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AMD Radeon R9 M485X

Graphics Processor
Amethyst
Cores
2048
TMUs
128
ROPs
32
Memory Size
8 GB
Memory Type
GDDR5
Bus Width
256 bit
The Radeon R9 M485X is a graphics card by AMD, launched in May 2016. 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 8,192 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 723 MHz, memory is running at 1250 MHz.
Being a mxm module card, the AMD Radeon R9 M485X does not require any additional power connector, 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

Mobile Graphics

Release Date
May 15th, 2016
Generation
Crystal System
(R9 M400)
Production
Active
Bus Interface
MXM-B (3.0)

Relative Performance

4%
GeForce 210
5%
GeForce 9400 GT
6%
Radeon HD 4550
8%
Radeon HD 5450
9%
Radeon HD 6450
10%
GeForce GT 520
12%
GeForce GT 220
15%
GeForce GT 430
16%
Radeon HD 5570
17%
Radeon HD 4670
18%
GeForce GT 440
18%
GeForce GT 240
21%
GeForce 9600 GT
22%
Radeon HD 5670
24%
GeForce GT 640
25%
GeForce 9800 GT
26%
Radeon HD 6670
26%
Radeon HD 4830
28%
Radeon HD 4770
30%
Radeon HD 4850
30%
GeForce GTS 250
31%
GeForce GTS 450
32%
Radeon HD 5750
37%
Radeon HD 7750
37%
Radeon HD 5770
38%
GeForce GTX 260
38%
Radeon HD 4870
39%
Radeon Vega 8
39%
GeForce GTX 550 Ti
39%
GeForce GTX 650
42%
Radeon HD 5830
44%
Radeon HD 6790
44%
Radeon HD 4890
46%
GeForce GTX 460
46%
Radeon RX Vega 11
47%
GeForce GT 1030
47%
GeForce GTX 275
47%
Radeon HD 7770 GHz Edition
48%
GeForce GTX 280
48%
GeForce GTX 465
51%
Radeon HD 6850
52%
GeForce GTX 285
56%
Radeon HD 5850
57%
GeForce GTX 650 Ti
57%
Radeon HD 7790
59%
Radeon RX 550
59%
GeForce GTX 470
61%
Radeon HD 6870
65%
Radeon HD 5870
67%
GeForce GTX 560 Ti
68%
Radeon HD 4870 X2
69%
GeForce GTX 750 Ti
69%
Radeon HD 6950
72%
GeForce GTX 295
73%
GeForce GTX 650 Ti Boost
73%
Radeon HD 7850
74%
GeForce GTX 480
78%
Radeon HD 6970
79%
Radeon R7 265
81%
Radeon RX 460
81%
Radeon R7 370
81%
GeForce GTX 660
81%
GeForce GTX 570
83%
Radeon RX 560
88%
GeForce GTX 950
88%
Radeon HD 7870 GHz Edition
91%
Radeon R9 270X
92%
GeForce GTX 660 Ti
92%
GeForce GTX 580
93%
GeForce GTX 1050
93%
Radeon HD 7950
95%
Radeon HD 5970
98%
GeForce GTX 760
100%
Radeon R9 M485X
105%
GeForce GTX 670
108%
GeForce GTX 960
110%
Radeon R9 380
111%
Radeon R9 285
112%
Radeon HD 7970
113%
GeForce GTX 680
116%
GeForce GTX 1050 Ti
119%
GeForce GTX 770
122%
Radeon HD 6990
125%
Radeon R9 280X
126%
GeForce GTX 590
127%
Radeon HD 7970 GHz Edition
140%
GeForce GTX 780
145%
GeForce GTX 1650
154%
Radeon RX 470
156%
Radeon R9 290
165%
Radeon RX 570
167%
Radeon R9 390
168%
Radeon R9 290X
170%
GeForce GTX 970
172%
GeForce GTX TITAN
175%
GeForce GTX 780 Ti
177%
Radeon R9 390X
178%
Radeon HD 7990
179%
Radeon RX 480
180%
GeForce GTX 690
190%
Radeon RX 580
194%
GeForce GTX 980
196%
Radeon R9 FURY
196%
GeForce GTX 1060 6 GB
205%
Radeon RX 590
216%
Radeon R9 295X2
217%
GeForce GTX 1660
220%
Radeon R9 FURY X
223%
GeForce GTX 980 Ti
229%
GeForce GTX TITAN X
249%
GeForce GTX 1660 Ti
249%
GeForce GTX 1070
265%
Radeon RX Vega 56
282%
GeForce GTX 1070 Ti
290%
Radeon RX Vega 64
294%
GeForce GTX 1080
294%
GeForce RTX 2060
306%
Radeon RX 5700
330%
GeForce RTX 2060 SUPER
342%
GeForce RTX 2070
350%
Radeon RX 5700 XT
354%
Radeon VII
363%
TITAN X Pascal
374%
GeForce GTX 1080 Ti
378%
GeForce RTX 2070 SUPER
402%
GeForce RTX 2080
426%
GeForce RTX 2080 SUPER
471%
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
723 MHz
Memory Clock
1250 MHz
5000 MHz effective

Memory

Memory Size
8 GB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
160.0 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
23.14 GPixel/s
Texture Rate
92.54 GTexel/s
FP16 (half) performance
2.961 TFLOPS (1:1)
FP32 (float) performance
2.961 TFLOPS
FP64 (double) performance
185.1 GFLOPS (1:16)

Board Design

Slot Width
MXM Module
TDP
250 W
Outputs
No outputs
Power Connectors
None

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.1.119
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