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AMD Radeon RX 540X Mobile

Graphics Processor
Polaris 23
Cores
512
TMUs
32
ROPs
16
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
128 bit
The Radeon RX 540X Mobile is a mobile graphics chip by AMD, launched in April 2018. Built on the 14 nm process, and based on the Polaris 23 graphics processor, in its Polaris 23 MXL variant, the chip supports DirectX 12. This ensures that all modern games will run on Radeon RX 540X Mobile. The Polaris 23 graphics processor is an average sized chip with a die area of 103 mm² and 2,200 million transistors. Unlike the fully unlocked Radeon RX 640 Mobile, which uses the same GPU but has all 640 shaders enabled, AMD has disabled some shading units on the Radeon RX 540X Mobile to reach the product's target shader count. It features 512 shading units, 32 texture mapping units, and 16 ROPs. AMD has paired 2,048 MB GDDR5 memory with the Radeon RX 540X Mobile, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 1124 MHz, which can be boosted up to 1211 MHz, memory is running at 1500 MHz.
Its power draw is rated at 50 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. Radeon RX 540X Mobile is connected to the rest of the system using a PCI-Express 3.0 x8 interface.

Graphics Processor

GPU Name
Polaris 23
GPU Variant
Polaris 23 MXL
Architecture
GCN 4.0
Foundry
TSMC
Process Size
14 nm
Transistors
2,200 million
Die Size
103 mm²

Mobile Graphics

Release Date
Apr 11th, 2018
Generation
Mobility Radeon
(RX M500X)
Production
Active
Bus Interface
PCIe 3.0 x8

Relative Performance

6%
GeForce 210
8%
GeForce 9400 GT
10%
Radeon HD 4550
13%
Radeon HD 5450
15%
Radeon HD 6450
16%
GeForce GT 520
19%
GeForce GT 220
25%
GeForce GT 430
26%
Radeon HD 5570
28%
Radeon HD 4670
30%
GeForce GT 440
30%
GeForce GT 240
35%
GeForce 9600 GT
37%
Radeon HD 5670
39%
GeForce GT 640
41%
GeForce 9800 GT
42%
Radeon HD 6670
44%
Radeon HD 4830
47%
Radeon HD 4770
49%
Radeon HD 4850
50%
GeForce GTS 250
52%
GeForce GTS 450
54%
Radeon HD 5750
61%
Radeon HD 7750
62%
Radeon HD 5770
63%
GeForce GTX 260
64%
Radeon HD 4870
64%
Radeon Vega 8
64%
GeForce GTX 550 Ti
65%
GeForce GTX 650
69%
Radeon HD 5830
72%
Radeon HD 6790
74%
Radeon HD 4890
76%
GeForce GTX 460
77%
Radeon RX Vega 11
78%
GeForce GT 1030
78%
GeForce GTX 275
79%
Radeon HD 7770 GHz Edition
79%
GeForce GTX 280
80%
GeForce GTX 465
84%
Radeon HD 6850
86%
GeForce GTX 285
92%
Radeon HD 5850
94%
GeForce GTX 650 Ti
94%
Radeon HD 7790
98%
Radeon RX 550
98%
GeForce GTX 470
100%
Radeon RX 540X Mobile
101%
Radeon HD 6870
108%
Radeon HD 5870
112%
GeForce GTX 560 Ti
112%
Radeon HD 4870 X2
114%
GeForce GTX 750 Ti
115%
Radeon HD 6950
119%
GeForce GTX 295
120%
GeForce GTX 650 Ti Boost
121%
Radeon HD 7850
123%
GeForce GTX 480
129%
Radeon HD 6970
132%
Radeon R7 265
134%
Radeon RX 460
134%
Radeon R7 370
134%
GeForce GTX 660
134%
GeForce GTX 570
137%
Radeon RX 560
145%
GeForce GTX 950
146%
Radeon HD 7870 GHz Edition
150%
Radeon R9 270X
152%
GeForce GTX 660 Ti
153%
GeForce GTX 580
154%
GeForce GTX 1050
154%
Radeon HD 7950
157%
Radeon HD 5970
162%
GeForce GTX 760
174%
GeForce GTX 670
178%
GeForce GTX 960
183%
Radeon R9 380
184%
Radeon R9 285
186%
Radeon HD 7970
188%
GeForce GTX 680
192%
GeForce GTX 1050 Ti
197%
GeForce GTX 770
202%
Radeon HD 6990
207%
Radeon R9 280X
210%
GeForce GTX 590
210%
Radeon HD 7970 GHz Edition
232%
GeForce GTX 780
241%
GeForce GTX 1650
256%
Radeon RX 470
259%
Radeon R9 290
273%
Radeon RX 570
277%
Radeon R9 390
278%
Radeon R9 290X
282%
GeForce GTX 970
285%
GeForce GTX TITAN
289%
GeForce GTX 780 Ti
293%
Radeon R9 390X
295%
Radeon HD 7990
296%
Radeon RX 480
299%
GeForce GTX 690
307%
GeForce GTX 1060 6 GB
311%
Radeon RX 5500 OEM
315%
Radeon RX 580
317%
Radeon RX 5500 XT
321%
GeForce GTX 980
324%
GeForce GTX 1650 SUPER
325%
Radeon R9 FURY
340%
Radeon RX 590
358%
Radeon R9 295X2
360%
GeForce GTX 1660
364%
Radeon R9 FURY X
370%
GeForce GTX 980 Ti
380%
GeForce GTX TITAN X
404%
GeForce GTX 1660 SUPER
413%
GeForce GTX 1660 Ti
413%
GeForce GTX 1070
440%
Radeon RX Vega 56
466%
GeForce GTX 1070 Ti
480%
Radeon RX Vega 64
486%
GeForce GTX 1080
486%
GeForce RTX 2060
506%
Radeon RX 5700
546%
GeForce RTX 2060 SUPER
566%
GeForce RTX 2070
580%
Radeon RX 5700 XT
586%
Radeon VII
602%
TITAN X Pascal
620%
GeForce GTX 1080 Ti
626%
GeForce RTX 2070 SUPER
666%
GeForce RTX 2080
706%
GeForce RTX 2080 SUPER
780%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

Base Clock
1124 MHz
Boost Clock
1211 MHz
Memory Clock
1500 MHz
6000 MHz effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
128 bit
Bandwidth
96.00 GB/s

Render Config

Shading Units
512
TMUs
32
ROPs
16
Compute Units
8
L1 Cache
16 KB (per CU)
L2 Cache
512 KB

Theoretical Performance

Pixel Rate
19.38 GPixel/s
Texture Rate
38.75 GTexel/s
FP16 (half) performance
1,240 GFLOPS (1:1)
FP32 (float) performance
1,240 GFLOPS
FP64 (double) performance
77.50 GFLOPS (1:16)

Board Design

Slot Width
IGP
TDP
50 W
Outputs
No outputs
Power Connectors
None

Graphics Features

DirectX
12 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2.131
Shader Model
6.4

Polaris 23 GPU Notes

Architecture Codename: Arctic Islands
Codename: Polaris 12 (Treasure)
CLRX Version: GCN 1.2
Graphics/Compute: GFX8 (gfx804)
Display Core Engine: 11.2
Unified Video Decoder: 6.3
Video Compression Engine: 3.4