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AMD Radeon 540X

Graphics Processor
Lexa
Cores
512
TMUs
32
ROPs
16
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
128 bit
The Radeon 540X is a graphics card by AMD, launched in September 2018. Built on the 14 nm process, and based on the Lexa graphics processor, in its Lexa PRO variant, the card supports DirectX 12.0. The Lexa graphics processor is an average sized chip with a die area of 103 mm² and 2,200 million transistors. Unlike the fully unlocked Radeon 550X 640SP, which uses the same GPU but has all 640 shaders enabled, AMD has disabled some shading units on the Radeon 540X to reach the product's target shader count. It features 512 shading units, 32 texture mapping units and 16 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 980 MHz, which can be boosted up to 1046 MHz, memory is running at 1750 MHz.
Being a dual-slot card, the AMD Radeon 540X does not require any additional power connector, its power draw is rated at 50 W maximum. Display outputs include: 1x DVI, 1x HDMI, 1x DisplayPort. Radeon 540X is connected to the rest of the system using a PCI-Express 3.0 x8 interface. The card measures 145 mm in length, and features a dual-slot cooling solution.

Graphics Processor

GPU Name
Lexa
GPU Variant
Lexa PRO
(215-0904018)
Architecture
GCN 4.0
Foundry
TSMC
Process Size
14 nm
Transistors
2,200 million
Die Size
103 mm²

Graphics Card

Release Date
Sep 5th, 2018
Generation
Polaris
(RX 500X)
Production
Active
Bus Interface
PCIe 3.0 x8

Relative Performance

7%
GeForce 210
9%
GeForce 9400 GT
11%
Radeon HD 4550
15%
Radeon HD 5450
17%
Radeon HD 6450
18%
GeForce GT 520
23%
GeForce GT 220
29%
GeForce GT 430
30%
Radeon HD 5570
32%
Radeon HD 4670
34%
GeForce GT 440
35%
GeForce GT 240
40%
GeForce 9600 GT
43%
Radeon HD 5670
46%
GeForce GT 640
47%
GeForce 9800 GT
49%
Radeon HD 6670
51%
Radeon HD 4830
54%
Radeon HD 4770
57%
Radeon HD 4850
58%
GeForce GTS 250
60%
GeForce GTS 450
62%
Radeon HD 5750
71%
Radeon HD 7750
72%
Radeon HD 5770
73%
GeForce GTX 260
74%
Radeon HD 4870
74%
Radeon Vega 8
75%
GeForce GTX 550 Ti
75%
GeForce GTX 650
80%
Radeon HD 5830
84%
Radeon HD 6790
85%
Radeon HD 4890
88%
GeForce GTX 460
89%
Radeon RX Vega 11
90%
GeForce GT 1030
91%
GeForce GTX 275
91%
Radeon HD 7770 GHz Edition
91%
GeForce GTX 280
93%
GeForce GTX 465
97%
Radeon HD 6850
99%
GeForce GTX 285
100%
Radeon 540X
107%
Radeon HD 5850
109%
GeForce GTX 650 Ti
109%
Radeon HD 7790
113%
Radeon RX 550
113%
GeForce GTX 470
117%
Radeon HD 6870
125%
Radeon HD 5870
129%
GeForce GTX 560 Ti
130%
Radeon HD 4870 X2
132%
GeForce GTX 750 Ti
133%
Radeon HD 6950
138%
GeForce GTX 295
139%
GeForce GTX 650 Ti Boost
140%
Radeon HD 7850
143%
GeForce GTX 480
149%
Radeon HD 6970
152%
Radeon R7 265
155%
Radeon R7 370
155%
Radeon RX 560
155%
GeForce GTX 660
156%
GeForce GTX 570
168%
GeForce GTX 950
170%
Radeon HD 7870 GHz Edition
174%
Radeon R9 270X
176%
GeForce GTX 660 Ti
177%
GeForce GTX 580
178%
GeForce GTX 1050
178%
Radeon HD 7950
182%
Radeon RX 460
182%
Radeon HD 5970
187%
GeForce GTX 760
201%
GeForce GTX 670
207%
GeForce GTX 960
212%
Radeon R9 380
213%
Radeon R9 285
215%
Radeon HD 7970
217%
GeForce GTX 680
223%
GeForce GTX 1050 Ti
228%
GeForce GTX 770
234%
Radeon HD 6990
239%
Radeon R9 280X
243%
GeForce GTX 590
243%
Radeon HD 7970 GHz Edition
269%
GeForce GTX 780
279%
GeForce GTX 1650
296%
Radeon RX 470
300%
Radeon R9 290
320%
Radeon R9 390
322%
Radeon R9 290X
326%
GeForce GTX 970
330%
GeForce GTX TITAN
333%
Radeon RX 570
335%
GeForce GTX 780 Ti
340%
Radeon R9 390X
341%
Radeon HD 7990
343%
Radeon RX 480
346%
GeForce GTX 690
364%
Radeon RX 580
372%
GeForce GTX 980
377%
GeForce GTX 1060 6 GB
377%
Radeon R9 FURY
379%
Radeon RX 590
414%
Radeon R9 295X2
421%
Radeon R9 FURY X
429%
GeForce GTX 980 Ti
461%
GeForce GTX TITAN X
483%
GeForce GTX 1660 Ti
486%
GeForce GTX 1070
507%
Radeon RX Vega 56
550%
GeForce GTX 1070 Ti
564%
Radeon RX Vega 64
564%
GeForce RTX 2060
579%
GeForce GTX 1080
664%
GeForce RTX 2070
664%
Radeon VII
696%
TITAN X Pascal
714%
GeForce GTX 1080 Ti
771%
GeForce RTX 2080
893%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
980 MHz
Boost Clock
1046 MHz
Memory Clock
1750 MHz
7000 MHz effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
128 bit
Bandwidth
112.0 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
16.74 GPixel/s
Texture Rate
33.47 GTexel/s
FP16 (half) performance
1,071 GFLOPS (1:1)
FP32 (float) performance
1,071 GFLOPS
FP64 (double) performance
66.94 GFLOPS (1:16)

Board Design

Slot Width
Dual-slot
Length
5.7 inches
145 mm
TDP
50 W
Outputs
1x DVI
1x HDMI
1x DisplayPort
Power Connectors
None
Board Number
D090

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.1.101
Shader Model
6.3

Lexa 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