AMD Radeon R9 M395 Mac Edition vs AMD Radeon Pro 580X

VS

AMD Radeon R9 M395 Mac Edition

AMD Radeon Pro 580X

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M395 Mac Edition and 8GB VRAM Radeon Pro 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 580X 's Advantages

Released 3 years and 10 months late

Boost Clock1200MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (218.9GB/s vs 174.7GB/s)

512 additional rendering cores

Lower TDP (185W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395 Mac Edition

2.989 TFLOPS

Radeon Pro 580X +85%

5.53 TFLOPS

Radeon R9 M395 Mac Edition

VS

Radeon Pro 580X

Graphics Card

May 2015

Release Date

Mar 2019

Crystal System

Generation

Radeon Pro Mac

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1200 MHz

1365 MHz

Memory Clock

1710 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

218.9GB/s

Render Config

28

Compute Units

36

-

1792

Shading Units

2304

112

TMUs

144

32

ROPs

32

-

L1 Cache

16 KB (per CU)

-

L2 Cache

2 MB

-

Theoretical Performance

26.69 GPixel/s

Pixel Rate

38.40 GPixel/s

93.41 GTexel/s

Texture Rate

172.8 GTexel/s

-

FP16 (half)

5.530 TFLOPS

2.989 TFLOPS

FP32 (float)

5.530 TFLOPS

373.6 GFLOPS

FP64 (double)

345.6 GFLOPS

Board Design

250W

TDP

185W

-

No outputs

Outputs

2x HDMI 2.0b

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Ellesmere

Amethyst PRO (216-0872004)

GPU Variant

Ellesmere XTA (216-0886220)

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

5.7 billion

366 mm²

Die Size

232 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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