Mobility Radeon HD 3870
General
ManufacturerATI
SeriesM8x(Mobility HD 3800)
GPU NameM88
ArchitectureTeraScale
GenerationM8x(Mobility HD 3800)
Release DateJun 2008
Bus InterfacePCIe 2.0 x16
Process & Die
FoundryTSMC
Process Size55 nm
Transistors666 M
Transistor Density3,500 K/mm²
Die Size192 mm²
Chip PackageFCBGA-1281
Clock Speeds
Base Clock660 MHz
Boost Clock660 MHz
Memory
VRAM0.5 GB
Memory TypeGDDR3
Memory Clock850 MHz
Memory Bus256-bit
Bandwidth54.4 GB/s
Processing Units
Shading Units320
TMUs16
ROPs16
SMs0
Tensor Cores0
RT Cores0
Cache
L2 Cache0.25 MB
Power & Thermals
TDP55 W
Dimensions
Outputs
API Support
DirectX10.1
OpenGL3.3
Shader Model4.1
Theoretical Performance
Pixel Rate10.56 GP/s
Texture Rate10.56 GT/s
FP32 (Single)422.4 GFLOPS
FP64 (Double)84.48 GFLOPS
External
TechPowerUpView →
Other M8x(Mobility HD 3800) Models