AMD Radeon Pro Vega 20 vs AMD Radeon R9 M485X

VS

AMD Radeon Pro Vega 20

AMD Radeon R9 M485X

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

Main Differences

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)

AMD Radeon R9 M485X 's Advantages

More VRAM (8GB vs 4GB)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20 +10%

3.284 TFLOPS

Radeon R9 M485X

2.961 TFLOPS

Radeon Pro Vega 20

VS

Radeon R9 M485X

Graphics Card

Nov 2018

Release Date

May 2016

Radeon Pro Mac

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

815 MHz

Base Clock

-

1283 MHz

Boost Clock

-

740 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

8GB

HBM2

Memory Type

GDDR5

1024bit

Memory Bus

256bit

189.4GB/s

Bandwidth

160.0GB/s

Render Config

20

Compute Units

32

-

1280

Shading Units

2048

80

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

41.06 GPixel/s

Pixel Rate

23.14 GPixel/s

102.6 GTexel/s

Texture Rate

92.54 GTexel/s

6.569 TFLOPS

FP16 (half)

2.961 TFLOPS

3.284 TFLOPS

FP32 (float)

2.961 TFLOPS

205.3 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

100W

TDP

250W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Vega 12

GPU Name

Amethyst

Vega 12 XTA

GPU Variant

Amethyst XT

GCN 5.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

Unknown

Transistors

5 billion

Unknown

Die Size

366 mm²

Graphics Features

12 (12_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

6.3

Shader Model

6.3

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