AMD Radeon 550X Mobile vs AMD Radeon 540X Mobile

VS

AMD Radeon 550X Mobile

AMD Radeon 540X Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon 550X Mobile and 2GB VRAM Radeon 540X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X Mobile 's Advantages

Boost Clock has increased by 18% (1287MHz vs 1095MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (48.00GB/s vs 32.00GB/s)

128 additional rendering cores

AMD Radeon 540X Mobile 's Advantages

Released 10 months late

Score

Benchmark

FP32 (float)

Radeon 550X Mobile +46%

1.647 TFLOPS

Radeon 540X Mobile

1.121 TFLOPS

Radeon 550X Mobile

VS

Radeon 540X Mobile

Graphics Card

Apr 2018

Release Date

Feb 2019

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1100 MHz

Base Clock

980 MHz

1287 MHz

Boost Clock

1095 MHz

1500 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

64bit

48.00GB/s

Bandwidth

32.00GB/s

Render Config

10

Compute Units

8

-

640

Shading Units

512

40

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

20.59 GPixel/s

Pixel Rate

17.52 GPixel/s

51.48 GTexel/s

Texture Rate

35.04 GTexel/s

1.647 TFLOPS

FP16 (half)

1121 GFLOPS

1.647 TFLOPS

FP32 (float)

1121 GFLOPS

103.0 GFLOPS

FP64 (double)

70.08 GFLOPS

Board Design

50W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

Lexa

Polaris 23 MXT

GPU Variant

Lexa PRO (215-0904018)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

2.2 billion

103 mm²

Die Size

103 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

6.4

Shader Model

6.4

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