NVIDIA GeForce 405M vs NVIDIA GeForce 620M

VS

We compared two Mobile platform GPUs: 512MB VRAM GeForce 405M and 1024MB VRAM GeForce 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 405M 's Advantages

Lower TDP (14W vs 15W)

NVIDIA GeForce 620M 's Advantages

Released 1 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (14.40GB/s vs 12.80GB/s)

80 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 405M

0.039 TFLOPS

GeForce 620M +515%

0.24 TFLOPS

GeForce 405M

VS

GeForce 620M

Graphics Card

Jan 2011

Release Date

Mar 2012

GeForce 400M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

800 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

12.80GB/s

Bandwidth

14.40GB/s

Render Config

2

SM Count

2

-

Compute Units

-

16

Shading Units

96

8

TMUs

16

4

ROPs

8

-

Tensor Cores

-

RT Cores

-

L1 Cache

64 KB (per SM)

32 KB

L2 Cache

128 KB

Theoretical Performance

2.424 GPixel/s

Pixel Rate

2.500 GPixel/s

4.848 GTexel/s

Texture Rate

10.00 GTexel/s

-

FP16 (half)

-

38.78 GFLOPS

FP32 (float)

240.0 GFLOPS

-

FP64 (double)

20.00 GFLOPS

Graphics Processor

GT218

GPU Name

GF117

-

GPU Variant

N13P-GLP

Tesla 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.26 billion

Transistors

0.585 billion

57 mm²

Die Size

116 mm²

Board Design

14W

TDP

15W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.2

CUDA

2.1

4.1

Shader Model

5.1

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