New Specifications of Cape Verde based AMD's Mid-Segment GPU's - Radeon HD7770/7750 along with a picture of Sapphire Radeon HD7770 have been spotted over at OBR's blog. According to him, The specs posted over at 3DCenter are not legit since the specifications he has leaked seem to be completely different.
The new specifications show that the HD7770 consists of 1280 Stream Processors, 80 TMU's, 16 ROP's, 1GB GDDR5 (128-bit) memory buffer, total memory bandwidth is 73.6Gb/s. Core Clock is set at 1000Mhz, Memory Frequency at 4600Mhz. The card is powered through a single 6 Pin Connector and has a TDP design of 80W. Price is expected around € 115.
The Radeon HD7750 packs 1024 Stream Processors, 64 TMU's, 16 ROP's, 1GB GDDR5 (128-bit) memory buffer. Core Clock is set at 800Mhz, Memory Frequency at 4600Mhz. A rated TDP design of 60W and powered through a Six Pin connector, Price is expected around € 90-100
AMD Radeon HD 7770
- 1280 Stream Processors
- 16 raster operation units (ROPs)
- 128-bit GDDR5 memory interface
- Clock Speeds: 1000/4600 MHz
- Memory Bandwidth: 73.6 GB/sec
- Typical board power: 80W ~
- Memory buffer: 1024 MB of GDDR5 memory
AMD Radeon HD 7750
- 1024 Stream Processors
- 16 raster operation units (ROPs)
- 128-bit GDDR5 memory interface
- Clock speeds: 800/4699 MHz
- Memory Bandwidth: 73.6 GB/sec
- Typical board power: 60W
- Memory buffer: 1024 MB of GDDR5 memory
OBR also posted a screenshot of the Radeon HD7770 from Sapphire and tells that cards from all vendors look exactly the same as Radeon HD6770 with same coolers, Following is a screenshot of a reference design which was leaked by a Chinese leaker:
