Celeron 430 vs Sempron 3400+

Celeron 430 vs Sempron 3400+ Performance Spectrum

Celeron 430

1 / 1

448

+3.5%

Atom 230

Pentium 4 2.26

Pentium M 1.40

Mobile Pentium 4 2.66

433

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

Celeron 430 vs Sempron 3400+ 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.

Celeron 430 vs Sempron 3400+: Pros, Cons & Final Verdict

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

Celeron 430

2007

Why buy it

✅+3.5% higher PassMark.
✅Draws 35W instead of 62W, a 27W reduction.

Trade-offs

❌Launch MSRP is still $49 MSRP, while Sempron 3400+ mostly shows up through inconsistent older-market listings.

Sempron 3400+

2005

Why buy it

Trade-offs

❌Lower PassMark (433 vs 448).
❌77.1% higher power demand at 62W vs 35W.

Quick Answers

So, is Celeron 430 better than Sempron 3400+?

It depends on what you want from the system. For gaming, Sempron 3400+ is ahead with 11.1% higher max boost clock. For rendering, compiling, streaming, and heavier multitasking, Celeron 430 pulls ahead with 3.5% better PassMark.

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

For streaming, content creation, and heavier multitasking, Celeron 430 is the stronger fit. You are getting 3.5% better PassMark, backed by 1 cores and 1 threads.

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

Celeron 430 is the better buy right now. Celeron 430 comes in at an unclear MSRP at $49 MSRP versus unclear MSRP, and it still gives you 3.5% better PassMark. The compromise is that Sempron 3400+ is still the better pure gaming CPU with 11.1% higher max boost clock. It is also 100.0% better value on MSRP (9.1 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 430 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2007 vs 2005) and more multi-core headroom with 1 cores / 1 threads instead of 1/1. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron 430 vs Sempron 3400+ Technical Specifications

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

Celeron 430

The Celeron 430 is manufactured by Intel. It was released in 3 June 2007 (18 years ago). It is based on the Conroe-L (2007−2008) architecture. It features 1 cores and 1 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 35 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 448 points. Launch price was $50.

Sempron 3400+

The Sempron 3400+ is manufactured by AMD. It was released in 1 October 2005 (20 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 128 kB. Built on 90 nm process technology. Socket: 939. Thermal design power (TDP): 62 Watt. Memory support: DDR1. Passmark benchmark score: 433 points. Launch price was $30.

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Processing Power

Both the Celeron 430 and Sempron 3400+ share an identical 1-core/1-thread configuration. Boost clocks reach 1.8 GHz on the Celeron 430 versus 2 GHz on the Sempron 3400+ — a 10.5% clock advantage for the Sempron 3400+. The Celeron 430 uses the Conroe-L (2007−2008) architecture (65 nm), while the Sempron 3400+ uses Palermo (2001−2005) (90 nm). In PassMark, the Celeron 430 scores 448 against the Sempron 3400+'s 433 — a 3.4% lead for the Celeron 430. Both processors carry 0 kB of L3 cache.

Feature	Celeron 430	Sempron 3400+
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.8 GHz	2 GHz+11%
Base Clock	1.8 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512 kB+300%	128 kB
Process	65 nm-28%	90 nm
Architecture	Conroe-L (2007−2008)	Palermo (2001−2005)
PassMark	448+3%	433
Geekbench 6 Single	226	—

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Memory & Platform

The Celeron 430 uses the LGA775 socket (PCIe 1.1), while the Sempron 3400+ uses 939 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron 430	Sempron 3400+
Socket	LGA775	939
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-800	—
Max RAM Capacity	4 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	0	—

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Advanced Features

Virtualization: No (Celeron 430) / not specified (Sempron 3400+). Primary use case: Celeron 430 targets Budget. Direct competitor: Celeron 430 rivals Pentium 4 2.80.