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Spec Radeon R9 255 OEM AMD
Overview
Product name AMD Radeon R9 255 OEM
Architecture GCN 1.0
Generation / family Radeon R Series
Launch date 2013-12-21
Market segment Gaming
Board type / entry type Reference GPU
GPU
Process node TSMC 28 nm
Die size 123 mm²
Transistor count 1.5 billion
GPU chip Cape Verde
Stream Processors 512
ROPs 16
TMUs 32
Clocks
Base / Core clock 900 MHz
Boost clock 930 MHz
Memory clock 1,150 MHz
Memory
Memory size 2 GB
Memory type GDDR5
Memory bus width 128-bit
Memory bandwidth 73.6 GB/s
Bus / Interface
Bus interface PCIe 3.0 x16
AGP / PCI / PCIe distinction PCIe
Power
TDP / TBP / board power 65 W
Recommended PSU 250 W
Slot width Dual-slot
Features
DirectX support DirectX 11.1
OpenGL support OpenGL 4.6
Vulkan support Vulkan 1.2
Shader Model 5.1
Performance / Benchmarks
FP32 throughput 0.95 TFLOPS
Muted cells indicate unavailable, not applicable, or not directly comparable specifications.

DLAA counts as native resolution; DLSS, FSR and XeSS upscaling never do. A ray tracing setting without a readable on or off value is read as on.