AMD Radeon Pro 580 vs AMD Radeon R9 M390X

VS

AMD Radeon Pro 580

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 8GB VRAM Radeon Pro 580 and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 580 's Advantages

Released 2 years and 1 months late

Boost Clock1200MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (217.0GB/s vs 160.0GB/s)

256 additional rendering cores

AMD Radeon R9 M390X 's Advantages

Lower TDP (75W vs 185W)

Score

Benchmark

FP32 (float)

Radeon Pro 580 +86%

5.53 TFLOPS

Radeon R9 M390X

2.961 TFLOPS

Radeon Pro 580

VS

Radeon R9 M390X

Graphics Card

Jun 2017

Release Date

May 2015

Radeon Pro Mac

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1200 MHz

Boost Clock

-

1695 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

217.0GB/s

Bandwidth

160.0GB/s

Render Config

36

Compute Units

32

-

2304

Shading Units

2048

144

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

38.40 GPixel/s

Pixel Rate

23.14 GPixel/s

172.8 GTexel/s

Texture Rate

92.54 GTexel/s

5.530 TFLOPS

FP16 (half)

2.961 TFLOPS

5.530 TFLOPS

FP32 (float)

2.961 TFLOPS

345.6 GFLOPS

FP64 (double)

185.1 GFLOPS

Board Design

185W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Ellesmere

GPU Name

Amethyst

Ellesmere XTA (216-0886220)

GPU Variant

Amethyst XT

GCN 4.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

5 billion

232 mm²

Die Size

366 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

6.4

Shader Model

6.3

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