AMD Radeon R9 M395X Mac Edition vs AMD Radeon Pro 455

VS

AMD Radeon R9 M395X Mac Edition AMD Radeon Pro 455

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 2GB VRAM Radeon Pro 455 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X Mac Edition 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.7GB/s vs 81.28GB/s)

1280 additional rendering cores

AMD Radeon Pro 455 's Advantages

Released 1 years and 5 months late

Lower TDP (35W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +183%

3.723 TFLOPS

Radeon Pro 455

1.313 TFLOPS

Radeon R9 M395X Mac Edition

VS

Radeon Pro 455

Graphics Card

May 2015

Release Date

Oct 2016

Crystal System

Generation

Radeon Pro Mac

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

-

Boost Clock

-

1365 MHz

Memory Clock

1270 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

81.28GB/s

Render Config

-

SM Count

-

32

Compute Units

12

2048

Shading Units

768

128

TMUs

48

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

Theoretical Performance

29.09 GPixel/s

Pixel Rate

13.68 GPixel/s

116.4 GTexel/s

Texture Rate

41.04 GTexel/s

3.723 TFLOPS

FP16 (half)

1313 GFLOPS

3.723 TFLOPS

FP32 (float)

1313 GFLOPS

232.7 GFLOPS

FP64 (double)

82.08 GFLOPS

Graphics Processor

Amethyst

GPU Name

Baffin

Amethyst XT

GPU Variant

Baffin PRO

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

3 billion

366 mm²

Die Size

123 mm²

Board Design

250W

TDP

35W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.4

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