AMD Radeon HD 6970M Mac Edition vs AMD Radeon E9171 MCM

VS

AMD Radeon HD 6970M Mac Edition AMD Radeon E9171 MCM

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 4GB VRAM Radeon E9171 MCM 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 96.00GB/s)

448 additional rendering cores

AMD Radeon E9171 MCM 's Advantages

Released 6 years and 2 months late

Boost Clock1219MHz

More VRAM (4GB vs 2GB)

Lower TDP (40W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition +4%

1.306 TFLOPS

Radeon E9171 MCM

1.248 TFLOPS

Radeon HD 6970M Mac Edition

VS

Radeon E9171 MCM

Graphics Card

Aug 2011

Release Date

Oct 2017

Vancouver

Generation

Embedded

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1124 MHz

-

Boost Clock

1219 MHz

900 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

12

Compute Units

8

960

Shading Units

512

48

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

21.76 GPixel/s

Pixel Rate

19.50 GPixel/s

32.64 GTexel/s

Texture Rate

39.01 GTexel/s

-

FP16 (half)

1248 GFLOPS

1306 GFLOPS

FP32 (float)

1248 GFLOPS

-

FP64 (double)

78.02 GFLOPS

Graphics Processor

Blackcomb

GPU Name

Lexa

Blackcomb XT (216-0811000)

GPU Variant

Lexa MCM Pro

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.7 billion

Transistors

2.2 billion

212 mm²

Die Size

103 mm²

Board Design

75W

TDP

40W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

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

-

CUDA

-

5.0

Shader Model

6.4

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