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AMD Amethyst

Default
Amethyst
Amethyst PRO
Amethyst PRO
E8950
E8950
Block Diagram
Block Diagram
AMD's Amethyst GPU uses the GCN 3.0 architecture and is made using a 28 nm production process at TSMC. With a die size of 366 mm² and a transistor count of 5,000 million it is a large chip. Amethyst supports DirectX 12 (Feature Level 12_0). For GPU compute applications, OpenCL version 2.0 can be used. It features 2048 shading units, 128 texture mapping units and 32 ROPs.
Further reading: GCN 3.0 Instruction Set Architecture

Graphics Processor

GPU Name
Amethyst
Architecture
GCN 3.0
Foundry
TSMC
Process Size
28 nm
Transistors
5,000 million
Density
13.7M / mm²
Die Size
366 mm²
Released
Nov 23rd, 2014

Graphics Features

DirectX
12 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2
Shader Model
6.3
Compute
GFX8
ROCm
Yes

Render Config

Shading Units
2048
TMUs
128
ROPs
32
Compute Units
32
Z-Stencil
128
ACEs
8
GEs
4
L1 Cache
16 KB per CU
L2 Cache
512 KB
Max. TDP
250 W

All GCN 3.0 GPUs

AMD GPU Architecture History

Graphics cards using the AMD Amethyst GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
AMD Radeon R9 M295X Mac Edition Amethyst XT 4 GB 2048 128 32 850 MHz 1362 MHz
AMD Radeon R9 M295X Amethyst XT 4 GB 2048 128 32 723 MHz 1250 MHz
AMD Radeon R9 M390X Amethyst XT 4 GB 2048 128 32 723 MHz 1250 MHz
AMD Radeon E8950 E8950 8 GB 2048 128 32 735 MHz 1500 MHz
AMD FirePro W7170M Amethyst XT GL 4 GB 2048 128 32 723 MHz 1250 MHz
AMD Radeon R9 M395X Mac Edition Amethyst XT 4 GB 2048 128 32 909 MHz 1365 MHz
AMD Radeon R9 M485X Amethyst XT 8 GB 2048 128 32 723 MHz 1250 MHz
AMD FirePro S7100X Amethyst XT 8 GB 2048 128 32 725 MHz 1250 MHz
AMD Radeon R9 M395 Mac Edition Amethyst PRO 2 GB 1792 112 32 834 MHz 1365 MHz
AMD Radeon R9 M395X Amethyst XT 8 GB 2048 128 32 723 MHz 1250 MHz

Amethyst GPU Notes

Architecture Codename: Volcanic Islands
Chip Variant: Tonga
CLRX Version: GCN 1.2
Graphics/Compute: GFX8 (gfx802)
Display Core Engine: 10.0
Unified Video Decoder: 5.0
Video Compression Engine: 3.0