AMD Radeon HD 6970M Mac Edition vs NVIDIA GeForce GTX 660M Mac Edition

VS

AMD Radeon HD 6970M Mac Edition NVIDIA GeForce GTX 660M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 512MB VRAM GeForce GTX 660M Mac Edition 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 80.00GB/s)

576 additional rendering cores

NVIDIA GeForce GTX 660M Mac Edition 's Advantages

Released 1 years and 8 months late

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Mac Edition +78%

1.306 TFLOPS

GeForce GTX 660M Mac Edition

0.73 TFLOPS

Radeon HD 6970M Mac Edition

VS

GeForce GTX 660M Mac Edition

Graphics Card

Aug 2011

Release Date

Apr 2013

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

80.00GB/s

Render Config

-

SM Count

-

12

Compute Units

-

960

Shading Units

384

48

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

Theoretical Performance

21.76 GPixel/s

Pixel Rate

7.600 GPixel/s

32.64 GTexel/s

Texture Rate

30.40 GTexel/s

-

FP16 (half)

-

1306 GFLOPS

FP32 (float)

729.6 GFLOPS

-

FP64 (double)

30.40 GFLOPS

Graphics Processor

Blackcomb

GPU Name

GK107

Blackcomb XT (216-0811000)

GPU Variant

-

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

1.27 billion

212 mm²

Die Size

118 mm²

Board Design

75W

TDP

50W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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