Each of the cards in the lineup has its own strengths and weaknesses. In terms of card design the five cards are all reference cards with none of them having higher core or memory clocks than the other similar cards in the lineup. XFX offers 5-Star Support on their video cards and a Double Lifetime Warranty. They also offer BattleForge which is a DirectX 10.1 game with some performance enhancements for DirectX 11 on their HD5770. Sapphire, on the other hand offers the game Dirt2 which is much like ATIís HL2 in that many manufacturers are releasing cards with this game bundled. The ASUS card does not come with a game or 5-Star Support but does offer Voltage Tweaks on the SmartDoctor application, allowing for higher overclocks.
Performance of the HD 5770 is a little below the HD4890 in a lot of cases due to the lower memory bandwidth of this card. The HD5750 card is designed for the under $150 price range. This card has lesser performance than the HD 5770 but is also $50 less expensive. The two cards from XFX and Sapphire differ slightly in terms of the cooling shroud used on the card but otherwise the clock speeds and memory clocks are identical to each other. Performance of this card is akin to about Ĺ a HD 5850 as the card has Ĺ the SPs, TMUs, ROPs and 128-bit memory interface. Overall for those people wanting DX11 support or just a VGA card that decently plays games at a resolution of 1920X1200, this new lineup may be satisfactory for your needs. Your buying choice is mainly what comes in the retail box, how comfortable you are with the company and its warranty. XFX has the best warranty, Sapphire the best content and ASUS has the overclocking advantage with their Voltage options.