AMD Radeon HD 7970M vs NVIDIA GeForce GT 555M

VS

AMD Radeon HD 7970M

NVIDIA GeForce GT 555M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7970M and 2GB VRAM GeForce GT 555M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970M 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 28.80GB/s)

1136 additional rendering cores

NVIDIA GeForce GT 555M 's Advantages

Lower TDP (35W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 7970M +459%

2.176 TFLOPS

GeForce GT 555M

0.389 TFLOPS

Radeon HD 7970M

VS

GeForce GT 555M

Graphics Card

Apr 2012

Release Date

Mar 2012

London

Generation

GeForce 500M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

28.80GB/s

Render Config

20

Compute Units

-

SM Count

2

1280

Shading Units

144

80

TMUs

24

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

2.700 GPixel/s

68.00 GTexel/s

Texture Rate

16.20 GTexel/s

-

2.176 TFLOPS

FP32 (float)

388.8 GFLOPS

136.0 GFLOPS

FP64 (double)

32.40 GFLOPS

Board Design

100W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Wimbledon

GPU Name

GF116

Wimbledon XT (216-0836036)

GPU Variant

N12E-GE2-A1

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.17 billion

212 mm²

Die Size

238 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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