NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon RX 550X Mobile

VS

NVIDIA GeForce RTX 4090 Mobile

AMD Radeon RX 550X Mobile

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 2GB VRAM Radeon RX 550X Mobile 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 4 years and 9 months late

Boost Clock has increased by 44% (1695MHz vs 1176MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 48.00GB/s)

9088 additional rendering cores

AMD Radeon RX 550X Mobile 's Advantages

Lower TDP (50W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +2091%

32.98 TFLOPS

Radeon RX 550X Mobile

1.505 TFLOPS

GeForce RTX 4090 Mobile

VS

Radeon RX 550X Mobile

Graphics Card

Jan 2023

Release Date

Apr 2018

GeForce 40 Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1335 MHz

Base Clock

1100 MHz

1695 MHz

Boost Clock

1176 MHz

2250 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

576.0GB/s

Bandwidth

48.00GB/s

Render Config

-

Compute Units

10

76

SM Count

-

9728

Shading Units

640

304

TMUs

40

112

ROPs

16

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

512 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

18.82 GPixel/s

515.3 GTexel/s

Texture Rate

47.04 GTexel/s

32.98 TFLOPS

FP16 (half)

1.505 TFLOPS

32.98 TFLOPS

FP32 (float)

1.505 TFLOPS

515.3 GFLOPS

FP64 (double)

94.08 GFLOPS

Board Design

80-150W

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

AD103

GPU Name

Polaris 23

GN21-X11

GPU Variant

Polaris 23 MXT

Ada Lovelace

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

5 nm

Process Size

14 nm

45.9 billion

Transistors

2.2 billion

379 mm²

Die Size

103 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2

8.9

CUDA

-

6.8

Shader Model

6.4

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