NVIDIA GeForce GT 620M vs NVIDIA GeForce GT 420M

VS

NVIDIA GeForce GT 620M NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 620M and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 620M 's Advantages

Released 1 years and 11 months late

More VRAM (1024GB vs 512GB)

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

Lower TDP (15W vs 23W)

Score

Benchmark

FP32 (float)

GeForce GT 620M +31%

0.253 TFLOPS

GeForce GT 420M

0.192 TFLOPS

GeForce GT 620M

VS

GeForce GT 420M

Graphics Card

Aug 2012

Release Date

Sep 2010

GeForce 600M

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

25.60GB/s

Render Config

2

SM Count

2

-

Compute Units

-

96

Shading Units

96

16

TMUs

16

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

Theoretical Performance

2.640 GPixel/s

Pixel Rate

2.000 GPixel/s

10.56 GTexel/s

Texture Rate

8.000 GTexel/s

-

FP16 (half)

-

253.4 GFLOPS

FP32 (float)

192.0 GFLOPS

21.12 GFLOPS

FP64 (double)

16.00 GFLOPS

Graphics Processor

GF108

GPU Name

GF108

N13P-GLP-A1

GPU Variant

N11P-GE-A1

Fermi

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.585 billion

Transistors

0.585 billion

116 mm²

Die Size

116 mm²

Board Design

15W

TDP

23W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

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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