NVIDIA GeForce GT 555M vs ATI Mobility Radeon HD 2600 XT Mac Edition

VS

NVIDIA GeForce GT 555M

ATI Mobility Radeon HD 2600 XT Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 555M and 256MB VRAM Mobility Radeon HD 2600 XT 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 4 years and 8 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (28.80GB/s vs 21.92GB/s)

24 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 555M +170%

0.389 TFLOPS

Mobility Radeon HD 2600 XT Mac Edition

0.144 TFLOPS

GeForce GT 555M

VS

Mobility Radeon HD 2600 XT Mac Edition

Graphics Card

Mar 2012

Release Date

Jul 2007

GeForce 500M

Generation

M7x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

900 MHz

Memory Clock

685 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

21.92GB/s

Render Config

-

Compute Units

3

2

SM Count

-

144

Shading Units

120

24

TMUs

8

16

ROPs

4

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

2.700 GPixel/s

Pixel Rate

2.400 GPixel/s

16.20 GTexel/s

Texture Rate

4.800 GTexel/s

-

388.8 GFLOPS

FP32 (float)

144.0 GFLOPS

32.40 GFLOPS

FP64 (double)

-

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GF116

GPU Name

M76

N12E-GE2-A1

GPU Variant

M76 XT-M (216XJBKA13FG)

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.17 billion

Transistors

0.39 billion

238 mm²

Die Size

153 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.0

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