NVIDIA GeForce GT 420M vs AMD Radeon RX 550X Mobile

VS

NVIDIA GeForce GT 420M

AMD Radeon RX 550X Mobile

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M 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 GT 420M 's Advantages

Lower TDP (23W vs 50W)

AMD Radeon RX 550X Mobile 's Advantages

Released 7 years and 7 months late

Boost Clock1176MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (48.00GB/s vs 25.60GB/s)

544 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 420M

0.192 TFLOPS

Radeon RX 550X Mobile +683%

1.505 TFLOPS

GeForce GT 420M

VS

Radeon RX 550X Mobile

Graphics Card

Sep 2010

Release Date

Apr 2018

GeForce 400M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1176 MHz

800 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

48.00GB/s

Render Config

-

Compute Units

10

2

SM Count

-

96

Shading Units

640

16

TMUs

40

4

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

18.82 GPixel/s

8.000 GTexel/s

Texture Rate

47.04 GTexel/s

-

FP16 (half)

1.505 TFLOPS

192.0 GFLOPS

FP32 (float)

1.505 TFLOPS

16.00 GFLOPS

FP64 (double)

94.08 GFLOPS

Board Design

23W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GF108

GPU Name

Polaris 23

N11P-GE-A1

GPU Variant

Polaris 23 MXT

Fermi

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.585 billion

Transistors

2.2 billion

116 mm²

Die Size

103 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.4

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