ATI Mobility Radeon HD 2600 XT vs NVIDIA GeForce GT 640M LE

VS

ATI Mobility Radeon HD 2600 XT

NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 2600 XT and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 2600 XT 's Advantages

24 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Released 5 years late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (50.24GB/s vs 24.00GB/s)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 2600 XT

0.163 TFLOPS

GeForce GT 640M LE +77%

0.289 TFLOPS

Mobility Radeon HD 2600 XT

VS

GeForce GT 640M LE

Graphics Card

May 2007

Release Date

May 2012

M7x

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

750 MHz

Memory Clock

785 MHz

Memory

256MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

24.00GB/s

Bandwidth

50.24GB/s

Render Config

3

Compute Units

-

SM Count

2

120

Shading Units

96

8

TMUs

16

4

ROPs

4

-

L1 Cache

64 KB (per SM)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.720 GPixel/s

Pixel Rate

3.012 GPixel/s

5.440 GTexel/s

Texture Rate

12.05 GTexel/s

-

163.2 GFLOPS

FP32 (float)

289.0 GFLOPS

-

FP64 (double)

24.08 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

M76

GPU Name

GF108

M76 XT-M (216XJBKA13FG)

GPU Variant

-

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.39 billion

Transistors

0.585 billion

153 mm²

Die Size

116 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.0

Shader Model

5.1

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