Celeron 5205U vs Celeron 3955U

CPU

GPU

Celeron 5205U

2 Cores2 Thrd15 WWMax: 1.9 GHz2019

Celeron 3955U

2 Cores2 Thrd15 WWMax: 2 GHz2015

Performance Spectrum - CPU

Celeron 5205U

2 / 2

1,432

0.0%

1,443

+0.8%

Celeron 877

Celeron P4600

Xeon W3503

Pentium Dual Core T4400

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 5205U is positioned at rank 1231 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 5205U

#1218

Atom x5-Z8300

MSRP: $20|Avg: N/A

8811%

#1219

Atom Z3735G

MSRP: $17|Avg: N/A

8682%

#1220

Core i5-480M

MSRP: $81|Avg: $77

7970%

#1221

Core i5-460M

MSRP: $80|Avg: $129

7934%

#1222

Core i5-2540M

MSRP: $266|Avg: $10

7861%

#1224

Core i5-450M

MSRP: $32|Avg: $31

7592%

#1225

Core i3-380M

MSRP: $49|Avg: $25

7279%

#1226

Core i5-430M

MSRP: N/A|Avg: $33

7267%

#1227

Core 2 Duo T6600

MSRP: N/A|Avg: $4

7072%

#1230

Core i7-820QM

MSRP: $546|Avg: N/A

100%

#1231

Celeron 5205U

MSRP: N/A|Avg: N/A

100%

#1232

Core Duo T2700

MSRP: $663|Avg: N/A

84%

#1234

Pentium SU4100

MSRP: $289|Avg: $15

71%

#1235

Core Solo T1400

MSRP: $200|Avg: $5

64%

#1236

Core i7-940XM

MSRP: $1096|Avg: N/A

62%

#1237

Core Solo T1350

MSRP: $200|Avg: $70

61%

#1239

Core Solo T1300

MSRP: $209|Avg: $10

55%

#1240

Core Solo T1200

MSRP: $209|Avg: $10

51%

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 5205U (2019) utilizes 14 nm technology and DDR3, DDR4, providing a fundamental performance advantage.

Insight	Celeron 5205U	Celeron 3955U
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Comet Lake-U (2019−2020) / 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 5205U	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 5205U Benchmark Check

Celeron 3955U Benchmark Check

Technical Specifications

Side-by-side comparison of Celeron 5205U and Celeron 3955U

Celeron 5205U

The Celeron 5205U is manufactured by Intel. It was released in 31 October 2019 (6 years ago). It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,432 points. Launch price was $107.

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 5205U and Celeron 3955U share an identical 2-core/2-thread configuration. Boost clocks reach 1.9 GHz on the Celeron 5205U versus 2 GHz on the Celeron 3955U — a 5.1% clock advantage for the Celeron 3955U (base: 1.9 GHz vs 2 GHz). The Celeron 5205U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Celeron 3955U uses Skylake (2015−2016) (14 nm). In PassMark, the Celeron 5205U scores 1,432 against the Celeron 3955U's 1,443 — a 0.8% lead for the Celeron 3955U. Geekbench 6 single-core — the metric most relevant to gaming — records 385 vs 431, a 11.3% lead for the Celeron 3955U that directly translates to higher frame rates. Multi-core Geekbench: 650 vs 741 (13.1% advantage for the Celeron 3955U). Both processors carry 2 MB of L3 cache.

Feature	Celeron 5205U	Celeron 3955U
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.9 GHz	2 GHz+5%
Base Clock	1.9 GHz	2 GHz+5%
L3 Cache	2 MB	2 MB
L2 Cache	1 MB+100%	512 kB
Process	14 nm	14 nm
Architecture	Comet Lake-U (2019−2020)	Skylake (2015−2016)
PassMark	1,432	1,443
Geekbench 6 Single	385	431+12%
Geekbench 6 Multi	650	741+14%

🧠

Memory & Platform

The Celeron 5205U uses the FCBGA1528 socket (PCIe 3.0), while the Celeron 3955U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-2400 memory speed. The Celeron 5205U supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 12 PCIe lanes. Chipset compatibility: Comet Lake-U (Celeron 5205U) and Sunrise Point-LP (Celeron 3955U).

Feature	Celeron 5205U	Celeron 3955U
Socket	FCBGA1528	BGA1356
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2400	DDR4-2133
Max RAM Capacity	64 GB+100%	32 GB
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	12	12

🔧

Advanced Features

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — UHD Graphics (Comet Lake) (Celeron 5205U) and HD Graphics 510 (Celeron 3955U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 5205U targets Budget, Celeron 3955U targets Budget. Direct competitor: Celeron 5205U rivals Pentium Gold 6405U; Celeron 3955U rivals Pentium 3825U.