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

VS

NVIDIA GeForce RTX 3080 Mobile 16 GB

NVIDIA GeForce 820A

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Mobile 16 GB and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 16 GB 's Advantages

Released 6 years and 10 months late

Boost Clock1545MHz

More VRAM (16GB vs 1024GB)

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

6048 additional rendering cores

NVIDIA GeForce 820A 's Advantages

Lower TDP (15W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Mobile 16 GB +6269%

18.98 TFLOPS

GeForce 820A

0.298 TFLOPS

GeForce RTX 3080 Mobile 16 GB

VS

GeForce 820A

Graphics Card

Jan 2021

Release Date

Mar 2014

GeForce 30 Mobile

Generation

GeForce 800A

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

16GB

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

3.100 GPixel/s

296.6 GTexel/s

Texture Rate

12.40 GTexel/s

18.98 TFLOPS

FP16 (half)

-

18.98 TFLOPS

FP32 (float)

297.6 GFLOPS

296.6 GFLOPS

FP64 (double)

24.80 GFLOPS

Board Design

115W

TDP

15W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GA104

GPU Name

GF117

GA104-775-A1

GPU Variant

N15V-GM

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

6.8

Shader Model

5.1

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