Today, AMD rolls out its mainstream performance oriented Cape Verde GPU clan with the Radeon HD 7770 and Radeon HD 7750 GPUs.
Adopting the same new GCN architecture as well as their 28nm fabrication process of the Tahiti GPU, the Radeon HD 7770 is the highlight of the Cape Verde GPU series as the first GPU clocked at 1000MHz. Also joining it is the Radeon HD 7750 GPU.
Graphics cards based on these GPUs have a suggested retail price of US$159 and US$109 respectively. At the price range, these will form the new performance mainstream cards from AMD to go up against the GeForce GTX 550 Ti and their existing Radeon HD 6700 series (which are made up of the 6750, 6770 and 6790 models). You can get more info in our hands-on of the first card to land in our lab.
Here's a quick specs comparison table between the two new Cape Verde GPU models:-
|Model||AMD Radeon HD 7770||AMD Radeon HD 7750|
|Transistor Count||1500 million|
|Stream Processors||640 Stream processing units||512 Stream processing units|
|Stream Processor Clock||1125MHz|
|Texture Mapping Units (TMU) or Texture Filtering (TF) units||40||32|
|Raster Operator units (ROP)||16|
|Memory Clock||4500MHz GDDR5|
|DDR Memory Bus||128-bit|
Several add-in card card partners including (but not limited to) ASUS and Sapphire have launched their versions of the Radeon HD 7770/7750 graphics cards with custom designs and coolers. Here is a quick pictorial overview of them and key specs:-
And here are their respective official press releases:-
You can also read more about the ASUS Radeon HD 7770 DirectCU TOP 1GB GDDR5 (HD7770-DCT-1GD5) in our quick review.