NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce 620M

VS

NVIDIA GeForce RTX 3080 Mobile

NVIDIA GeForce 620M

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Mobile and 1024MB VRAM GeForce 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 's Advantages

Released 8 years and 10 months late

Boost Clock1545MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (448.0GB/s vs 14.40GB/s)

6048 additional rendering cores

NVIDIA GeForce 620M 's Advantages

Lower TDP (15W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Mobile +7808%

18.98 TFLOPS

GeForce 620M

0.24 TFLOPS

GeForce RTX 3080 Mobile

VS

GeForce 620M

Graphics Card

Jan 2021

Release Date

Mar 2012

GeForce 30 Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1110 MHz

Base Clock

-

1545 MHz

Boost Clock

-

1750 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

64bit

448.0GB/s

Bandwidth

14.40GB/s

Render Config

-

48

SM Count

2

6144

Shading Units

96

192

TMUs

16

96

ROPs

8

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

128 KB

-

Theoretical Performance

148.3 GPixel/s

Pixel Rate

2.500 GPixel/s

296.6 GTexel/s

Texture Rate

10.00 GTexel/s

18.98 TFLOPS

FP16 (half)

-

18.98 TFLOPS

FP32 (float)

240.0 GFLOPS

296.6 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

115W

TDP

15W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GA104

GPU Name

GF117

GA104-775-A1

GPU Variant

N13P-GLP

Ampere

Architecture

Fermi 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

0.585 billion

392 mm²

Die Size

116 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

8.6

CUDA

2.1

6.6

Shader Model

5.1

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