Radeon HD 6990
General
ManufacturerAMD
SeriesNorthern Islands(HD 6900)
GPU NameAntilles
ArchitectureTeraScale 3
GenerationNorthern Islands(HD 6900)
Release DateMar 2011
Bus InterfacePCIe 2.0 x16
Process & Die
FoundryTSMC
Process Size40 nm
Transistors2,640 M
Transistor Density6,800 K/mm²
Die Size389 mm²
Clock Speeds
Base Clock830 MHz
Boost Clock830 MHz
Memory
VRAM2 GB
Memory TypeGDDR5
Memory Clock1,250 MHz
Memory Bus256-bit
Bandwidth160 GB/s
Processing Units
Shading Units1,536
TMUs96
ROPs32
SMs0
Tensor Cores0
RT Cores0
Cache
L1 Cache8 KB
L2 Cache0.5 MB
Power & Thermals
TDP375 W
Suggested PSU750 W
Power Connectors2x 8-pin
Dimensions
Board Length310 mm
Board Width115 mm
Outputs
Display Connectors1x DVI, 4x mini-DisplayPort 1.2
API Support
DirectX11.0
OpenGL4.4
OpenCL1.2
Shader Model5.0
Theoretical Performance
Pixel Rate26.56 GP/s
Texture Rate79.68 GT/s
FP32 (Single)2,550 GFLOPS
FP64 (Double)637.4 GFLOPS
External
TechPowerUpView →
Other Northern Islands(HD 6900) Models