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

VS

AMD Radeon RX 550X Mobile NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 550X Mobile and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X Mobile 's Advantages

Released 7 years and 7 months late

Boost Clock1176MHz

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

544 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 550X Mobile +683%

1.505 TFLOPS

GeForce GT 420M

0.192 TFLOPS

Radeon RX 550X Mobile

VS

GeForce GT 420M

Graphics Card

Apr 2018

Release Date

Sep 2010

Mobility Radeon

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1176 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

2

10

Compute Units

-

640

Shading Units

96

40

TMUs

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

Theoretical Performance

18.82 GPixel/s

Pixel Rate

2.000 GPixel/s

47.04 GTexel/s

Texture Rate

8.000 GTexel/s

1.505 TFLOPS

FP16 (half)

-

1.505 TFLOPS

FP32 (float)

192.0 GFLOPS

94.08 GFLOPS

FP64 (double)

16.00 GFLOPS

Graphics Processor

Polaris 23

GPU Name

GF108

Polaris 23 MXT

GPU Variant

N11P-GE-A1

GCN 4.0

Architecture

Fermi

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

0.585 billion

103 mm²

Die Size

116 mm²

Board Design

50W

TDP

23W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.4

Shader Model

5.1

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