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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 February 2019. 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 1095 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
Feb 11th, 2019
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
14%
Radeon HD 5450
17%
Radeon HD 6450
17%
GeForce GT 520
22%
GeForce GT 220
28%
GeForce GT 430
28%
Radeon HD 5570
31%
Radeon HD 4670
33%
GeForce GT 440
33%
GeForce GT 240
38%
GeForce 9600 GT
41%
Radeon HD 5670
44%
GeForce GT 640
45%
GeForce 9800 GT
47%
Radeon HD 6670
48%
Radeon HD 4830
52%
Radeon HD 4770
55%
Radeon HD 4850
56%
GeForce GTS 250
57%
GeForce GTS 450
59%
Radeon HD 5750
68%
Radeon HD 7750
68%
Radeon HD 5770
70%
GeForce GTX 260
70%
Radeon HD 4870
71%
Radeon Vega 8
71%
GeForce GTX 550 Ti
72%
GeForce GTX 650
76%
Radeon HD 5830
80%
Radeon HD 6790
81%
Radeon HD 4890
84%
GeForce GTX 460
85%
Radeon RX Vega 11
86%
GeForce GT 1030
87%
GeForce GTX 275
87%
Radeon HD 7770 GHz Edition
87%
GeForce GTX 280
89%
GeForce GTX 465
93%
Radeon HD 6850
95%
GeForce GTX 285
100%
Radeon 540X
102%
Radeon HD 5850
104%
GeForce GTX 650 Ti
104%
Radeon HD 7790
108%
Radeon RX 550
108%
GeForce GTX 470
112%
Radeon HD 6870
120%
Radeon HD 5870
123%
GeForce GTX 560 Ti
124%
Radeon HD 4870 X2
126%
GeForce GTX 750 Ti
127%
Radeon HD 6950
131%
GeForce GTX 295
133%
GeForce GTX 650 Ti Boost
134%
Radeon HD 7850
136%
GeForce GTX 480
143%
Radeon HD 6970
145%
Radeon R7 265
148%
Radeon R7 370
148%
Radeon RX 560
148%
GeForce GTX 660
149%
GeForce GTX 570
161%
GeForce GTX 950
162%
Radeon HD 7870 GHz Edition
166%
Radeon R9 270X
168%
GeForce GTX 660 Ti
169%
GeForce GTX 580
170%
GeForce GTX 1050
170%
Radeon HD 7950
173%
Radeon RX 460
174%
Radeon HD 5970
179%
GeForce GTX 760
192%
GeForce GTX 670
197%
GeForce GTX 960
202%
Radeon R9 380
204%
Radeon R9 285
206%
Radeon HD 7970
208%
GeForce GTX 680
213%
GeForce GTX 1050 Ti
218%
GeForce GTX 770
223%
Radeon HD 6990
229%
Radeon R9 280X
232%
GeForce GTX 590
232%
Radeon HD 7970 GHz Edition
257%
GeForce GTX 780
266%
GeForce GTX 1650
283%
Radeon RX 470
287%
Radeon R9 290
306%
Radeon R9 390
307%
Radeon R9 290X
312%
GeForce GTX 970
316%
GeForce GTX TITAN
318%
Radeon RX 570
320%
GeForce GTX 780 Ti
325%
Radeon R9 390X
326%
Radeon HD 7990
328%
Radeon RX 480
330%
GeForce GTX 690
348%
Radeon RX 580
355%
GeForce GTX 980
360%
GeForce GTX 1060 6 GB
360%
Radeon R9 FURY
362%
Radeon RX 590
396%
Radeon R9 295X2
403%
Radeon R9 FURY X
409%
GeForce GTX 980 Ti
440%
GeForce GTX TITAN X
462%
GeForce GTX 1660 Ti
464%
GeForce GTX 1070
484%
Radeon RX Vega 56
525%
GeForce GTX 1070 Ti
539%
Radeon RX Vega 64
539%
GeForce RTX 2060
553%
GeForce GTX 1080
635%
GeForce RTX 2070
635%
Radeon VII
665%
TITAN X Pascal
682%
GeForce GTX 1080 Ti
737%
GeForce RTX 2080
853%
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
1095 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
17.52 GPixel/s
Texture Rate
35.04 GTexel/s
FP16 (half) performance
1,121 GFLOPS (1:1)
FP32 (float) performance
1,121 GFLOPS
FP64 (double) performance
70.08 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