Product Compare

AMD Radeon Instinct MI250X vs AMD Steam Machine GPU

GPU GPU
Graphics Card
Release Date Nov 2021 Jan 2026
Generation Radeon Instinct Console GPU
Type Professional Desktop
Bus Interface PCIe 4.0 x16
Clock Speeds
Base Clock 1000 MHz 1720 MHz
Boost Clock 1700 MHz 2450 MHz
Memory Clock 1600 MHz 2250 MHz
Memory
Memory Size 128GB 8GB
Memory Type HBM2e GDDR6
Memory Bus 8192bit 128bit
Bandwidth 3277GB/s 288.0GB/s
Render Config
Compute Units 220 28
Shading Units 14080 1792
TMUs 880 112
ROPs 0 64
L1 Cache 16 KB (per CU) 128 KB per Array
L2 Cache 16 MB 2 MB
RT Cores 28
L3 Cache 32 MB
Theoretical Performance
Pixel Rate 0 MPixel/s 156.8 GPixel/s
Texture Rate 1496 GTexel/s 274.4 GTexel/s
FP16 (half) 383.0 TFLOPS 35.12 TFLOPS
FP32 (float) 47.87 TFLOPS 17.56 TFLOPS
FP64 (double) 47.87 TFLOPS 548.8 GFLOPS
Graphics Processor
GPU Name Aldebaran Navi 33
GPU Variant Aldebaran XT
Architecture CDNA 2.0 RDNA 3.0
Foundry TSMC TSMC
Process Size 6 nm 6 nm
Transistors 58.2 billion 13.3 billion
Die Size Unknown 204 mm²
Board Design
TDP 500W 110W
Suggested PSU 900 W
Outputs No outputs No outputs
Power Connectors 2x 8-pin None
Graphics Features
DirectX N/A 12 Ultimate (12_2)
OpenGL N/A 4.6
OpenCL 3.0 2.2
Vulkan N/A 1.4
Shader Model N/A 6.8