Radeon HD 7870M
General
ManufacturerAMD
SeriesLondon(HD 7800M)
GPU NameHeathrow
ArchitectureGCN 1.0
GenerationLondon(HD 7800M)
Release DateApr 2012
Bus InterfacePCIe 3.0 x16
Process & Die
FoundryTSMC
Process Size28 nm
Transistors1,500 M
Transistor Density12,200 K/mm²
Die Size123 mm²
Chip PackageFCBGA-962
Clock Speeds
Base Clock800 MHz
Boost Clock800 MHz
Memory
VRAM2 GB
Memory TypeGDDR5
Memory Clock1,000 MHz
Memory Bus128-bit
Bandwidth64 GB/s
Processing Units
Shading Units640
TMUs40
ROPs16
SMs0
Tensor Cores0
RT Cores0
Cache
L1 Cache16 KB
L2 Cache0.25 MB
Power & Thermals
TDP45 W
Dimensions
Outputs
API Support
DirectX11.1
OpenGL4.6
Vulkan1.2
OpenCL1.2
Shader Model5.1
Theoretical Performance
Pixel Rate12.8 GP/s
Texture Rate32 GT/s
FP32 (Single)1,024 GFLOPS
FP64 (Double)64 GFLOPS
External
TechPowerUpView →
Other London(HD 7800M) Models