AMD Radeon R9 M290X vs AMD Radeon R9 M395 Mac Edition

VS

AMD Radeon R9 M290X

AMD Radeon R9 M395 Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M290X and 2GB VRAM Radeon R9 M395 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M290X 's Advantages

Boost Clock900MHz

More VRAM (4GB vs 2GB)

Lower TDP (100W vs 250W)

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

Score

Benchmark

FP32 (float)

Radeon R9 M290X

2.304 TFLOPS

Radeon R9 M395 Mac Edition +29%

2.989 TFLOPS

Radeon R9 M290X

VS

Radeon R9 M395 Mac Edition

Graphics Card

Jan 2014

Release Date

May 2015

Crystal System

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1200 MHz

Memory Clock

1365 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

174.7GB/s

Render Config

20

Compute Units

28

-

1280

Shading Units

1792

80

TMUs

112

32

ROPs

32

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

26.69 GPixel/s

72.00 GTexel/s

Texture Rate

93.41 GTexel/s

-

2.304 TFLOPS

FP32 (float)

2.989 TFLOPS

144.0 GFLOPS

FP64 (double)

373.6 GFLOPS

Board Design

100W

TDP

250W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Neptune

GPU Name

Amethyst

Neptune XT (216-0847000)

GPU Variant

Amethyst PRO (216-0872004)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

5 billion

212 mm²

Die Size

366 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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