Celeron N4000C vs Celeron 3955U

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 Celeron 3955U is on rank 616, so the Celeron 3955U 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 Celeron 3955U

#604

Atom x5-Z8300

MSRP: $20|Avg: N/A

813%

#605

Atom Z3735G

MSRP: $17|Avg: N/A

801%

#606

Core i5-480M

MSRP: $81|Avg: $77

736%

#607

Core i5-460M

MSRP: $80|Avg: $129

732%

#608

Core i5-2540M

MSRP: $266|Avg: $10

726%

#610

Core i5-450M

MSRP: $32|Avg: $31

701%

#611

Core i3-380M

MSRP: $49|Avg: $25

672%

#612

Core i5-430M

MSRP: N/A|Avg: $33

671%

#613

Core 2 Duo T6600

MSRP: N/A|Avg: $4

653%

#616

Celeron 3955U

MSRP: N/A|Avg: N/A

100%

#622

Athlon II P320

MSRP: $50|Avg: $15

98%

#625

Core 3 N355

MSRP: $300|Avg: $300

97%

#628

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	Celeron 3955U
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 (Skylake (2015−2016) / 14 nm)

💎 Value Proposition

The Celeron 3955U (2015) relies on 14 nm technology and DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600, placing it in a different performance category relative to modern standards.

Insight	Celeron N4000C	Celeron 3955U
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

Celeron 3955U Benchmark Check

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Technical Specifications

Side-by-side comparison of Celeron N4000C and Celeron 3955U

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.

Celeron 3955U

The Celeron 3955U is manufactured by Intel. It was released in 15 August 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 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: DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600. Passmark benchmark score: 1,443 points. Launch price was $107.

⚡

Processing Power

Both the Celeron N4000C and Celeron 3955U share an identical 2-core/2-thread configuration. Boost clocks reach 2.6 GHz on the Celeron N4000C versus 2 GHz on the Celeron 3955U — a 26.1% clock advantage for the Celeron N4000C (base: 1.1 GHz vs 2 GHz). The Celeron 3955U is built on the Skylake (2015−2016) architecture. In PassMark, the Celeron N4000C scores 1,430 against the Celeron 3955U's 1,443 — a 0.9% lead for the Celeron 3955U. L3 cache: 4 MB on the Celeron N4000C vs 2 MB on the Celeron 3955U.

Feature	Celeron N4000C	Celeron 3955U
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.6 GHz+30%	2 GHz
Base Clock	1.1 GHz	2 GHz+82%
L3 Cache	4 MB+100%	2 MB
L2 Cache	—	512 kB
Process	14 nm	14 nm
Architecture	—	Skylake (2015−2016)
PassMark	1,430	1,443
Geekbench 6 Single	—	431
Geekbench 6 Multi	—	741

🧠

Memory & Platform

The Celeron N4000C uses the FCBGA1090 socket (PCIe 3.0), while the Celeron 3955U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Celeron N4000C	Celeron 3955U
Socket	FCBGA1090	BGA1356
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	—	DDR4-2133
Max RAM Capacity	—	32 GB
RAM Channels	—	2
ECC Support	—	❌
PCIe Lanes	—	12

🔧

Advanced Features

Virtualization: not specified (Celeron N4000C) / VT-x, VT-d (Celeron 3955U). The Celeron 3955U includes integrated graphics (HD Graphics 510), while the Celeron N4000C requires a dedicated GPU. Primary use case: Celeron 3955U targets Budget. Direct competitor: Celeron 3955U rivals Pentium 3825U.