AMD Radeon R9 M395 Mac Edition vs AMD Radeon R9 M290X

VS

AMD Radeon R9 M395 Mac Edition

AMD Radeon R9 M290X

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M395 Mac Edition and 4GB VRAM Radeon R9 M290X 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

Released 1 years and 4 months late

Larger VRAM bandwidth (174.7GB/s vs 153.6GB/s)

512 additional rendering cores

AMD Radeon R9 M290X 's Advantages

Boost Clock900MHz

More VRAM (4GB vs 2GB)

Lower TDP (100W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395 Mac Edition +29%

2.989 TFLOPS

Radeon R9 M290X

2.304 TFLOPS

Radeon R9 M395 Mac Edition

VS

Radeon R9 M290X

Graphics Card

May 2015

Release Date

Jan 2014

Crystal System

Generation

Crystal System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

900 MHz

1365 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

153.6GB/s

Render Config

28

Compute Units

20

-

1792

Shading Units

1280

112

TMUs

80

32

ROPs

32

-

L1 Cache

16 KB (per CU)

-

L2 Cache

512 KB

-

Theoretical Performance

26.69 GPixel/s

Pixel Rate

28.80 GPixel/s

93.41 GTexel/s

Texture Rate

72.00 GTexel/s

-

2.989 TFLOPS

FP32 (float)

2.304 TFLOPS

373.6 GFLOPS

FP64 (double)

144.0 GFLOPS

Board Design

250W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Neptune

Amethyst PRO (216-0872004)

GPU Variant

Neptune XT (216-0847000)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

2.8 billion

366 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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