AMD Radeon Pro 555 vs AMD Radeon R9 M395X Mac Edition

VS

AMD Radeon Pro 555

AMD Radeon R9 M395X Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 555 and 4GB VRAM Radeon R9 M395X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555 's Advantages

Released 2 years and 1 months late

Lower TDP (75W vs 250W)

AMD Radeon R9 M395X Mac Edition 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.7GB/s vs 81.60GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro 555

1.306 TFLOPS

Radeon R9 M395X Mac Edition +185%

3.723 TFLOPS

Radeon Pro 555

VS

Radeon R9 M395X Mac Edition

Graphics Card

Jun 2017

Release Date

May 2015

Radeon Pro Mac

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1275 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

81.60GB/s

Bandwidth

174.7GB/s

Render Config

12

Compute Units

32

-

768

Shading Units

2048

48

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

29.09 GPixel/s

40.80 GTexel/s

Texture Rate

116.4 GTexel/s

1306 GFLOPS

FP16 (half)

3.723 TFLOPS

1306 GFLOPS

FP32 (float)

3.723 TFLOPS

81.60 GFLOPS

FP64 (double)

232.7 GFLOPS

Board Design

75W

TDP

250W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 21

GPU Name

Amethyst

Polaris 21 PRO

GPU Variant

Amethyst XT

GCN 4.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

5 billion

123 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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