawn of war 2, and Starraft 2 beta with solid frame rates.

Cons: None so far. I just hope it doesn't stop working.