Celeron M 900 vs Pentium 4405U

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 M 900 vs Pentium 4405U 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 M 900 vs Pentium 4405U: Pros, Cons & Final Verdict

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

Celeron M 900

2009

Why buy it

✅Draws 1W instead of 512W, a 511W reduction.

Trade-offs

❌Lower PassMark (2,101 vs 2,122).
❌Launch MSRP is still $86 MSRP, while Pentium 4405U mostly shows up through inconsistent older-market listings.

Pentium 4405U

2015

Why buy it

✅+1% higher PassMark.

Trade-offs

❌51100% higher power demand at 512W vs 1W.

Quick Answers

So, is Celeron M 900 better than Pentium 4405U?

It depends on what you want from the system. For gaming, Celeron M 900 is ahead with a 1.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Pentium 4405U pulls ahead with 1% better PassMark.

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

For streaming, content creation, and heavier multitasking, Pentium 4405U is the stronger fit. You are getting 1% better PassMark, backed by 2 cores and 4 threads.

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

Celeron M 900 is the better buy right now. Celeron M 900 comes in at an unclear MSRP at $86 MSRP versus unclear MSRP, and it still gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Pentium 4405U is still stronger for heavier multi-core work with 1% better PassMark. It is also 100.0% better value on MSRP (24.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium 4405U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2009) and more multi-core headroom with 2 cores / 4 threads instead of 1/1. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron M 900 vs Pentium 4405U Technical Specifications

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

Celeron M 900

The Celeron M 900 is manufactured by Intel. It was released in 1 April 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 2,101 points. Launch price was $70.

Pentium 4405U

The Pentium 4405U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 2,122 points. Launch price was $161.

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Processing Power

The Celeron M 900 packs 1 cores / 1 threads, while the Pentium 4405U offers 2 cores / 4 threads — the Pentium 4405U has 1 more core. Boost clocks reach 2.2 GHz on the Celeron M 900 versus 2.1 GHz on the Pentium 4405U — a 4.7% clock advantage for the Celeron M 900. The Celeron M 900 uses the Penryn (2008−2011) architecture (45 nm), while the Pentium 4405U uses NetBurst (2000−2006) (14 nm). In PassMark, the Celeron M 900 scores 2,101 against the Pentium 4405U's 2,122 — a 1% lead for the Pentium 4405U.

Feature	Celeron M 900	Pentium 4405U
Cores / Threads	1 / 1	2 / 4+100%
Boost Clock	2.2 GHz+5%	2.1 GHz
Base Clock	—	2.1 GHz
L3 Cache	—	2 MB
L2 Cache	1 MB+100%	512 kB
Process	45 nm	14 nm-69%
Architecture	Penryn (2008−2011)	NetBurst (2000−2006)
PassMark	2,101	2,122

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Memory & Platform

The Celeron M 900 uses the PGA478 socket (PCIe 1.1), while the Pentium 4405U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.