Product Compare

AMD Radeon RX 580G vs AMD Radeon HD 8950 OEM

GPU GPU
Graphics Card
Release Date Oct 2018 Jan 2013
Generation Polaris Sea Islands
Type Desktop Desktop
Bus Interface PCIe 3.0 x16 PCIe 3.0 x16
Clock Speeds
Base Clock 1257 MHz 850 MHz
Boost Clock 1330 MHz 925 MHz
Memory Clock 2000 MHz 1250 MHz
Memory
Memory Size 8GB 3GB
Memory Type GDDR5 GDDR5
Memory Bus 256bit 384bit
Bandwidth 256.0GB/s 240.0GB/s
Render Config
Compute Units 36 28
Shading Units 2304 1792
TMUs 144 112
ROPs 32 32
L1 Cache 16 KB (per CU) 16 KB (per CU)
L2 Cache 2 MB 768 KB
Theoretical Performance
Pixel Rate 42.56 GPixel/s 29.60 GPixel/s
Texture Rate 191.5 GTexel/s 103.6 GTexel/s
FP16 (half) 6.129 TFLOPS
FP32 (float) 6.129 TFLOPS 3.315 TFLOPS
FP64 (double) 383.0 GFLOPS 828.8 GFLOPS
Graphics Processor
GPU Name Polaris 20 Tahiti
GPU Variant Polaris 20 XTX(215-0910038) Tahiti PRO(215-0821056)
Architecture GCN 4.0 GCN 1.0
Foundry GlobalFoundries TSMC
Process Size 14 nm 28 nm
Transistors 5.7 billion 4.313 billion
Die Size 232 mm² 352 mm²
Board Design
TDP 185W 200W
Suggested PSU 450 W 550 W
Outputs 1x HDMI 2.0b3x DisplayPort 1.4a 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors 1x 8-pin 2x 6-pin
Graphics Features
DirectX 12 (12_0) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 2.1 1.2
Vulkan 1.2 1.2
Shader Model 6.4 5.1