NVIDIA GeForce 720A vs NVIDIA GeForce GT 640M LE

VS

NVIDIA GeForce 720A

NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 720A 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 720A 's Advantages

Released 2 years and 2 months late

Boost Clock938MHz

NVIDIA GeForce GT 640M LE 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (50.24GB/s vs 16.00GB/s)

Lower TDP (32W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 720A

0.18 TFLOPS

GeForce GT 640M LE +60%

0.289 TFLOPS

GeForce 720A

VS

GeForce GT 640M LE

Graphics Card

Jul 2014

Release Date

May 2012

GeForce 700A

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

775 MHz

Base Clock

-

938 MHz

Boost Clock

-

1000 MHz

Memory Clock

785 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

50.24GB/s

Render Config

-

2

SM Count

2

96

Shading Units

96

16

TMUs

16

8

ROPs

4

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.752 GPixel/s

Pixel Rate

3.012 GPixel/s

15.01 GTexel/s

Texture Rate

12.05 GTexel/s

-

180.1 GFLOPS

FP32 (float)

289.0 GFLOPS

15.01 GFLOPS

FP64 (double)

24.08 GFLOPS

Board Design

33W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF117

GPU Name

GF108

N14M-GE

GPU Variant

-

Fermi 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.585 billion

Transistors

0.585 billion

116 mm²

Die Size

116 mm²

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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