Only yesterday we reported that AMDs revealed their new generation of video cards with up to 1600 stream processors and 80 TMUs. Now we are able to have a more detailed look at the HD 5870, AMDs new showpiece.
The following chart displays HD 5870s final performances in comparison to the older HD 4870 and HD 4890:
|.||HD 4870||HD 4890||HD 5870|
|Technique||55 nanometres||55 nanometres||40 nanometres|
|Chip size||260 mm²||282 mm²||338 mm²|
|Chip frequency||750 MHz||850 MHz||825 MHz|
|Memory frequency||900 MHz||975 MHz||1300 MHz|
|Shader performance||1200 Gigaflops||1360 Gigaflops||2640 Gigaflops|
|Texelrate||30.000 MT/s||34.000 MT/s||66.000 MT/s|
|Pixelrate||12.000 MP/s||13.600 MP/s||26.400 MP/s|
|Memory interface||256 Bit GDDR5||256 Bit GDDR5||256 Bit GDDR5|
|Memory bandwidth||115,2 GB/s||124,8 GB/s||166,4 GB/s|
The chip of HD 5870 clocks by 825 MHz. Combined with the mentioned 1600 stream processors and 80 TMUs up to 2640 gigaflops processing power and 66 gigatexel per second texture processing are possible; this is twice as much as the HD 4890 offers.
In addition to that AMD also doubled the number of ROPs from 16 to 32.
HD 5870s GDDR5 memory clocks by 1300 MHz whereas the older generation only clock by 900 or respectively 975 MHz. As the memory interface still contains 256 bit also the memory bandwidth increased about 44 respectively 33 per cent, which is, compared to the other features, just slightly more.
Together with her smaller sister (HD 5850) the new HD 5850 shall officially be released on September, 23. Expected sales price: 399 US-Dollar.