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

VS

AMD Radeon HD 6970M Rebrand

AMD Radeon R9 M395X Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M Rebrand 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 Rebrand 's Advantages

Lower TDP (75W vs 250W)

AMD Radeon R9 M395X Mac Edition 's Advantages

Released 4 years and 4 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 64.00GB/s)

1248 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6970M Rebrand

1.28 TFLOPS

Radeon R9 M395X Mac Edition +190%

3.723 TFLOPS

Radeon HD 6970M Rebrand

VS

Radeon R9 M395X Mac Edition

Graphics Card

Jan 2011

Release Date

May 2015

Vancouver

Generation

Crystal System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

1365 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

174.7GB/s

Render Config

10

Compute Units

32

-

800

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

29.09 GPixel/s

32.00 GTexel/s

Texture Rate

116.4 GTexel/s

-

FP16 (half)

3.723 TFLOPS

1280 GFLOPS

FP32 (float)

3.723 TFLOPS

-

FP64 (double)

232.7 GFLOPS

Board Design

75W

TDP

250W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Broadway

GPU Name

Amethyst

Broadway XT

GPU Variant

Amethyst XT

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

5 billion

166 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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