Ryzen 5 8540U vs Mobile Sempron SI-42

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Aggregate performance score

Mobile Sempron SI-42
2009
1 core / 1 thread, 25 Watt
0.21
Ryzen 5 8540U
2023
6 cores / 12 threads, 28 Watt
11.84
+5538%

Ryzen 5 8540U outperforms Mobile Sempron SI-42 by a whopping 5538% based on our aggregate benchmark results.

Primary details

Comparing Mobile Sempron SI-42 and Ryzen 5 8540U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking3219659
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Mobile Sempronno data
Power efficiency0.7939.99
Architecture codenameSable (2008−2009)Hawk Point-U (Zen 4 + Zen 4c) (2023)
Release date1 September 2009 (15 years ago)6 December 2023 (1 year ago)

Detailed specifications

Mobile Sempron SI-42 and Ryzen 5 8540U basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores1 (Single-Core)6 (Hexa-Core)
Threads112
Base clock speedno data3.2 GHz
Boost clock speed2.1 GHz4.9 GHz
Bus rate1800 MHzno data
L1 cache128 KB64 KB (per core)
L2 cache512 KB1 MB (per core)
L3 cacheno data16 MB (shared)
Chip lithography65 nm4 nm
Die sizeno data137 mm2
Maximum core temperature100 °C100 °C
Number of transistorsno data20,900 million
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Mobile Sempron SI-42 and Ryzen 5 8540U compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configurationno data1
SocketS1g2FP7
Power consumption (TDP)25 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Mobile Sempron SI-42 and Ryzen 5 8540U. You'll probably need this information if you require some particular technology.

Instruction set extensions65 nm, 1.075 - 1.125AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Mobile Sempron SI-42 and Ryzen 5 8540U are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Mobile Sempron SI-42 and Ryzen 5 8540U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 740M ( - 2800 MHz)

Peripherals

Specifications and connection of peripherals supported by Mobile Sempron SI-42 and Ryzen 5 8540U.

PCIe versionno data4.0
PCI Express lanesno data14

Gaming performance

Pros & cons summary


Performance score 0.21 11.84
Recency 1 September 2009 6 December 2023
Physical cores 1 6
Threads 1 12
Chip lithography 65 nm 4 nm
Power consumption (TDP) 25 Watt 28 Watt

Mobile Sempron SI-42 has 12% lower power consumption.

Ryzen 5 8540U, on the other hand, has a 5538.1% higher aggregate performance score, an age advantage of 14 years, 500% more physical cores and 1100% more threads, and a 1525% more advanced lithography process.

The Ryzen 5 8540U is our recommended choice as it beats the Mobile Sempron SI-42 in performance tests.


Should you still have questions on choice between Mobile Sempron SI-42 and Ryzen 5 8540U, ask them in Comments section, and we shall answer.

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AMD Mobile Sempron SI-42
Mobile Sempron SI-42
AMD Ryzen 5 8540U
Ryzen 5 8540U

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Community ratings

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3.1 14 votes

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Questions & comments

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