AMD Radeon 540X Mobile vs AMD Radeon RX 7900M

VS

AMD Radeon 540X Mobile

AMD Radeon RX 7900M

We compared two Mobile platform GPUs: 2GB VRAM Radeon 540X Mobile and 16GB VRAM Radeon RX 7900M 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 180W)

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

Score

Benchmark

FP32 (float)

Radeon 540X Mobile

1.121 TFLOPS

Radeon RX 7900M +3336%

38.52 TFLOPS

Radeon 540X Mobile

VS

Radeon RX 7900M

Graphics Card

Feb 2019

Release Date

Oct 2023

Mobility Radeon

Generation

Navi Mobile

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

980 MHz

Base Clock

1825 MHz

1095 MHz

Boost Clock

2090 MHz

1000 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

256bit

32.00GB/s

Bandwidth

576.0GB/s

Render Config

8

Compute Units

72

-

512

Shading Units

4608

32

TMUs

288

16

ROPs

192

-

RT Cores

72

16 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

-

L3 Cache

64 MB

Theoretical Performance

17.52 GPixel/s

Pixel Rate

401.3 GPixel/s

35.04 GTexel/s

Texture Rate

601.9 GTexel/s

1121 GFLOPS

FP16 (half)

77.05 TFLOPS

1121 GFLOPS

FP32 (float)

38.52 TFLOPS

70.08 GFLOPS

FP64 (double)

1204 GFLOPS

Board Design

50W

TDP

180W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Lexa

GPU Name

Navi 31

Lexa PRO (215-0904018)

GPU Variant

Navi 31

GCN 4.0

Architecture

RDNA 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

5 nm

2.2 billion

Transistors

57.7 billion

103 mm²

Die Size

529 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.2

Vulkan

1.3

-

6.4

Shader Model

6.7

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