AMD Radeon Instinct MI250X vs AMD Radeon R9 M295X

Table of Contents

Graphics Processor

GPU model Aldebaran Amethyst
GPU variant Aldebaran XT Amethyst XT
Architecture CDNA 2.0 GCN 3.0
Foundry TSMC TSMC
Manufacturing process 6 nm 28 nm
Number of transistors 58,200 million 5,000 million
Die size unknown 366 mm²

Graphics Card

Release date Nov 8th, 2021
Generation Radeon Instinct
Production unknown
Interface PCIe 4.0 x16

Clocks

Base clock 1000 MHz
Boost clock 1700 MHz
Memory clock 1600 MHz 3.2 Gbps effective 1250 MHz 5 Gbps effective
GPU clock 723 MHz

Memory Configuration

Memory size 128 GB 4 GB
Memory type HBM2E GDDR5
Memory bus width 8192 bit 256 bit
Bandwidth 3,277 GB/s 160.0 GB/s

Render Configuration

Shading units 14080 2048
TMUs 880 128
ROPs 0 32
Compute units 220 32
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 16 MB 512 KB
gpu.details.mcm 2

Performance

Pixel rate 0 MPixel/s 23.14 GPixel/s
Texture rate 1,496 GTexel/s 92.54 GTexel/s
FP16 (half) performance 383.0 TFLOPS (8:1) 2.961 TFLOPS (1:1)
FP32 (float) performance 47.87 TFLOPS 2.961 TFLOPS
FP64 (double) performance 47.87 TFLOPS (1:1) 185.1 GFLOPS (1:16)

Dimensions & Outputs

Slot width Dual-slot MXM Module
Length 267 mm 10.5 inches
Width 111 mm 4.4 inches
TDP 500 W 250 W
Suggested PSU 900 W
Outputs No outputs No outputs
Power connectors 2x 8-pin None

API Support & Features

DirectX 12 (12_0)
OpenGL 4.6
OpenCL 3.0 2.0
Vulkan 1.2
Shader model 6.3

Other Features

Mobile graphics

Release date Nov 23rd, 2014
Generation Crystal System (R9 M200)
Production End-of-life
Interface MXM-B (3.0)
Predecessor Solar System
Successor Mobility Radeon

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