Report an Error

AMD Radeon R9 M295X Mac Edition

Amethyst
Graphics Processor
2048
Cores
128
TMUs
32
ROPs
4 GB
Memory Size
GDDR5
Memory Type
256 bit
Bus Width
AMD Amethyst Photo
The Radeon R9 M295X Mac Edition was a graphics card by AMD, launched in November 2014. Built on the 28 nm process, and based on the Amethyst graphics processor, in its Amethyst XT variant, the card supports DirectX 12.0. The Amethyst graphics processor is a large chip with a die area of 366 mm² and 5,000 million transistors. It features 2048 shading units, 128 texture mapping units and 32 ROPs. AMD has placed 4,096 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 850 MHz, memory is running at 1362 MHz.
Being a mxm module card, its power draw is rated at 250 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it.

Graphics Processor

GPU Name
Amethyst
GPU Variant
Amethyst XT
Architecture
GCN 3.0
Foundry
TSMC
Process Size
28 nm
Transistors
5,000 million
Die Size
366 mm²

Graphics Card

Release Date
Nov 23rd, 2014
Generation
Crystal System
(R9 M200)
Production
End-of-life
Bus Interface
MXM-B (3.0)

Relative Performance

3%
4%
5%
7%
8%
8%
10%
13%
13%
14%
15%
15%
18%
19%
20%
21%
22%
22%
24%
25%
26%
27%
28%
31%
32%
32%
33%
33%
33%
33%
35%
37%
38%
39%
39%
40%
40%
40%
40%
41%
43%
44%
47%
48%
48%
50%
50%
52%
56%
57%
58%
59%
59%
61%
62%
62%
63%
66%
68%
69%
69%
69%
69%
75%
75%
77%
78%
78%
79%
79%
81%
81%
83%
89%
92%
94%
95%
95%
96%
99%
100%
Radeon R9 M295X Mac Edition
101%
104%
106%
108%
108%
119%
131%
133%
142%
143%
145%
147%
148%
149%
151%
151%
152%
153%
162%
165%
167%
167%
184%
187%
190%
204%
224%
232%
250%
250%
264%
295%
309%
317%
345%
393%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
850 MHz
Memory Clock
1362 MHz
5448 MHz effective

Memory

Memory Size
4 GB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
174.3 GB/s

Render Config

Shading Units
2048
TMUs
128
ROPs
32
Compute Units
32

Theoretical Performance

Pixel Rate
27.20 GPixel/s
Texture Rate
108.8 GTexel/s
FP16 (half) performance
3,482 GFLOPS (1:1)
FP32 (float) performance
3,482 GFLOPS
FP64 (double) performance
217.6 GFLOPS (1:16)

Board Design

Slot Width
MXM Module
TDP
250 W
Outputs
No outputs

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.5
OpenCL
2.0
Vulkan
1.1.82
Shader Model
6.0

Amethyst GPU Notes

Chip Variant: Tonga
Graphics/Compute: GFX8 (gfx802)
Display Core Engine: 10.0
Unified Video Decoder: 5.0
Video Compression Engine: 3.0
ROCm Support