AMD Radeon HD 7950M vs NVIDIA GeForce GTX 660M

VS

AMD Radeon HD 7950M

NVIDIA GeForce GTX 660M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7950M and 1024MB VRAM GeForce GTX 660M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (128.0GB/s vs 64.00GB/s)

896 additional rendering cores

NVIDIA GeForce GTX 660M 's Advantages

Boost Clock950MHz

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 7950M +145%

1.792 TFLOPS

GeForce GTX 660M

0.73 TFLOPS

Radeon HD 7950M

VS

GeForce GTX 660M

Graphics Card

Apr 2012

Release Date

Mar 2012

London

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

835 MHz

-

Boost Clock

950 MHz

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

64.00GB/s

Render Config

20

Compute Units

-

1280

Shading Units

384

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

22.40 GPixel/s

Pixel Rate

7.600 GPixel/s

56.00 GTexel/s

Texture Rate

30.40 GTexel/s

-

1.792 TFLOPS

FP32 (float)

729.6 GFLOPS

-

FP64 (double)

30.40 GFLOPS

Board Design

75W

TDP

50W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Wimbledon

GPU Name

GK107

Wimbledon PRO

GPU Variant

N13E-GE-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.27 billion

212 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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