NVIDIA GeForce 720M vs NVIDIA GeForce GT 640M

VS

NVIDIA GeForce 720M

NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 720M 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 720M 's Advantages

Released 1 years and 1 months late

NVIDIA GeForce GT 640M 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 12.80GB/s)

288 additional rendering cores

Lower TDP (32W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 720M

0.24 TFLOPS

GeForce GT 640M +100%

0.48 TFLOPS

GeForce 720M

VS

GeForce GT 640M

Graphics Card

Apr 2013

Release Date

Mar 2012

GeForce 700M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

12.80GB/s

Bandwidth

28.80GB/s

Render Config

-

2

SM Count

-

96

Shading Units

384

16

TMUs

32

8

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

5.000 GPixel/s

10.00 GTexel/s

Texture Rate

20.00 GTexel/s

-

240.0 GFLOPS

FP32 (float)

480.0 GFLOPS

20.00 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

33W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF117

GPU Name

GK107

N14M-GE

GPU Variant

N13P-GS

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.585 billion

Transistors

1.27 billion

116 mm²

Die Size

118 mm²

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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