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

VS

AMD Radeon R9 M395X

AMD Radeon HD 6970M Mac Edition

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M395X and 2GB VRAM Radeon HD 6970M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X 's Advantages

Released 3 years and 9 months late

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 115.2GB/s)

1088 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M395X +126%

2.961 TFLOPS

Radeon HD 6970M Mac Edition

1.306 TFLOPS

Radeon R9 M395X

VS

Radeon HD 6970M Mac Edition

Graphics Card

May 2015

Release Date

Aug 2011

Crystal System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1250 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

115.2GB/s

Render Config

32

Compute Units

12

-

2048

Shading Units

960

128

TMUs

48

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

21.76 GPixel/s

92.54 GTexel/s

Texture Rate

32.64 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

1306 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Blackcomb

Amethyst XT

GPU Variant

Blackcomb XT (216-0811000)

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

1.7 billion

366 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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