AMD Radeon 540 Mobile vs AMD Radeon RX 550X Mobile

Table of Contents

Graphics Processor

GPU model Lexa Polaris 23
GPU variant Lexa PRO (215-0904018) Polaris 23 MXT
Architecture GCN 4.0 GCN 4.0
Foundry GlobalFoundries GlobalFoundries
Manufacturing process 14 nm 14 nm
Number of transistors 2,200 million 2,200 million
Die size 103 mm² 103 mm²

Mobile graphics

Release date Mar 26th, 2019 Apr 11th, 2018
Generation Mobility Radeon (M500) Mobility Radeon (RX M500X)
Production End-of-life Active
Interface PCIe 3.0 x8 PCIe 3.0 x8
Predecessor Crystal System Crystal System

Clocks

Base clock 1100 MHz 1100 MHz
Boost clock 1124 MHz 1176 MHz
Memory clock 1500 MHz 6 Gbps effective 1500 MHz 6 Gbps effective

Memory Configuration

Memory size 2 GB 2 GB
Memory type GDDR5 GDDR5
Memory bus width 64 bit 64 bit
Bandwidth 48.00 GB/s 48.00 GB/s

Render Configuration

Shading units 512 640
TMUs 32 40
ROPs 16 16
Compute units 8 10
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 256 KB 512 KB

Performance

Pixel rate 17.98 GPixel/s 18.82 GPixel/s
Texture rate 35.97 GTexel/s 47.04 GTexel/s
FP16 (half) performance 1,151 GFLOPS (1:1) 1.505 TFLOPS (1:1)
FP32 (float) performance 1,151 GFLOPS 1.505 TFLOPS
FP64 (double) performance 71.94 GFLOPS (1:16) 94.08 GFLOPS (1:16)

Dimensions & Outputs

Slot width Dual-slot IGP
TDP 50 W 50 W
Outputs No outputs No outputs
Power connectors None None

API Support & Features

DirectX 12 (12_0) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.1 2.1
Vulkan 1.2 1.2
Shader model 6.4 6.4

Other Features

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