Product Compare

AMD Radeon Instinct MI25 vs AMD Radeon RX 640 Mobile

GPU GPU
Graphics Card
Release Date Jun 2017 May 2019
Generation Radeon Instinct Mobility Radeon
Type Professional Mobile
Bus Interface PCIe 3.0 x16 PCIe 3.0 x8
Clock Speeds
Base Clock 1400 MHz 1082 MHz
Boost Clock 1500 MHz 1218 MHz
Memory Clock 852 MHz 1500 MHz
Memory
Memory Size 16GB 2GB
Memory Type HBM2 GDDR5
Memory Bus 2048bit 64bit
Bandwidth 436.2GB/s 48.00GB/s
Render Config
Compute Units 64 10
Shading Units 4096 640
TMUs 256 40
ROPs 64 16
L1 Cache 16 KB (per CU) 16 KB (per CU)
L2 Cache 4 MB 512 KB
Theoretical Performance
Pixel Rate 96.00 GPixel/s 19.49 GPixel/s
Texture Rate 384.0 GTexel/s 48.72 GTexel/s
FP16 (half) 24.58 TFLOPS 1.559 TFLOPS
FP32 (float) 12.29 TFLOPS 1.559 TFLOPS
FP64 (double) 768.0 GFLOPS 97.44 GFLOPS
Graphics Processor
GPU Name Vega 10 Polaris 23
GPU Variant Vega 10 XT GL(215-0894124) Polaris 23 XT
Architecture GCN 5.0 GCN 4.0
Foundry GlobalFoundries GlobalFoundries
Process Size 14 nm 14 nm
Transistors 12.5 billion 2.2 billion
Die Size 495 mm² 103 mm²
Board Design
TDP 300W 50W
Suggested PSU 700 W
Outputs No outputs No outputs
Power Connectors 2x 8-pin None
Graphics Features
DirectX 12 (12_1) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.1 2.1
Vulkan 1.2 1.2
Shader Model 6.4 6.4