AMD Radeon 540X Mobile vs AMD Radeon RX 6800M

VS

AMD Radeon 540X Mobile

AMD Radeon RX 6800M

We compared two Mobile platform GPUs: 2GB VRAM Radeon 540X Mobile and 12GB VRAM Radeon RX 6800M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 540X Mobile 's Advantages

Lower TDP (50W vs 145W)

AMD Radeon RX 6800M 's Advantages

Released 2 years and 3 months late

Boost Clock has increased by 118% (2390MHz vs 1095MHz)

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 32.00GB/s)

2048 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 540X Mobile

1.121 TFLOPS

Radeon RX 6800M +991%

12.24 TFLOPS

Radeon 540X Mobile

VS

Radeon RX 6800M

Graphics Card

Feb 2019

Release Date

May 2021

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

980 MHz

Base Clock

2116 MHz

1095 MHz

Boost Clock

2390 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

192bit

32.00GB/s

Bandwidth

384.0GB/s

Render Config

8

Compute Units

40

-

512

Shading Units

2560

32

TMUs

160

16

ROPs

64

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

17.52 GPixel/s

Pixel Rate

153.0 GPixel/s

35.04 GTexel/s

Texture Rate

382.4 GTexel/s

1121 GFLOPS

FP16 (half)

24.47 TFLOPS

1121 GFLOPS

FP32 (float)

12.24 TFLOPS

70.08 GFLOPS

FP64 (double)

764.8 GFLOPS

Board Design

50W

TDP

145W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Lexa

GPU Name

Navi 22

Lexa PRO (215-0904018)

GPU Variant

Navi 22 XTM

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

2.2 billion

Transistors

17.2 billion

103 mm²

Die Size

335 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.5

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