AMD Radeon RX 7900M vs AMD Radeon 540X Mobile

VS

AMD Radeon RX 7900M

AMD Radeon 540X Mobile

We compared two Mobile platform GPUs: 16GB VRAM Radeon RX 7900M and 2GB VRAM Radeon 540X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900M 's Advantages

Released 4 years and 8 months late

Boost Clock has increased by 91% (2090MHz vs 1095MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 32.00GB/s)

4096 additional rendering cores

AMD Radeon 540X Mobile 's Advantages

Lower TDP (50W vs 180W)

Score

Benchmark

FP32 (float)

Radeon RX 7900M +3336%

38.52 TFLOPS

Radeon 540X Mobile

1.121 TFLOPS

Radeon RX 7900M

VS

Radeon 540X Mobile

Graphics Card

Oct 2023

Release Date

Feb 2019

Navi Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1825 MHz

Base Clock

980 MHz

2090 MHz

Boost Clock

1095 MHz

2250 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

576.0GB/s

Bandwidth

32.00GB/s

Render Config

72

Compute Units

8

-

4608

Shading Units

512

288

TMUs

32

192

ROPs

16

-

72

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

512 KB

64 MB

L3 Cache

-

Theoretical Performance

401.3 GPixel/s

Pixel Rate

17.52 GPixel/s

601.9 GTexel/s

Texture Rate

35.04 GTexel/s

77.05 TFLOPS

FP16 (half)

1121 GFLOPS

38.52 TFLOPS

FP32 (float)

1121 GFLOPS

1204 GFLOPS

FP64 (double)

70.08 GFLOPS

Board Design

180W

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

Lexa

Navi 31

GPU Variant

Lexa PRO (215-0904018)

RDNA 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

5 nm

Process Size

14 nm

57.7 billion

Transistors

2.2 billion

529 mm²

Die Size

103 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.2

-

6.7

Shader Model

6.4

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