Celeron N4000C vs Atom N550

CPU

GPU

Celeron N4000C

2 Cores2 Thrd6 WWMax: 2.6 GHz2019

Atom N550

2 Cores4 Thrd9 WWMax: 1.5 GHz2010

Performance Spectrum - CPU

Celeron N4000C

2 / 2

1,430

0.0%

1,435

+0.3%

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Celeron N4000C is positioned at rank 721 and the Atom N550 is on rank 618, so the Atom N550 offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Celeron N4000C

#708

Atom x5-Z8300

MSRP: $20|Avg: N/A

1026%

#709

Atom Z3735G

MSRP: $17|Avg: N/A

1011%

#710

Core i5-480M

MSRP: $81|Avg: $77

928%

#711

Core i5-460M

MSRP: $80|Avg: $129

924%

#712

Core i5-2540M

MSRP: $266|Avg: $10

915%

#714

Core i5-450M

MSRP: $32|Avg: $31

884%

#715

Core i3-380M

MSRP: $49|Avg: $25

848%

#716

Core i5-430M

MSRP: N/A|Avg: $33

846%

#717

Core 2 Duo T6600

MSRP: N/A|Avg: $4

823%

#721

Celeron N4000C

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Atom N550

#605

Atom x5-Z8300

MSRP: $20|Avg: N/A

818%

#606

Atom Z3735G

MSRP: $17|Avg: N/A

806%

#607

Core i5-480M

MSRP: $81|Avg: $77

740%

#608

Core i5-460M

MSRP: $80|Avg: $129

736%

#609

Core i5-2540M

MSRP: $266|Avg: $10

730%

#611

Core i5-450M

MSRP: $32|Avg: $31

705%

#612

Core i3-380M

MSRP: $49|Avg: $25

676%

#613

Core i5-430M

MSRP: N/A|Avg: $33

674%

#614

Core 2 Duo T6600

MSRP: N/A|Avg: $4

656%

#618

Atom N550

MSRP: N/A|Avg: N/A

100%

#621

Athlon II P320

MSRP: $50|Avg: $15

99%

#624

Core 3 N355

MSRP: $300|Avg: $300

98%

#627

Core i5-1335UE

MSRP: $312|Avg: $312

97%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Generational Difference: This comparison involves processors from different technological eras. The Celeron N4000C (2019) utilizes 14 nm technology and DDR4/LPDDR4 up to 2400 MT/s, providing a fundamental performance advantage.

Insight	Celeron N4000C	Atom N550
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Legacy / 14 nm)	🛑 Legacy (Pineview (2009−2011) / 45 nm)

💎 Value Proposition

The Atom N550 (2010) relies on 45 nm technology and DDR3, placing it in a different performance category relative to modern standards.

Insight	Celeron N4000C	Atom N550
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Celeron N4000C Benchmark Check

Atom N550 Benchmark Check

Technical Specifications

Side-by-side comparison of Celeron N4000C and Atom N550

Celeron N4000C

The Celeron N4000C is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency is 1.1 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB. Built on 14 nm process technology. Socket: FCBGA1090. Thermal design power (TDP): 6 Watt. Memory support: DDR4/LPDDR4 up to 2400 MT/s. Passmark benchmark score: 1,430 points. Launch price was $69.

Atom N550

The Atom N550 is manufactured by Intel. It was released in 23 August 2010 (15 years ago). It is based on the Pineview (2009−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.5 GHz, with boost up to 1.5 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 8.5 Watt. Memory support: DDR3. Passmark benchmark score: 1,435 points. Launch price was $86.

⚡

Processing Power

The Celeron N4000C packs 2 cores / 2 threads, matching the Atom N550's 2 cores. Boost clocks reach 2.6 GHz on the Celeron N4000C versus 1.5 GHz on the Atom N550 — a 53.7% clock advantage for the Celeron N4000C (base: 1.1 GHz vs 1.5 GHz). The Atom N550 is built on the Pineview (2009−2011) architecture. In PassMark, the Celeron N4000C scores 1,430 against the Atom N550's 1,435 — a 0.3% lead for the Atom N550. L3 cache: 4 MB on the Celeron N4000C vs 0 kB on the Atom N550.

Feature	Celeron N4000C	Atom N550
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	0 kB
L2 Cache	—	512K (per core)
Process	14 nm-69%	45 nm
Architecture	—	Pineview (2009−2011)
PassMark	1,430	1,435

🧠

Memory & Platform

The Celeron N4000C uses the FCBGA1090 socket (PCIe 3.0), while the Atom N550 uses FCBGA559 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron N4000C	Atom N550
Socket	FCBGA1090	FCBGA559
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	—	DDR3-667
Max RAM Capacity	—	2 GB
RAM Channels	—	1
ECC Support	—	❌
PCIe Lanes	—	0