NVIDIA GeForce GTX 960M vs NVIDIA GeForce GT 640M LE

VS

NVIDIA GeForce GTX 960M

NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 960M 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 GTX 960M 's Advantages

Released 2 years and 10 months late

Boost Clock1176MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (80.19GB/s vs 50.24GB/s)

544 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 960M +420%

1.505 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

GeForce GTX 960M

VS

GeForce GT 640M LE

Graphics Card

Mar 2015

Release Date

May 2012

GeForce 900M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1097 MHz

Base Clock

-

1176 MHz

Boost Clock

-

1253 MHz

Memory Clock

785 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

80.19GB/s

Bandwidth

50.24GB/s

Render Config

-

SM Count

2

640

Shading Units

96

40

TMUs

16

ROPs

4

-

64 KB (per SMM)

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

18.82 GPixel/s

Pixel Rate

3.012 GPixel/s

47.04 GTexel/s

Texture Rate

12.05 GTexel/s

-

1.505 TFLOPS

FP32 (float)

289.0 GFLOPS

47.04 GFLOPS

FP64 (double)

24.08 GFLOPS

Board Design

75W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

GF108

N16P-GX-A1

GPU Variant

-

Maxwell

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.87 billion

Transistors

0.585 billion

148 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

2.1

5.1

Shader Model

5.1

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