Product Compare

AMD Radeon Instinct MI300X vs AMD Radeon R9 M390X

GPU GPU
Graphics Card
Release Date Dec 2023 May 2015
Generation Radeon Instinct Crystal System
Type Professional Mobile
Bus Interface PCIe 5.0 x16 PCIe 3.0 x16
Clock Speeds
Base Clock 1000 MHz
Boost Clock 2100 MHz
Memory Clock 1300 MHz 1250 MHz
Memory
Memory Size 192GB 4GB
Memory Type HBM3 GDDR5
Memory Bus 8192bit 256bit
Bandwidth 5.32TB/s 160.0GB/s
Render Config
Compute Units 304 32
Shading Units 19456 2048
TMUs 1216 128
ROPs 0 32
Tensor Cores 1216
L1 Cache 16 KB (per CU) 16 KB (per CU)
L2 Cache 16 MB 512 KB
L3 Cache 256 MB
Theoretical Performance
Pixel Rate 0 MPixel/s 23.14 GPixel/s
Texture Rate 2553.6 GTexel/s 92.54 GTexel/s
FP16 (half) 81.72 TFLOPS 2.961 TFLOPS
FP32 (float) 81.72 TFLOPS 2.961 TFLOPS
FP64 (double) 40.86 TFLOPS 185.1 GFLOPS
Graphics Processor
GPU Name Aqua Vanjaram Amethyst
Architecture CDNA 3.0 GCN 3.0
Foundry TSMC TSMC
Process Size 5 nm 28 nm
Transistors 153 billion 5 billion
Die Size 1017 mm² 366 mm²
GPU Variant Amethyst XT
Board Design
TDP 750W 75W
Suggested PSU 1150 W
Outputs No outputs No outputs
Power Connectors None None
Graphics Features
DirectX N/A 12 (12_0)
OpenGL N/A 4.6
OpenCL 3.0 2.0
Vulkan N/A 1.2
Shader Model N/A 6.3