Apr 28, 2011 07:31 GMT  ·  By

The leaks regarding AMD's plans to launch the OEM-only Radeon HD 6700-series graphics cards into the retail market have come true at last as the company has now announced the introduction of the HD 6770 and HD 6750 GPUs that are just rebranded versions of the previous HD 5700-series.

The two cards features the same specifications, clocks, power requirements and PCB designs as their Juniper counterparts since the modifications brought by AMD were limited to the card's BIOS.

Thanks to these changes, the Radeon HD 6770 and HD 6750 are now HDMI 1.4a compliant and support some of the additional resolutions and bitrates required by Blu-Ray 3D’s MVC(H.264) profiles.

These changes were made possible by the fact that HDMI 1.3 and HDMI 1.4a both have the same bandwidth requirements, while the 6700-series cards are fast enough to process MVC if the video decoding clocks are slightly increased.

As these features are implemented in the card's BIOS, so there is a possibility that these could also be enabled on the HD 5700-series card via a BIOS flash.

Spec wise, the Radeon HD 6770 features 800 stream processors, 40 texture units, 16 ROP units, a GPU clock of 850MHz, a 128-bit memory interface, and 1GB of GDDR5 video buffer that is clocked at 1200MHz (4800MHz data rate).

Its smaller brother, the Radeon HD 6750, packs 720 stream processors, 36 texture units, 16 ROP units, a 700MHz GPU clock, a 128-bit interface and 1GB of GDDR5 memory clocked at 1150MHz (4600MHz effective).

AMD stated that the graphics cards should retail for about the same price as the 5700-series models, but the initial listings could prove to be slightly higher until availability becomes widespread.

Even after these fluctuations settle, it's hard to imagine that the Radeon HD 6770 will reach the current price of the HD 5770 as the latter can be purchased for as low as $95 with various mail-in rebate offers. (via AnandTech)