NVIDIA GeForce GT 420M vs NVIDIA GeForce GT 745A

VS

NVIDIA GeForce GT 420M

NVIDIA GeForce GT 745A

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 2GB VRAM GeForce GT 745A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 33W)

NVIDIA GeForce GT 745A 's Advantages

Released 2 years and 11 months late

Boost Clock915MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (28.80GB/s vs 25.60GB/s)

288 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 420M

0.192 TFLOPS

GeForce GT 745A +266%

0.703 TFLOPS

GeForce GT 420M

VS

GeForce GT 745A

Graphics Card

Sep 2010

Release Date

Aug 2013

GeForce 400M

Generation

GeForce 700A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

837 MHz

-

Boost Clock

915 MHz

800 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

28.80GB/s

Render Config

-

2

SM Count

-

96

Shading Units

384

16

TMUs

32

4

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

7.320 GPixel/s

8.000 GTexel/s

Texture Rate

29.28 GTexel/s

-

192.0 GFLOPS

FP32 (float)

702.7 GFLOPS

16.00 GFLOPS

FP64 (double)

29.28 GFLOPS

Board Design

23W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GF108

GPU Name

GK107

N11P-GE-A1

GPU Variant

N14P-LP

Fermi

Architecture

Kepler

TSMC

Foundry

TSMC

40 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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