AMD Radeon RX 6800M vs AMD Radeon RX 540 Mobile

VS

AMD Radeon RX 6800M

AMD Radeon RX 540 Mobile

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

Main Differences

AMD Radeon RX 6800M 's Advantages

Released 3 years and 6 months late

Boost Clock has increased by 96% (2390MHz vs 1219MHz)

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 96.00GB/s)

2048 additional rendering cores

AMD Radeon RX 540 Mobile 's Advantages

Lower TDP (50W vs 145W)

Score

Benchmark

FP32 (float)

Radeon RX 6800M +880%

12.24 TFLOPS

Radeon RX 540 Mobile

1.248 TFLOPS

Radeon RX 6800M

VS

Radeon RX 540 Mobile

Graphics Card

May 2021

Release Date

Nov 2017

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

2116 MHz

Base Clock

1124 MHz

2390 MHz

Boost Clock

1219 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

384.0GB/s

Bandwidth

96.00GB/s

Render Config

40

Compute Units

8

-

2560

Shading Units

512

160

TMUs

32

64

ROPs

16

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

512 KB

96 MB

L3 Cache

-

Theoretical Performance

153.0 GPixel/s

Pixel Rate

19.50 GPixel/s

382.4 GTexel/s

Texture Rate

39.01 GTexel/s

24.47 TFLOPS

FP16 (half)

1248 GFLOPS

12.24 TFLOPS

FP32 (float)

1248 GFLOPS

764.8 GFLOPS

FP64 (double)

78.02 GFLOPS

Board Design

145W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 22

GPU Name

Lexa

Navi 22 XTM

GPU Variant

Lexa PRO (215-0904018)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

17.2 billion

Transistors

2.2 billion

335 mm²

Die Size

103 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

6.5

Shader Model

6.4

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