AMD Radeon HD 6970M Mac Edition vs AMD Radeon R9 M395X Mac Edition

VS

AMD Radeon HD 6970M Mac Edition

AMD Radeon R9 M395X Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 4GB VRAM Radeon R9 M395X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M Mac Edition 's Advantages

Lower TDP (75W vs 250W)

AMD Radeon R9 M395X Mac Edition 's Advantages

Released 3 years and 9 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.7GB/s vs 115.2GB/s)

1088 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition

1.306 TFLOPS

Radeon R9 M395X Mac Edition +185%

3.723 TFLOPS

Radeon HD 6970M Mac Edition

VS

Radeon R9 M395X Mac Edition

Graphics Card

Aug 2011

Release Date

May 2015

Vancouver

Generation

Crystal System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

900 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

174.7GB/s

Render Config

12

Compute Units

32

-

960

Shading Units

2048

48

TMUs

128

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

29.09 GPixel/s

32.64 GTexel/s

Texture Rate

116.4 GTexel/s

-

FP16 (half)

3.723 TFLOPS

1306 GFLOPS

FP32 (float)

3.723 TFLOPS

-

FP64 (double)

232.7 GFLOPS

Board Design

75W

TDP

250W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Blackcomb

GPU Name

Amethyst

Blackcomb XT (216-0811000)

GPU Variant

Amethyst XT

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

5 billion

212 mm²

Die Size

366 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

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