AMD Radeon HD 6970M Mac Edition vs AMD Radeon R9 M280X

VS

AMD Radeon HD 6970M Mac Edition

AMD Radeon R9 M280X

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 4GB VRAM Radeon R9 M280X 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

Larger VRAM bandwidth (115.2GB/s vs 88.00GB/s)

64 additional rendering cores

AMD Radeon R9 M280X 's Advantages

Released 3 years and 6 months late

Boost Clock1000MHz

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition

1.306 TFLOPS

Radeon R9 M280X +37%

1.792 TFLOPS

Radeon HD 6970M Mac Edition

VS

Radeon R9 M280X

Graphics Card

Aug 2011

Release Date

Feb 2015

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

1000 MHz

900 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

88.00GB/s

Render Config

12

Compute Units

14

-

960

Shading Units

896

48

TMUs

56

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

16.00 GPixel/s

32.64 GTexel/s

Texture Rate

56.00 GTexel/s

-

1306 GFLOPS

FP32 (float)

1.792 TFLOPS

-

FP64 (double)

112.0 GFLOPS

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

Saturn

Blackcomb XT (216-0811000)

GPU Variant

Saturn XT (216-0843024)

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.08 billion

212 mm²

Die Size

160 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5

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