NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon R5 M420

VS

NVIDIA GeForce RTX 4090 Mobile AMD Radeon R5 M420

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 4GB VRAM Radeon R5 M420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 6 years and 8 months late

Boost Clock has increased by 99% (1695MHz vs 850MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (576.0GB/s vs 16.00GB/s)

9408 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +5962%

32.98 TFLOPS

Radeon R5 M420

0.544 TFLOPS

GeForce RTX 4090 Mobile

VS

Radeon R5 M420

Graphics Card

Jan 2023

Release Date

May 2016

GeForce 40 Mobile

Generation

Gem System

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1335 MHz

Base Clock

780 MHz

1695 MHz

Boost Clock

850 MHz

2250 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

64bit

576.0GB/s

Bandwidth

16.00GB/s

Render Config

76

SM Count

-

Compute Units

5

9728

Shading Units

320

304

TMUs

20

112

ROPs

8

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

128 KB

Theoretical Performance

189.8 GPixel/s

Pixel Rate

6.800 GPixel/s

515.3 GTexel/s

Texture Rate

17.00 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

544.0 GFLOPS

515.3 GFLOPS

FP64 (double)

34.00 GFLOPS

Graphics Processor

AD103

GPU Name

Jet

GN21-X11

GPU Variant

Jet PRO (216-0856040)

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

45.9 billion

Transistors

0.69 billion

379 mm²

Die Size

56 mm²

Board Design

120W

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

8.9

CUDA

-

6.7

Shader Model

6.5 (5.1)

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