Radeon HD 4000 series - new inofficial info

Citação :

german site Hartware.net has postet some specs of the upcoming generation of ATI cards.

they got this info from an anonymous reader so take it with a grain of salt. however it's from images of an "authentic looking presentation".

more here: Google Translate

4850 and 4870 are still based on the 55nm process. The Memory Interface will stay at 256Bit and the ROPs at 16. The number of Stream Processors will increase by 50% to 480 and the number of Texture Mapping Units will be doubled to 32. when idling the 4870 is supposed to draw less than 10w of power.

the new high end model R700XT, or 4870X2 will be similar to the 3870X2. Still a 2x256MBit Memory Bus but now with GDDR5 Memory. just like the 3870X2 its gonna have lower memory clocks compared to the single 4870 version but it has a whooping 250W TDP much like the rumored spec of the 9800GX2.

Memory sizes are: 4850 512MB, 4870 1GB, 4870x2 2GB ... all GDDR5

Reparem nas estatísticas:

Citação :

HD4870 1GB GDDR5 @ 2200MHz (DDR-4400) = 140.8 GB/s

+95.5% superior em largura de banda comparativamente à HD3870 (DDR-2250 @ 256bit = 72GB/s)
+33.3% superior em largura de banda comparativamente à HD2900XT (DDR-1650 @ 512bit = 105.6GB/s)

Ainda os preços, previstos:

Citação :

Radeon HD 4870 X2 (2 x RV770) -> частоты 1050/3600 МГц, 1 Гб или 2 Гб GDDR-5, TDP=250 Вт, $499;
Radeon HD 4870 (RV770) -> частоты 1050/4400 МГц, 1 Гб GDDR-5, TDP=150 Вт, $299;
Radeon HD 4850 (RV770) -> частоты 850/3600 МГц, 512 Mб GDDR-5, TDP=120 Вт, $249;
Radeon HD 4670 (RV740) -> частоты 1000/2400 МГц, 512 Mб GDDR-4, TDP=100 Вт, $149;
Radeon HD 4650 (RV740) -> частоты 800/2000 МГц, 256 Mб GDDR-4, TDP=80 Вт, $129;
Radeon HD 4470 (RV710) -> частоты 900/1600 МГц, 256 Mб GDDR-3, TDP=50 Вт, $79;
Radeon HD 4450 (RV710) -> частоты 700/1000 МГц, 128 Mб GDDR-2, TDP=30 Вт, $59.

Espera-se que os modelos correspondentes à série HD4xxx sejam lançados entre o segundo e terceiro trimestre deste ano.

gddr5?????onde isto vai parar....