Product Compare

AMD Radeon Instinct MI8 vs AMD Radeon Instinct MI355X

GPU GPU
Graphics Card
Release Date Dec 2016 Jun 2025
Generation Radeon Instinct Radeon Instinct
Type Professional Professional
Bus Interface PCIe 3.0 x16 PCIe 5.0 x16
Clock Speeds
Memory Clock 500 MHz 2000 MHz
Base Clock 1000 MHz
Boost Clock 2400 MHz
Memory
Memory Size 4GB 288GB
Memory Type HBM HBM3e
Memory Bus 4096bit 8192bit
Bandwidth 512.0GB/s 8.19TB/s
Render Config
Compute Units 64 256
Shading Units 4096 16384
TMUs 256 1024
ROPs 64 0
L1 Cache 16 KB (per CU) 32 KB (per CU)
L2 Cache 2 MB 32 MB
Tensor Cores 1216
L3 Cache 256 MB
Theoretical Performance
Pixel Rate 64.00 GPixel/s 0 MPixel/s
Texture Rate 256.0 GTexel/s 2457.6 GTexel/s
FP16 (half) 8.192 TFLOPS 78.64 TFLOPS
FP32 (float) 8.192 TFLOPS 78.64 TFLOPS
FP64 (double) 512.0 GFLOPS 39.32 TFLOPS
Graphics Processor
GPU Name Fiji MI350 256CU
GPU Variant Fiji XT CA(215-0862120)
Architecture GCN 3.0 CDNA 4.0
Foundry TSMC TSMC
Process Size 28 nm 3 nm
Transistors 8.9 billion 185 billion
Die Size 596 mm² Unknown
Board Design
TDP 175W 1400W
Suggested PSU 450 W 1800 W
Outputs No outputs No outputs
Power Connectors 1x 8-pin None
Graphics Features
DirectX 12 (12_0) N/A
OpenGL 4.6 N/A
OpenCL 2.1 3.0
Vulkan 1.2.170 N/A
Shader Model 6.5 N/A