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AMD Radeon R9 M295X Mac Edition

Graphics Processor
Amethyst
Cores
2048
TMUs
128
ROPs
32
Memory Size
4 GB
Memory Type
GDDR5
Bus Width
256 bit
The Radeon R9 M295X Mac Edition was a mobile graphics chip 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 chip supports DirectX 12. This ensures that all modern games will run on Radeon R9 M295X Mac Edition. 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 paired 4 GB GDDR5 memory with the Radeon R9 M295X Mac Edition, 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. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device.

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

Mobile Graphics

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

Relative Performance

3%
GeForce 210
4%
GeForce 9400 GT
5%
Radeon HD 4550
7%
Radeon HD 5450
8%
Radeon HD 6450
8%
GeForce GT 520
10%
GeForce GT 220
13%
GeForce GT 430
13%
Radeon HD 5570
14%
Radeon HD 4670
15%
GeForce GT 440
15%
GeForce GT 240
18%
GeForce 9600 GT
19%
Radeon HD 5670
20%
GeForce GT 640
21%
GeForce 9800 GT
22%
Radeon HD 6670
22%
Radeon HD 4830
24%
Radeon HD 4770
25%
Radeon HD 4850
26%
GeForce GTS 250
27%
GeForce GTS 450
28%
Radeon HD 5750
31%
Radeon HD 7750
32%
Radeon HD 5770
32%
GeForce GTX 260
33%
Radeon HD 4870
33%
Radeon Vega 8
33%
GeForce GTX 550 Ti
33%
GeForce GTX 650
35%
Radeon HD 5830
37%
Radeon HD 6790
38%
Radeon HD 4890
39%
GeForce GTX 460
39%
Radeon RX Vega 11
40%
GeForce GT 1030
40%
GeForce GTX 275
40%
Radeon HD 7770 GHz Edition
40%
GeForce GTX 280
41%
GeForce GTX 465
43%
Radeon HD 6850
44%
GeForce GTX 285
47%
Radeon HD 5850
48%
GeForce GTX 650 Ti
48%
Radeon HD 7790
50%
Radeon RX 550
50%
GeForce GTX 470
52%
Radeon HD 6870
56%
Radeon HD 5870
57%
GeForce GTX 560 Ti
58%
Radeon HD 4870 X2
59%
GeForce GTX 750 Ti
59%
Radeon HD 6950
61%
GeForce GTX 295
62%
GeForce GTX 650 Ti Boost
62%
Radeon HD 7850
63%
GeForce GTX 480
66%
Radeon HD 6970
68%
Radeon R7 265
69%
Radeon RX 460
69%
Radeon R7 370
69%
GeForce GTX 660
69%
GeForce GTX 570
70%
Radeon RX 560
75%
GeForce GTX 950
75%
Radeon HD 7870 GHz Edition
77%
Radeon R9 270X
78%
GeForce GTX 660 Ti
78%
GeForce GTX 580
79%
GeForce GTX 1050
79%
Radeon HD 7950
81%
Radeon HD 5970
83%
GeForce GTX 760
89%
GeForce GTX 670
92%
GeForce GTX 960
94%
Radeon R9 380
95%
Radeon R9 285
95%
Radeon HD 7970
96%
GeForce GTX 680
99%
GeForce GTX 1050 Ti
100%
Radeon R9 M295X Mac Edition
101%
GeForce GTX 770
104%
Radeon HD 6990
106%
Radeon R9 280X
108%
GeForce GTX 590
108%
Radeon HD 7970 GHz Edition
119%
GeForce GTX 780
124%
GeForce GTX 1650
131%
Radeon RX 470
133%
Radeon R9 290
140%
Radeon RX 570
142%
Radeon R9 390
143%
Radeon R9 290X
145%
GeForce GTX 970
147%
GeForce GTX TITAN
149%
GeForce GTX 780 Ti
151%
Radeon R9 390X
151%
Radeon HD 7990
152%
Radeon RX 480
153%
GeForce GTX 690
157%
GeForce GTX 1060 6 GB
160%
Radeon RX 5500 OEM
162%
Radeon RX 580
163%
Radeon RX 5500 XT
165%
GeForce GTX 980
166%
GeForce GTX 1650 SUPER
167%
Radeon R9 FURY
174%
Radeon RX 590
184%
Radeon R9 295X2
185%
GeForce GTX 1660
187%
Radeon R9 FURY X
190%
GeForce GTX 980 Ti
195%
GeForce GTX TITAN X
207%
GeForce GTX 1660 SUPER
212%
GeForce GTX 1660 Ti
212%
GeForce GTX 1070
226%
Radeon RX Vega 56
239%
GeForce GTX 1070 Ti
246%
Radeon RX Vega 64
250%
GeForce GTX 1080
250%
GeForce RTX 2060
260%
Radeon RX 5700
281%
GeForce RTX 2060 SUPER
291%
GeForce RTX 2070
298%
Radeon RX 5700 XT
301%
Radeon VII
309%
TITAN X Pascal
318%
GeForce GTX 1080 Ti
322%
GeForce RTX 2070 SUPER
342%
GeForce RTX 2080
363%
GeForce RTX 2080 SUPER
400%
GeForce RTX 2080 Ti
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
L1 Cache
16 KB (per CU)
L2 Cache
512 KB

Theoretical Performance

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

Board Design

Slot Width
MXM Module
TDP
250 W
Outputs
No outputs

Graphics Features

DirectX
12 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2.131
Shader Model
6.3

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