NVIDIA GeForce GT 640M LE vs ATI Mobility Radeon X2500

VS

NVIDIA GeForce GT 640M LE ATI Mobility Radeon X2500

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M LE and 256MB VRAM Mobility Radeon X2500 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640M LE 's Advantages

Released 4 years and 11 months late

Larger VRAM bandwidth (50.24GB/s vs 12.80GB/s)

96 additional rendering cores

Score

GeForce GT 640M LE

VS

Mobility Radeon X2500

Graphics Card

May 2012

Release Date

Jun 2007

GeForce 600M

Generation

M6x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

785 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

128bit

50.24GB/s

Bandwidth

12.80GB/s

Render Config

2

SM Count

-

Compute Units

-

96

Shading Units

-

16

TMUs

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

3.012 GPixel/s

Pixel Rate

1.840 GPixel/s

12.05 GTexel/s

Texture Rate

1.840 GTexel/s

-

FP16 (half)

-

289.0 GFLOPS

FP32 (float)

-

24.08 GFLOPS

FP64 (double)

-

Graphics Processor

GF108

GPU Name

M66

-

GPU Variant

-

Fermi

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

40 nm

Process Size

90 nm

0.585 billion

Transistors

0.157 billion

116 mm²

Die Size

150 mm²

Board Design

32W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

3.0

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