NVIDIA GeForce RTX 5090 Mobile vs NVIDIA GeForce GT 420M

VS

NVIDIA GeForce RTX 5090 Mobile

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 5090 Mobile and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5090 Mobile 's Advantages

Released 14 years and 4 months late

Boost Clock2000MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (1.01TB/s vs 25.60GB/s)

10656 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 175W)

Score

Benchmark

FP32 (float)

GeForce RTX 5090 Mobile +22301%

43.01 TFLOPS

GeForce GT 420M

0.192 TFLOPS

GeForce RTX 5090 Mobile

VS

GeForce GT 420M

Graphics Card

Jan 2025

Release Date

Sep 2010

GeForce 50 Mobile

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 5.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1500 MHz

Base Clock

-

2000 MHz

Boost Clock

-

2500 MHz

Memory Clock

800 MHz

Memory

16GB

Memory Size

512MB

GDDR7

Memory Type

DDR3

256bit

Memory Bus

128bit

1.01TB/s

Bandwidth

25.60GB/s

Render Config

-

84

SM Count

2

10752

Shading Units

96

336

TMUs

16

128

ROPs

4

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

64 MB

L2 Cache

256 KB

-

Theoretical Performance

256.0 GPixel/s

Pixel Rate

2.000 GPixel/s

672.0 GTexel/s

Texture Rate

8.000 GTexel/s

43.01 TFLOPS

FP16 (half)

-

43.01 TFLOPS

FP32 (float)

192.0 GFLOPS

672.0 GFLOPS

FP64 (double)

16.00 GFLOPS

Board Design

175W

TDP

23W

550 W

Suggested PSU

-

1x HDMI 2.13x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GB203

GPU Name

GF108

-

GPU Variant

N11P-GE-A1

Blackwell 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

Unknown

Transistors

0.585 billion

377 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

10.1

CUDA

2.1

6.8

Shader Model

5.1

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