Radeon R9 255 OEM
General
ManufacturerAMD
SeriesVolcanic Islands(R9 200)
GPU NameCape Verde
ArchitectureGCN 1.0
GenerationVolcanic Islands(R9 200)
Release DateDec 2013
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 Clock900 MHz
Boost Clock930 MHz
Memory
VRAM2 GB
Memory TypeGDDR5
Memory Clock1,150 MHz
Memory Bus128-bit
Bandwidth73.6 GB/s
Processing Units
Shading Units512
TMUs32
ROPs16
SMs0
Tensor Cores0
RT Cores0
Cache
L1 Cache16 KB
L2 Cache0.25 MB
Power & Thermals
TDP65 W
Suggested PSU250 W
Power Connectors1x 6-pin
Dimensions
Outputs
API Support
DirectX11.1
OpenGL4.6
Vulkan1.2
OpenCL1.2
Shader Model5.1
Theoretical Performance
Pixel Rate14.88 GP/s
Texture Rate29.76 GT/s
FP32 (Single)952.3 GFLOPS
FP64 (Double)59.52 GFLOPS
External
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