Core i5-13400F vs Mobile Sempron SI-42

Core i5-13400F vs Mobile Sempron SI-42 Performance Spectrum

Core i5-13400F

10 / 16

25,029

+7438.9%

332

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen Threadripper 7970X

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Core i5-13400F vs Mobile Sempron SI-42 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i5-13400F vs Mobile Sempron SI-42: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i5-13400F

2023

Why buy it

✅Better for gaming: +2471.0% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 65W instead of 512W, a 447W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of S1g2 and older memory support.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Mobile Sempron SI-42.

Trade-offs

❌Launch MSRP is still $196 MSRP, while Mobile Sempron SI-42 mostly shows up through inconsistent older-market listings.

Mobile Sempron SI-42

2009

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-13400F across 50 shared CPU benchmark tests.
❌Lower PassMark (332 vs 25,029).
❌687.7% higher power demand at 512W vs 65W.
❌Older platform position on S1g2, while Core i5-13400F moves to LGA1700 and DDR5.
❌No boxed cooler included, unlike Core i5-13400F.

Quick Answers

So, is Core i5-13400F better than Mobile Sempron SI-42?

Yes. Core i5-13400F is the better all-around CPU here. It gives you a 2471.0% average FPS lead across 50 shared CPU game tests in our data, 7438.9% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-13400F is the better pick. According to our tests, it delivers 2471.0% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i5-13400F is the stronger fit. You are getting 7438.9% better PassMark, backed by 10 cores and 16 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Core i5-13400F is the better buy right now. Core i5-13400F comes in at an unclear MSRP at $196 MSRP versus unclear MSRP, and it still gives you a 2471.0% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (127.7 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Core i5-13400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2009), a healthier platform with LGA1700 and DDR5 instead of S1g2, and more multi-core headroom with 10 cores / 16 threads instead of 1/1. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-13400F vs Mobile Sempron SI-42 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i5-13400F

The Core i5-13400F is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 10 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 4.6 GHz. L3 cache: 20 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5, DDR4. Passmark benchmark score: 25,029 points. Launch price was $196.

Mobile Sempron SI-42

The Mobile Sempron SI-42 is manufactured by AMD. It was released in 1 September 2009 (16 years ago). It is based on the Sable (2008−2009) architecture. It features 1 cores and 1 threads. Max frequency: 2.1 GHz. L2 cache: 512 kB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 512 kB. Passmark benchmark score: 332 points. Launch price was $69.

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Processing Power

The Core i5-13400F packs 10 cores / 16 threads, while the Mobile Sempron SI-42 offers 1 cores / 1 threads — the Core i5-13400F has 9 more cores. Boost clocks reach 4.6 GHz on the Core i5-13400F versus 2.1 GHz on the Mobile Sempron SI-42 — a 74.6% clock advantage for the Core i5-13400F. The Core i5-13400F uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Mobile Sempron SI-42 uses Sable (2008−2009) (65 nm). In PassMark, the Core i5-13400F scores 25,029 against the Mobile Sempron SI-42's 332 — a 194.8% lead for the Core i5-13400F.

Feature	Core i5-13400F	Mobile Sempron SI-42
Cores / Threads	10 / 16+900%	1 / 1
Boost Clock	4.6 GHz+119%	2.1 GHz
Base Clock	2.5 GHz	—
L3 Cache	20 MB (total)	—
L2 Cache	1.25 MB (per core)+150%	512 kB
Process	Intel 7 nm-89%	65 nm
Architecture	Raptor Lake-S (2023−2024)	Sable (2008−2009)
PassMark	25,029+7439%	332
Cinebench R23 Multi	16,211	—
Geekbench 6 Single	2,407	—
Geekbench 6 Multi	11,408	—

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Memory & Platform

The Core i5-13400F uses the LGA1700 socket (PCIe 5.0), while the Mobile Sempron SI-42 uses S1g2 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i5-13400F	Mobile Sempron SI-42
Socket	LGA1700	S1g2
PCIe Generation	PCIe 5.0+150%	PCIe 2.0
Max RAM Speed	DDR5-4800, DDR4-3200	—
Max RAM Capacity	192 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-13400F) / not specified (Mobile Sempron SI-42). Primary use case: Core i5-13400F targets Gaming. Direct competitor: Core i5-13400F rivals Ryzen 5 7600.