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

VS

NVIDIA GeForce GT 640M LE NVIDIA GeForce GT 640M

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

Main Differences

NVIDIA GeForce GT 640M LE 's Advantages

Larger VRAM bandwidth (50.24GB/s vs 28.80GB/s)

NVIDIA GeForce GT 640M 's Advantages

288 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M LE

0.289 TFLOPS

GeForce GT 640M +66%

0.48 TFLOPS

GeForce GT 640M LE

VS

GeForce GT 640M

Graphics Card

May 2012

Release Date

Mar 2012

GeForce 600M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

785 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

50.24GB/s

Bandwidth

28.80GB/s

Render Config

2

SM Count

-

Compute Units

-

96

Shading Units

384

16

TMUs

32

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

Theoretical Performance

3.012 GPixel/s

Pixel Rate

5.000 GPixel/s

12.05 GTexel/s

Texture Rate

20.00 GTexel/s

-

FP16 (half)

-

289.0 GFLOPS

FP32 (float)

480.0 GFLOPS

24.08 GFLOPS

FP64 (double)

20.00 GFLOPS

Graphics Processor

GF108

GPU Name

GK107

-

GPU Variant

N13P-GS

Fermi

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.585 billion

Transistors

1.27 billion

116 mm²

Die Size

118 mm²

Board Design

32W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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