AMD Radeon HD 6970M Mac Edition vs NVIDIA GeForce GT 640M LE

VS

AMD Radeon HD 6970M Mac Edition NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 2GB VRAM GeForce GT 640M LE 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 50.24GB/s)

864 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Released 9 months late

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition +351%

1.306 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

Radeon HD 6970M Mac Edition

VS

GeForce GT 640M LE

Graphics Card

Aug 2011

Release Date

May 2012

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

785 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

50.24GB/s

Render Config

-

SM Count

2

12

Compute Units

-

960

Shading Units

96

48

TMUs

16

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

Theoretical Performance

21.76 GPixel/s

Pixel Rate

3.012 GPixel/s

32.64 GTexel/s

Texture Rate

12.05 GTexel/s

-

FP16 (half)

-

1306 GFLOPS

FP32 (float)

289.0 GFLOPS

-

FP64 (double)

24.08 GFLOPS

Graphics Processor

Blackcomb

GPU Name

GF108

Blackcomb XT (216-0811000)

GPU Variant

-

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.585 billion

212 mm²

Die Size

116 mm²

Board Design

75W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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