Radeon HD 4870 Technical characteristics :
Chip: RV770XT, 55- nm
Core Frequency: 850 MHz
Shader Units Frequency : 1050 MHz
Memory Frequency : 1935 (3870 MHz)
Quantity of stream processors: 480
Quantity of textural units: 32
Quantity ROP: 16
Memory Interface : 256- bit
Memory capacity: 1024 MB.
TDP: 150 W
Radeon HD 4850 (version with GDDR5 and GDDR3) Technical characteristics :
Chip: RV770PRO, the 55- nm
Core Frequency : 650 MHz
Shader domain Frequency : 850 MHz
Memory Frequency : 1935 (3870) MHz in GDDR5 and 1143 (2286) MHz in GDDR3
Quantity of stream processors: 480
Quantity of textural units: 32
Quantity ROP: 16
Memory Interface : 256- bit
Memory capacity: 512 MB. in GDDR5 and 256 or 512 MB. in GDDR3
TDP: 110 W
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