NVIDIA GeForce 9700M GT vs NVIDIA GeForce GT 640M LE

VS

NVIDIA GeForce 9700M GT

NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 512MB VRAM GeForce 9700M GT and 2GB VRAM GeForce GT 640M LE 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 3 years and 10 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (50.24GB/s vs 25.60GB/s)

64 additional rendering cores

Lower TDP (32W vs 45W)

Score

Benchmark

FP32 (float)

GeForce 9700M GT

0.099 TFLOPS

GeForce GT 640M LE +191%

0.289 TFLOPS

GeForce 9700M GT

VS

GeForce GT 640M LE

Graphics Card

Jul 2008

Release Date

May 2012

GeForce 9M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

785 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

50.24GB/s

Render Config

-

4

SM Count

2

32

Shading Units

96

16

TMUs

16

8

ROPs

4

-

L1 Cache

64 KB (per SM)

32 KB

L2 Cache

256 KB

-

Theoretical Performance

5.000 GPixel/s

Pixel Rate

3.012 GPixel/s

10.00 GTexel/s

Texture Rate

12.05 GTexel/s

-

99.20 GFLOPS

FP32 (float)

289.0 GFLOPS

-

FP64 (double)

24.08 GFLOPS

Board Design

45W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

G96

GPU Name

GF108

NB9E-GE

GPU Variant

-

Tesla

Architecture

Fermi

UMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.314 billion

Transistors

0.585 billion

144 mm²

Die Size

116 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.1

CUDA

2.1

4.0

Shader Model

5.1

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