NVIDIA GeForce GT 640M LE vs ATI Mobility Radeon HD 3470

VS

NVIDIA GeForce GT 640M LE ATI Mobility Radeon HD 3470

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M LE and 256MB VRAM Mobility Radeon HD 3470 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 4 months late

Larger VRAM bandwidth (50.24GB/s vs 6.400GB/s)

56 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M LE +435%

0.289 TFLOPS

Mobility Radeon HD 3470

0.054 TFLOPS

GeForce GT 640M LE

VS

Mobility Radeon HD 3470

Graphics Card

May 2012

Release Date

Jan 2008

GeForce 600M

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

Base Clock

-

Boost Clock

-

785 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

50.24GB/s

Bandwidth

6.400GB/s

Render Config

2

SM Count

-

Compute Units

2

96

Shading Units

40

16

TMUs

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

64 KB

Theoretical Performance

3.012 GPixel/s

Pixel Rate

2.720 GPixel/s

12.05 GTexel/s

Texture Rate

2.720 GTexel/s

-

FP16 (half)

-

289.0 GFLOPS

FP32 (float)

54.40 GFLOPS

24.08 GFLOPS

FP64 (double)

-

Graphics Processor

GF108

GPU Name

M82

-

GPU Variant

M82-ME XT (216-0707009)

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.585 billion

Transistors

0.181 billion

116 mm²

Die Size

67 mm²

Board Design

32W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

10.1

4.6

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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