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24 April 2008

Radeon HD4850 HD4870 (RV770) Specifications

Radeon HD4850 HD4870 (RV770) Specifications


(image from pcper.com)



RV770XT RV770PRO RV770PRO
Product Name
HD4870 HD4850 HD 4850 GDDR3
Process 55 nm 55 nm 55 nm
Core Clock
850 MHz 650 MHz 650 MHz
Shader Clock
1050 MHz 850 MHz 850 MHz
Memory Clock
1935 MHz 1728 MHz 1143 MHz
Stream Processors
480 480 480
TMUs 32 32 32
ROPs 16 16 16
FLOPs 1008 GFlops 816 GFlops 816 GFlops
Fill Rate
27.200 MT/s 20.800 MT/s 20.800 MT/s
Memory Bus Width
256-bit 256-bit 256-bit
Memory Size
1 GB
512 MB 256 MB
512 MB
Memory Type
GDDR5 GDDR5 GDDR3
Memory Bandwidth
123.8 GB/s 110.5 GB/s 73.2 GB/s
TDP 150W 110W 110W
MSPR $349* $269* TBA
Release May 2008 May 2008 TBA
*currency is in USD

Source: Hardware-Infos

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