Last year AMD released their new Radeon HD 5800 Series of graphics cards which quickly became a big success due to the numerous improvements made over previous generations. Over the course of the last months AMD has been adding more cards to their DirectX 11 lineup quickly, most recently the Radeon HD 5670.
AMD's Radeon HD 5770 has been out for several months as we are seeing the first customized designs now. PowerColor has customized the PCB designs to fit their needs and they also include a different thermal solution than the AMD reference design. On top of that the clock speeds have received a small bump from 850/1200 MHz to 875/1225 MHz (core/memory). While this is a fairly small increase, every little bit of extra performance helps. All these changes come at a price though, PowerColor expects a price of $180, which is about $25 more than the reference design.
UPDATE Jan 22, 2010:
PowerColor has provided us with an updated BIOS that should reduce the fan noise of the card considerably. They also informed us that the current price of the card at Newegg is $165 before MIR. You can get the updated BIOS here, or contact PowerColor support if you need additional assistance.
We have updated the pages Power Consumption, Fan Noise, Performance/Watt, Performance/$, Overclocking, Value & Conclusion to reflect properties of the new BIOS. When relevant, old text has been left in the review formatted
HD 5770 PCS+
|Memory Size||512 MB||1024 MB||512 MB||512 MB||1024 MB||1024 MB|
|Memory Bus Width||128 bit||256 bit||256 bit||256 bit||128 bit||128 bit|
|Core Clock||750 MHz||738 MHz||625 MHz||750 MHz||850 MHz||875 MHz|
|Memory Clock||800 MHz||1100 MHz||993 MHz||900 MHz||1200 MHz||1225 MHz|