NVIDIA GeForce GT 640M LE vs ATI Mobility Radeon HD 3670

VS

NVIDIA GeForce GT 640M LE ATI Mobility Radeon HD 3670

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M LE and 256MB VRAM Mobility Radeon HD 3670 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 25.60GB/s)

ATI Mobility Radeon HD 3670 's Advantages

24 additional rendering cores

Lower TDP (30W vs 32W)

Score

Benchmark

FP32 (float)

GeForce GT 640M LE +77%

0.289 TFLOPS

Mobility Radeon HD 3670

0.163 TFLOPS

GeForce GT 640M LE

VS

Mobility Radeon HD 3670

Graphics Card

May 2012

Release Date

Jan 2008

GeForce 600M

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

785 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

50.24GB/s

Bandwidth

25.60GB/s

Render Config

2

SM Count

-

Compute Units

3

96

Shading Units

120

16

TMUs

8

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

128 KB

Theoretical Performance

3.012 GPixel/s

Pixel Rate

2.720 GPixel/s

12.05 GTexel/s

Texture Rate

5.440 GTexel/s

-

FP16 (half)

-

289.0 GFLOPS

FP32 (float)

163.2 GFLOPS

24.08 GFLOPS

FP64 (double)

-

Graphics Processor

GF108

GPU Name

M86

-

GPU Variant

-

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.585 billion

Transistors

0.378 billion

116 mm²

Die Size

135 mm²

Board Design

32W

TDP

30W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

10.1 (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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