AMD Radeon R9 M395X Mac Edition vs AMD Radeon HD 8970M

VS

AMD Radeon R9 M395X Mac Edition

AMD Radeon HD 8970M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 4GB VRAM Radeon HD 8970M 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

Released 2 years late

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

768 additional rendering cores

AMD Radeon HD 8970M 's Advantages

Boost Clock900MHz

Lower TDP (100W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +61%

3.723 TFLOPS

Radeon HD 8970M

2.304 TFLOPS

Radeon R9 M395X Mac Edition

VS

Radeon HD 8970M

Graphics Card

May 2015

Release Date

May 2013

Crystal System

Generation

Solar 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

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

153.6GB/s

Render Config

32

Compute Units

20

-

2048

Shading Units

1280

128

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

29.09 GPixel/s

Pixel Rate

28.80 GPixel/s

116.4 GTexel/s

Texture Rate

72.00 GTexel/s

3.723 TFLOPS

FP16 (half)

-

3.723 TFLOPS

FP32 (float)

2.304 TFLOPS

232.7 GFLOPS

FP64 (double)

144.0 GFLOPS

Board Design

250W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

Neptune

Amethyst XT

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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