NVIDIA GeForce GT 640M LE vs NVIDIA GeForce GTX 460M

VS

NVIDIA GeForce GT 640M LE NVIDIA GeForce GTX 460M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M LE and 1536MB VRAM GeForce GTX 460M 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 1 years and 8 months late

More VRAM (2GB vs 1GB)

Lower TDP (32W vs 50W)

NVIDIA GeForce GTX 460M 's Advantages

Larger VRAM bandwidth (60.00GB/s vs 50.24GB/s)

96 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M LE

0.289 TFLOPS

GeForce GTX 460M +79%

0.518 TFLOPS

GeForce GT 640M LE

VS

GeForce GTX 460M

Graphics Card

May 2012

Release Date

Sep 2010

GeForce 600M

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

785 MHz

Memory Clock

625 MHz

Memory

2GB

Memory Size

1536MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

50.24GB/s

Bandwidth

60.00GB/s

Render Config

2

SM Count

4

-

Compute Units

-

96

Shading Units

192

16

TMUs

32

4

ROPs

24

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

Theoretical Performance

3.012 GPixel/s

Pixel Rate

5.400 GPixel/s

12.05 GTexel/s

Texture Rate

21.60 GTexel/s

-

FP16 (half)

-

289.0 GFLOPS

FP32 (float)

518.4 GFLOPS

24.08 GFLOPS

FP64 (double)

43.20 GFLOPS

Graphics Processor

GF108

GPU Name

GF106

-

GPU Variant

N11E-GS-A1

Fermi

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.585 billion

Transistors

1.17 billion

116 mm²

Die Size

238 mm²

Board Design

32W

TDP

50W

-

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

1.1

N/A

Vulkan

N/A

2.1

CUDA

2.1

5.1

Shader Model

5.1

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