AMD Radeon R9 M395X Mac Edition vs AMD Radeon HD 7670A

VS

AMD Radeon R9 M395X Mac Edition

AMD Radeon HD 7670A

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 1024MB VRAM Radeon HD 7670A 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 3 years and 4 months late

More VRAM (4GB vs 1024GB)

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

1568 additional rendering cores

AMD Radeon HD 7670A 's Advantages

Lower TDP (45W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition +546%

3.723 TFLOPS

Radeon HD 7670A

0.576 TFLOPS

Radeon R9 M395X Mac Edition

VS

Radeon HD 7670A

Graphics Card

May 2015

Release Date

Jan 2012

Crystal System

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1365 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

64.00GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

480

128

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.09 GPixel/s

Pixel Rate

4.800 GPixel/s

116.4 GTexel/s

Texture Rate

14.40 GTexel/s

3.723 TFLOPS

FP16 (half)

-

3.723 TFLOPS

FP32 (float)

576.0 GFLOPS

232.7 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

45W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

Turks

Amethyst XT

GPU Variant

Turks XT (215-0803000)

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

0.716 billion

366 mm²

Die Size

118 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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