Product Compare

AMD Radeon HD 7950 Mac Edition vs AMD Steam Machine GPU

GPU GPU
Graphics Card
Release Date Mar 2013 Jan 2026
Generation Southern Islands Console GPU
Type Desktop Desktop
Bus Interface PCIe 3.0 x16
Clock Speeds
Memory Clock 1250 MHz 2250 MHz
Base Clock 1720 MHz
Boost Clock 2450 MHz
Memory
Memory Size 3GB 8GB
Memory Type GDDR5 GDDR6
Memory Bus 384bit 128bit
Bandwidth 240.0GB/s 288.0GB/s
Render Config
Compute Units 28 28
Shading Units 1792 1792
TMUs 112 112
ROPs 32 64
L1 Cache 16 KB (per CU) 128 KB per Array
L2 Cache 768 KB 2 MB
RT Cores 28
L3 Cache 32 MB
Theoretical Performance
Pixel Rate 25.60 GPixel/s 156.8 GPixel/s
Texture Rate 89.60 GTexel/s 274.4 GTexel/s
FP32 (float) 2.867 TFLOPS 17.56 TFLOPS
FP64 (double) 716.8 GFLOPS 548.8 GFLOPS
FP16 (half) 35.12 TFLOPS
Graphics Processor
GPU Name Tahiti Navi 33
GPU Variant Tahiti PRO(215-0821056)
Architecture GCN 1.0 RDNA 3.0
Foundry TSMC TSMC
Process Size 28 nm 6 nm
Transistors 4.313 billion 13.3 billion
Die Size 352 mm² 204 mm²
Board Design
TDP 200W 110W
Suggested PSU 550 W
Outputs 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 No outputs
Power Connectors 2x 6-pin None
Graphics Features
DirectX 12 (11_1) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 1.2 2.2
Vulkan 1.2 1.4
Shader Model 5.1 6.8