AMD Radeon Instinct MI25 vs AMD Radeon R9 M395 Mac Edition

Table of Contents

Graphics Processor

GPU model Vega 10 Amethyst
GPU variant Vega 10 XT GL (215-0894124) Amethyst PRO (216-0872004)
Architecture GCN 5.0 GCN 3.0
Foundry GlobalFoundries TSMC
Manufacturing process 14 nm 28 nm
Number of transistors 12,500 million 5,000 million
Die size 495 mm² 366 mm²

Graphics Card

Release date Jun 27th, 2017
Generation Radeon Instinct
Production Active
Interface PCIe 3.0 x16

Clocks

Base clock 1400 MHz
Boost clock 1500 MHz
Memory clock 852 MHz 1704 Mbps effective 1365 MHz 5.5 Gbps effective
GPU clock 834 MHz

Memory Configuration

Memory size 16 GB 2 GB
Memory type HBM2 GDDR5
Memory bus width 2048 bit 256 bit
Bandwidth 436.2 GB/s 174.7 GB/s

Render Configuration

Shading units 4096 1792
TMUs 256 112
ROPs 64 32
Compute units 64 28
Cache L1 16 KB (per CU)
Cache L2 4 MB

Performance

Pixel rate 96.00 GPixel/s 26.69 GPixel/s
Texture rate 384.0 GTexel/s 93.41 GTexel/s
FP16 (half) performance 24.58 TFLOPS (2:1)
FP32 (float) performance 12.29 TFLOPS 2.989 TFLOPS
FP64 (double) performance 768.0 GFLOPS (1:16) 373.6 GFLOPS (1:8)

Dimensions & Outputs

Slot width Dual-slot MXM Module
Length 267 mm 10.5 inches
Width 111 mm 4.4 inches
TDP 300 W 250 W
Suggested PSU 700 W
Outputs No outputs No outputs
Power connectors 2x 8-pin None
Board number D051

API Support & Features

DirectX 12 (12_1) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.1 2.0
Vulkan 1.2 1.2
Shader model 6.4 6.3

Other Features

Mobile graphics

Release date May 5th, 2015
Generation Crystal System (R9 M300)
Production End-of-life
Interface MXM-B (3.0)
Predecessor Solar System
Successor Mobility Radeon

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