NVIDIA GeForce GT 640M vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce GT 640M NVIDIA GeForce GT 640

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

Main Differences

NVIDIA GeForce GT 640M 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 28.51GB/s)

Lower TDP (32W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 640M

0.48 TFLOPS

GeForce GT 640 +44%

0.693 TFLOPS

GeForce GT 640M

VS

GeForce GT 640

Graphics Card

Mar 2012

Release Date

Jun 2012

GeForce 600M

Generation

GeForce 600

Mobile

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

891 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

28.51GB/s

Render Config

-

SM Count

-

Compute Units

-

384

Shading Units

384

32

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

Theoretical Performance

5.000 GPixel/s

Pixel Rate

7.216 GPixel/s

20.00 GTexel/s

Texture Rate

28.86 GTexel/s

-

FP16 (half)

-

480.0 GFLOPS

FP32 (float)

692.7 GFLOPS

20.00 GFLOPS

FP64 (double)

28.86 GFLOPS

Graphics Processor

GK107

GPU Name

GK107

N13P-GS

GPU Variant

GK107-300-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

1.27 billion

118 mm²

Die Size

118 mm²

Board Design

32W

TDP

65W

-

Suggested PSU

250 W

No outputs

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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