AMD Radeon Pro 580X vs AMD Radeon R9 M295X Mac Edition

VS

AMD Radeon Pro 580X

AMD Radeon R9 M295X Mac Edition

We compared two Mobile platform GPUs: 8GB VRAM Radeon Pro 580X and 4GB VRAM Radeon R9 M295X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 580X 's Advantages

Released 4 years and 4 months late

Boost Clock1200MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (218.9GB/s vs 174.3GB/s)

256 additional rendering cores

Lower TDP (185W vs 250W)

Score

Benchmark

FP32 (float)

Radeon Pro 580X +58%

5.53 TFLOPS

Radeon R9 M295X Mac Edition

3.482 TFLOPS

Radeon Pro 580X

VS

Radeon R9 M295X Mac Edition

Graphics Card

Mar 2019

Release Date

Nov 2014

Radeon Pro Mac

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1100 MHz

Base Clock

-

1200 MHz

Boost Clock

-

1710 MHz

Memory Clock

1362 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

218.9GB/s

Bandwidth

174.3GB/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

27.20 GPixel/s

172.8 GTexel/s

Texture Rate

108.8 GTexel/s

5.530 TFLOPS

FP16 (half)

3.482 TFLOPS

5.530 TFLOPS

FP32 (float)

3.482 TFLOPS

345.6 GFLOPS

FP64 (double)

217.6 GFLOPS

Board Design

185W

TDP

250W

-

2x HDMI 2.0b

Outputs

No outputs

None

Power Connectors

-

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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