NVIDIA GeForce GT 745A vs NVIDIA GeForce GT 620M

VS

NVIDIA GeForce GT 745A

NVIDIA GeForce GT 620M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 745A and 1024MB VRAM GeForce GT 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 745A 's Advantages

Released 1 years late

Boost Clock915MHz

More VRAM (2GB vs 1024GB)

288 additional rendering cores

NVIDIA GeForce GT 620M 's Advantages

Lower TDP (15W vs 33W)

Score

Benchmark

FP32 (float)

GeForce GT 745A +177%

0.703 TFLOPS

GeForce GT 620M

0.253 TFLOPS

GeForce GT 745A

VS

GeForce GT 620M

Graphics Card

Aug 2013

Release Date

Aug 2012

GeForce 700A

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

837 MHz

Base Clock

-

915 MHz

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

384

Shading Units

96

32

TMUs

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.320 GPixel/s

Pixel Rate

2.640 GPixel/s

29.28 GTexel/s

Texture Rate

10.56 GTexel/s

-

702.7 GFLOPS

FP32 (float)

253.4 GFLOPS

29.28 GFLOPS

FP64 (double)

21.12 GFLOPS

Board Design

33W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

GF108

N14P-LP

GPU Variant

N13P-GLP-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.585 billion

118 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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