Radeon HD 7870 XT
General
ManufacturerAMD
SeriesSouthern Islands(HD 7800)
GPU NameTahiti
ArchitectureGCN 1.0
GenerationSouthern Islands(HD 7800)
Release DateNov 2012
Bus InterfacePCIe 3.0 x16
Process & Die
FoundryTSMC
Process Size28 nm
Transistors4,313 M
Transistor Density12,300 K/mm²
Die Size352 mm²
Clock Speeds
Base Clock925 MHz
Boost Clock975 MHz
Memory
VRAM2 GB
Memory TypeGDDR5
Memory Clock1,500 MHz
Memory Bus256-bit
Bandwidth192 GB/s
Processing Units
Shading Units1,536
TMUs96
ROPs32
SMs0
Tensor Cores0
RT Cores0
Cache
L1 Cache16 KB
L2 Cache0.5 MB
Power & Thermals
TDP185 W
Suggested PSU450 W
Power Connectors2x 6-pin
Dimensions
Board Length267 mm
Outputs
Display Connectors1x DVI, 1x HDMI 1.4a, 2x mini-DisplayPort 1.2
API Support
DirectX11.1
OpenGL4.6
Vulkan1.2
OpenCL1.2
Shader Model5.1
Theoretical Performance
Pixel Rate31.2 GP/s
Texture Rate93.6 GT/s
FP32 (Single)2,995 GFLOPS
FP64 (Double)748.8 GFLOPS
External
TechPowerUpView →
Other Southern Islands(HD 7800) Models