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AMD Radeon RX 540X Mobile

128-bit · 512 cores

An entry-level laptop GPU from AMD's Radeon 500X series, introduced in 2018 as a rebrand of the Radeon RX 540 Mobile built on the Polaris-based Lexa die. It pairs 512 stream processors with a 128-bit GDDR5 memory interface and was used in mainstream notebooks as a step up from integrated graphics for everyday use and light gaming.

General

Manufacturer: AMD
Model: Radeon RX 540X Mobile
Segment: Mobile
GPU chip: Polaris 23 (Lexa)
Architecture: GCN 4 (Polaris)
Release date: —
Price: Search on Amazon

Memory

Memory size: 2 GB
Memory type: GDDR5
Bus width: 128-bit
Bandwidth: 96 GB/s
Memory clock: 1,500 MHz

Clocks & silicon

GPU clock: 1,124 MHz
Boost clock: 1,219 MHz
Shader units: 512 Stream Processors (8 CU)
Tensor / AI cores: —
RT cores: —
Transistors: 2.2 billion
Technology (nm): 14 nm
GF 14LPP
TDP / TBP: 50 W

Interface & APIs

Bus interface: PCIe 3.0 x8
SLI / multi-GPU: None
DirectX: 12 (12_0)
OpenGL: 4.6
Vulkan: 1.3
Other APIs: OpenCL 2.0

AI support

Precisions: FP8FP16BF16INT8INT4TF32FP64
AI accelerator: None (no matrix accelerator)
Peak AI TOPS: —
Notes: GCN 4 (Polaris) has no matrix or AI accelerator units. FP16 is supported but runs at the same rate as FP32, and there is no BF16, TF32, FP8 or accelerated INT8 dot-product support.

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