AMD Radeon R9 M295X Mac Edition vs AMD Radeon HD 7670M Rebrand

VS

AMD Radeon R9 M295X Mac Edition

AMD Radeon HD 7670M Rebrand

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X Mac Edition and 1024MB VRAM Radeon HD 7670M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M295X Mac Edition 's Advantages

Released 2 years and 4 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (174.3GB/s vs 28.80GB/s)

1568 additional rendering cores

AMD Radeon HD 7670M Rebrand 's Advantages

Lower TDP (20W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M295X Mac Edition +504%

3.482 TFLOPS

Radeon HD 7670M Rebrand

0.576 TFLOPS

Radeon R9 M295X Mac Edition

VS

Radeon HD 7670M Rebrand

Graphics Card

Nov 2014

Release Date

Jul 2012

Crystal System

Generation

London

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1362 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

174.3GB/s

Bandwidth

28.80GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

480

128

TMUs

24

32

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

9.600 GPixel/s

108.8 GTexel/s

Texture Rate

14.40 GTexel/s

3.482 TFLOPS

FP16 (half)

-

3.482 TFLOPS

FP32 (float)

576.0 GFLOPS

217.6 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

20W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Amethyst

GPU Name

Whistler

Amethyst XT

GPU Variant

Whistler XT (216-0810001)

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

104 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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