NVIDIA GeForce GT 555M vs AMD Radeon HD 6630M Mac Edition

VS

NVIDIA GeForce GT 555M

AMD Radeon HD 6630M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 555M and 256MB VRAM Radeon HD 6630M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 555M 's Advantages

Released 1 years and 2 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (28.80GB/s vs 19.20GB/s)

AMD Radeon HD 6630M Mac Edition 's Advantages

336 additional rendering cores

Lower TDP (26W vs 35W)

Score

Benchmark

FP32 (float)

GeForce GT 555M

0.389 TFLOPS

Radeon HD 6630M Mac Edition +23%

0.48 TFLOPS

GeForce GT 555M

VS

Radeon HD 6630M Mac Edition

Graphics Card

Mar 2012

Release Date

Jan 2011

GeForce 500M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

600 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

19.20GB/s

Render Config

-

Compute Units

6

2

SM Count

-

144

Shading Units

480

24

TMUs

24

16

ROPs

8

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

2.700 GPixel/s

Pixel Rate

4.000 GPixel/s

16.20 GTexel/s

Texture Rate

12.00 GTexel/s

-

388.8 GFLOPS

FP32 (float)

480.0 GFLOPS

32.40 GFLOPS

FP64 (double)

-

Board Design

35W

TDP

26W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF116

GPU Name

Whistler

N12E-GE2-A1

GPU Variant

Whistler LP

Fermi 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.17 billion

Transistors

0.716 billion

238 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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