AMD Radeon R9 M395 Mac Edition vs AMD Radeon R9 M280X

VS

AMD Radeon R9 M395 Mac Edition

AMD Radeon R9 M280X

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M395 Mac Edition and 4GB VRAM Radeon R9 M280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395 Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 88.00GB/s)

896 additional rendering cores

AMD Radeon R9 M280X 's Advantages

Boost Clock1000MHz

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon R9 M395 Mac Edition +66%

2.989 TFLOPS

Radeon R9 M280X

1.792 TFLOPS

Radeon R9 M395 Mac Edition

VS

Radeon R9 M280X

Graphics Card

May 2015

Release Date

Feb 2015

Crystal System

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

1000 MHz

1365 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

88.00GB/s

Render Config

28

Compute Units

14

-

1792

Shading Units

896

112

TMUs

56

32

ROPs

16

-

L1 Cache

16 KB (per CU)

-

L2 Cache

256 KB

-

Theoretical Performance

26.69 GPixel/s

Pixel Rate

16.00 GPixel/s

93.41 GTexel/s

Texture Rate

56.00 GTexel/s

-

2.989 TFLOPS

FP32 (float)

1.792 TFLOPS

373.6 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

250W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

Saturn

Amethyst PRO (216-0872004)

GPU Variant

Saturn XT (216-0843024)

GCN 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

2.08 billion

366 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2.170

-

6.3

Shader Model

6.5

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