Radeon HD 3870 X2
General
ManufacturerATI
SeriesRadeon R600(HD 3800)
GPU NameR680
ArchitectureTeraScale
GenerationRadeon R600(HD 3800)
Release DateJan 2008
Bus InterfacePCIe 2.0 x16
Process & Die
FoundryTSMC
Process Size55 nm
Transistors666 M
Transistor Density3,500 K/mm²
Die Size192 mm²
Clock Speeds
Base Clock825 MHz
Boost Clock825 MHz
Memory
VRAM0.5 GB
Memory TypeGDDR3
Memory Clock901 MHz
Memory Bus256-bit
Bandwidth57.66 GB/s
Processing Units
Shading Units320
TMUs16
ROPs16
SMs0
Tensor Cores0
RT Cores0
Cache
L2 Cache0.25 MB
Power & Thermals
TDP165 W
Suggested PSU450 W
Power Connectors1x 6-pin + 1x 8-pin
Dimensions
Board Length267 mm
Board Width113 mm
Outputs
Display Connectors2x DVI, 1x S-Video
API Support
DirectX10.1
OpenGL3.3
Shader Model4.1
Theoretical Performance
Pixel Rate13.2 GP/s
Texture Rate13.2 GT/s
FP32 (Single)528 GFLOPS
FP64 (Double)105.6 GFLOPS
External
TechPowerUpView →
Other Radeon R600(HD 3800) Models