10/13/09 - Added more reviews, see my post below
Here's a HD 5770 review from Guru 3D that is quite extensive. Includes both single and X-Fired HD 5770 for those interested...
http://www.guru3d.com/article/radeon-hd-5770-review-test/
X-Fire performance is pretty good for those interested. All games tested at 2560 x 1600 shows playable frame rate with the exception of Crysis: Warhead (no surprise there). Far Cry 2 is somewhat low at 35FPS.
However, I'm more interested in single card performance at a more pedestrian gaming resolution of 1920 x 1200. The HD 5770 can basically hold it's own against the the HD 4870 or beat that card with the exception of Call of Duty 5: Modern Warfare (~ 15% performance lag), Mass Effects (~ 18% performance lag) and Fallout 3 (~ 7% performance lag).
While Guru3D did overclock the HD 5770 (Core 950MHz, Shade 950MHz, and Memory 5,620MHz) , the only game tested was Crysis:Warhead. Across all resolutions, the gain was only 2FPS; BTW the HD 5770 tied the HD 4870 in this benchmark at standard clock speed.
Interesting performance for a ~ $160 video card. However, it is priced at higher than what a HD 4870 currently sells for; lowest prices is ~ $130. The HD 4890 costs ~ $30 more than the HD 5770 and will consistently beat the new DX11 card in every game except "Anno 1404 - Dawn of Discovery".
In my opinion gamers should by this card over the HD 4870 if:
1. You want HD 4870-ish performance, but do not want to be forced to replace a relatively weak PSU.
2. You are upgrading to a faster cards and you want DX11.
Here's a HD 5770 review from Guru 3D that is quite extensive. Includes both single and X-Fired HD 5770 for those interested...
http://www.guru3d.com/article/radeon-hd-5770-review-test/
X-Fire performance is pretty good for those interested. All games tested at 2560 x 1600 shows playable frame rate with the exception of Crysis: Warhead (no surprise there). Far Cry 2 is somewhat low at 35FPS.
However, I'm more interested in single card performance at a more pedestrian gaming resolution of 1920 x 1200. The HD 5770 can basically hold it's own against the the HD 4870 or beat that card with the exception of Call of Duty 5: Modern Warfare (~ 15% performance lag), Mass Effects (~ 18% performance lag) and Fallout 3 (~ 7% performance lag).
While Guru3D did overclock the HD 5770 (Core 950MHz, Shade 950MHz, and Memory 5,620MHz) , the only game tested was Crysis:Warhead. Across all resolutions, the gain was only 2FPS; BTW the HD 5770 tied the HD 4870 in this benchmark at standard clock speed.
Interesting performance for a ~ $160 video card. However, it is priced at higher than what a HD 4870 currently sells for; lowest prices is ~ $130. The HD 4890 costs ~ $30 more than the HD 5770 and will consistently beat the new DX11 card in every game except "Anno 1404 - Dawn of Discovery".
In my opinion gamers should by this card over the HD 4870 if:
1. You want HD 4870-ish performance, but do not want to be forced to replace a relatively weak PSU.
2. You are upgrading to a faster cards and you want DX11.