NVIDIA GeForce RTX 3080 Max Q vs AMD Radeon 620 Mobile

VS

NVIDIA GeForce RTX 3080 Max Q

AMD Radeon 620 Mobile

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Max Q and 2GB VRAM Radeon 620 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Max Q 's Advantages

Released 1 years and 8 months late

Boost Clock has increased by 22% (1245MHz vs 1024MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 14.40GB/s)

5760 additional rendering cores

AMD Radeon 620 Mobile 's Advantages

Lower TDP (50W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Max Q +1846%

15.3 TFLOPS

Radeon 620 Mobile

0.786 TFLOPS

GeForce RTX 3080 Max Q

VS

Radeon 620 Mobile

Graphics Card

Jan 2021

Release Date

May 2019

GeForce 30 Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

780 MHz

Base Clock

730 MHz

1245 MHz

Boost Clock

1024 MHz

1500 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

64bit

384.0GB/s

Bandwidth

14.40GB/s

Render Config

-

Compute Units

6

48

SM Count

-

6144

Shading Units

384

192

TMUs

24

96

ROPs

8

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

128 KB

-

Theoretical Performance

119.5 GPixel/s

Pixel Rate

8.192 GPixel/s

239.0 GTexel/s

Texture Rate

24.58 GTexel/s

15.30 TFLOPS

FP16 (half)

786.4 GFLOPS

15.30 TFLOPS

FP32 (float)

786.4 GFLOPS

239.0 GFLOPS

FP64 (double)

49.15 GFLOPS

Board Design

80W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GA104

GPU Name

Polaris 24

GA104-775-A1

GPU Variant

Polaris 24 XL

Ampere

Architecture

GCN 3.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

1.55 billion

392 mm²

Die Size

125 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

8.6

CUDA

-

6.6

Shader Model

6.3

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