NVIDIA GeForce 820M vs NVIDIA GeForce RTX 3080 Mobile 16 GB

VS

NVIDIA GeForce 820M

NVIDIA GeForce RTX 3080 Mobile 16 GB

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 16GB VRAM GeForce RTX 3080 Mobile 16 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Lower TDP (45W vs 115W)

NVIDIA GeForce RTX 3080 Mobile 16 GB 's Advantages

Released 5 years and 10 months late

Boost Clock1545MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 28.83GB/s)

5760 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820M

0.622 TFLOPS

GeForce RTX 3080 Mobile 16 GB +2951%

18.98 TFLOPS

GeForce 820M

VS

GeForce RTX 3080 Mobile 16 GB

Graphics Card

Mar 2015

Release Date

Jan 2021

GeForce 800M

Generation

GeForce 30 Mobile

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1110 MHz

-

Boost Clock

1545 MHz

901 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

16GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

256bit

28.83GB/s

Bandwidth

448.0GB/s

Render Config

-

SM Count

48

384

Shading Units

6144

32

TMUs

192

16

ROPs

96

-

Tensor Cores

192

-

RT Cores

48

16 KB (per SMX)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

148.3 GPixel/s

25.92 GTexel/s

Texture Rate

296.6 GTexel/s

-

FP16 (half)

18.98 TFLOPS

622.1 GFLOPS

FP32 (float)

18.98 TFLOPS

25.92 GFLOPS

FP64 (double)

296.6 GFLOPS

Board Design

45W

TDP

115W

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

GA104

-

GPU Variant

GA104-775-A1

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

1.27 billion

Transistors

17.4 billion

118 mm²

Die Size

392 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

8.6

5.1

Shader Model

6.8

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