AMD Radeon R9 M485X vs AMD Radeon Pro Vega 20

VS

AMD Radeon R9 M485X

AMD Radeon Pro Vega 20

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M485X and 4GB VRAM Radeon Pro Vega 20 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M485X 's Advantages

More VRAM (8GB vs 4GB)

768 additional rendering cores

AMD Radeon Pro Vega 20 's Advantages

Released 2 years and 6 months late

Boost Clock1283MHz

Larger VRAM bandwidth (189.4GB/s vs 160.0GB/s)

Lower TDP (100W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M485X

2.961 TFLOPS

Radeon Pro Vega 20 +10%

3.284 TFLOPS

Radeon R9 M485X

VS

Radeon Pro Vega 20

Graphics Card

May 2016

Release Date

Nov 2018

Crystal System

Generation

Radeon Pro Mac

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

815 MHz

-

Boost Clock

1283 MHz

1250 MHz

Memory Clock

740 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

HBM2

256bit

Memory Bus

1024bit

160.0GB/s

Bandwidth

189.4GB/s

Render Config

32

Compute Units

20

-

2048

Shading Units

1280

128

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

41.06 GPixel/s

92.54 GTexel/s

Texture Rate

102.6 GTexel/s

2.961 TFLOPS

FP16 (half)

6.569 TFLOPS

2.961 TFLOPS

FP32 (float)

3.284 TFLOPS

185.1 GFLOPS

FP64 (double)

205.3 GFLOPS

Board Design

250W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

Vega 12

Amethyst XT

GPU Variant

Vega 12 XTA

GCN 3.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

Unknown

366 mm²

Die Size

Unknown

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.3

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