Celeron N4000 vs Pentium 4405Y

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 N4000 vs Pentium 4405Y 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 N4000 vs Pentium 4405Y: Pros, Cons & Final Verdict

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

Celeron N4000

2017

Why buy it

✅+100% larger total L3 cache (4 MB vs 2 MB).
✅Draws 6W instead of 512W, a 506W reduction.

Trade-offs

❌Lower PassMark (1,472 vs 1,490).
❌Launch MSRP is still $107 MSRP, while Pentium 4405Y mostly shows up through inconsistent older-market listings.

Pentium 4405Y

2015

Why buy it

✅+1.2% higher PassMark.

Trade-offs

❌Smaller total L3 cache (2 MB vs 4 MB).
❌8433.3% higher power demand at 512W vs 6W.

Quick Answers

So, is Celeron N4000 better than Pentium 4405Y?

It depends on what you want from the system. For gaming, Celeron N4000 is ahead with a 0.2% average FPS lead across 25 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Pentium 4405Y pulls ahead with 1.2% better PassMark. Celeron N4000 also has the bigger cache pool with 100% larger total L3 cache (4 MB vs 2 MB).

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

For streaming, content creation, and heavier multitasking, Pentium 4405Y is the stronger fit. You are getting 1.2% better PassMark, backed by 2 cores and 4 threads.

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

Celeron N4000 is the better buy right now. Celeron N4000 comes in at an unclear MSRP at $107 MSRP versus unclear MSRP, and it still gives you a 0.2% average FPS lead across 25 shared CPU game tests in our data. The compromise is that Pentium 4405Y is still stronger for heavier multi-core work with 1.2% better PassMark. It is also 100.0% better value on MSRP (13.8 vs 0.0 PassMark/$), 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 N4000 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2015) and 100% larger total L3 cache (4 MB vs 2 MB). That makes it the safer long-term bet.

Celeron N4000 vs Pentium 4405Y Technical Specifications

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

Celeron N4000

The Celeron N4000 is manufactured by Intel. It was released in 11 December 2017 (7 years ago). It is based on the Goldmont Plus (2017) architecture. It features 2 cores and 2 threads. Base frequency is 1.1 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB. L2 cache: 4 MB. Built on 14 nm process technology. Socket: FCBGA1090. Thermal design power (TDP): 6 Watt. Memory support: DDR4. Passmark benchmark score: 1,472 points. Launch price was $107.

Pentium 4405Y

The Pentium 4405Y 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 1.5 GHz, with boost up to 1.5 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: FCBGA1515. Thermal design power (TDP): 6 Watt. Memory support: DDR3. Passmark benchmark score: 1,490 points. Launch price was $161.

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Processing Power

The Celeron N4000 packs 2 cores / 2 threads, matching the Pentium 4405Y's 2 cores. Boost clocks reach 2.6 GHz on the Celeron N4000 versus 1.5 GHz on the Pentium 4405Y — a 53.7% clock advantage for the Celeron N4000 (base: 1.1 GHz vs 1.5 GHz). The Celeron N4000 uses the Goldmont Plus (2017) architecture (14 nm), while the Pentium 4405Y uses NetBurst (2000−2006) (14 nm). In PassMark, the Celeron N4000 scores 1,472 against the Pentium 4405Y's 1,490 — a 1.2% lead for the Pentium 4405Y. L3 cache: 4 MB on the Celeron N4000 vs 2 MB on the Pentium 4405Y.

Feature	Celeron N4000	Pentium 4405Y
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.6 GHz+73%	1.5 GHz
Base Clock	1.1 GHz	1.5 GHz+36%
L3 Cache	4 MB+100%	2 MB
L2 Cache	4 MB+700%	512 kB
Process	14 nm	14 nm
Architecture	Goldmont Plus (2017)	NetBurst (2000−2006)
PassMark	1,472	1,490+1%

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Memory & Platform

The Celeron N4000 uses the FCBGA1090 socket (PCIe 3.0), while the Pentium 4405Y uses FCBGA1515 (PCIe 3.0) — making them incompatible on the same motherboard.