Celeron 5305U vs Atom Z2580

Celeron 5305U

2 Cores2 Thrd15 WWMax: 2.3 GHz2020

Atom Z2580

2 Cores4 Thrd3 WWMax: 2 GHz2013

Performance Spectrum - CPU

Celeron 5305U

2 / 2

1,307

+0.3%

1,303

0.0%

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 5305U is positioned at rank 656 and the Atom Z2580 is on rank 9, so the Atom Z2580 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 5305U

#644

Atom x5-Z8300

MSRP: $20|Avg: N/A

898%

#645

Atom Z3735G

MSRP: $17|Avg: N/A

885%

#646

Core i5-480M

MSRP: $81|Avg: $77

812%

#647

Core i5-460M

MSRP: $80|Avg: $129

808%

#648

Core i5-2540M

MSRP: $266|Avg: $10

801%

#650

Core i5-450M

MSRP: $32|Avg: $31

774%

#651

Core i3-380M

MSRP: $49|Avg: $25

742%

#652

Core i5-430M

MSRP: N/A|Avg: $33

741%

#653

Core 2 Duo T6600

MSRP: N/A|Avg: $4

721%

#656

Celeron 5305U

MSRP: N/A|Avg: N/A

100%

#662

Athlon II P360

MSRP: $60|Avg: $10

99%

#665

Athlon X2 QL-64

MSRP: $50|Avg: $15

99%

#666

Core 3 N350

MSRP: $225|Avg: $220

99%

#668

FX-7500

MSRP: $100|Avg: $25

98%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Atom Z2580

Atom x5-Z8300

MSRP: $20|Avg: N/A

113%

Atom Z3735G

MSRP: $17|Avg: N/A

111%

Core i5-480M

MSRP: $81|Avg: $77

102%

Core i5-460M

MSRP: $80|Avg: $129

101%

Core i5-2540M

MSRP: $266|Avg: $10

100%

Atom Z2580

MSRP: N/A|Avg: N/A

100%

#10

Core i5-450M

MSRP: $32|Avg: $31

97%

#11

Core i3-380M

MSRP: $49|Avg: $25

93%

#12

Core i5-430M

MSRP: N/A|Avg: $33

93%

#13

Core 2 Duo T6600

MSRP: N/A|Avg: $4

90%

#17

Core i3-350M

MSRP: $130|Avg: $10

83%

#18

Atom x5-E8000

MSRP: $18|Avg: N/A

82%

#19

Core 2 Duo T5900

MSRP: N/A|Avg: $5

81%

#22

Core i3-3130M

MSRP: $225|Avg: N/A

73%

#23

Core 2 Duo T5550

MSRP: N/A|Avg: $5

70%

#24

Core 2 Duo T7100

MSRP: $197|Avg: $15

70%

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 5305U (2020) utilizes 14 nm technology and DDR4-2400, LPDDR3-2133, providing a fundamental performance advantage.

Insight	Celeron 5305U	Atom Z2580
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Comet Lake-U (2019−2020) / 14 nm)	🛑 Legacy (Clovertrail (2013) / 32 nm)

💎 Value Proposition

The Atom Z2580 (2013) relies on 32 nm technology and DDR2, placing it in a different performance category relative to modern standards.

Insight	Celeron 5305U	Atom Z2580
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 5305U Benchmark Check

Atom Z2580 Benchmark Check

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Celeron 5305U and Atom Z2580

Celeron 5305U

The Celeron 5305U is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 2 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 2 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2400, LPDDR3-2133. Passmark benchmark score: 1,307 points. Launch price was $69.

Atom Z2580

The Atom Z2580 is manufactured by Intel. It was released in 27 February 2013 (12 years ago). It is based on the Clovertrail (2013) architecture. It features 2 cores and 4 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 32 nm process technology. Socket: FC-MB4760. Thermal design power (TDP): 3 Watt. Memory support: DDR2. Passmark benchmark score: 1,303 points. Launch price was $69.

⚡

Processing Power

The Celeron 5305U packs 2 cores / 2 threads, matching the Atom Z2580's 2 cores. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 2 GHz on the Atom Z2580 — a 14% clock advantage for the Celeron 5305U. The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Atom Z2580 uses Clovertrail (2013) (32 nm). In PassMark, the Celeron 5305U scores 1,307 against the Atom Z2580's 1,303 — a 0.3% lead for the Celeron 5305U. L3 cache: 2 MB on the Celeron 5305U vs 0 kB on the Atom Z2580.

Feature	Celeron 5305U	Atom Z2580
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.3 GHz+15%	2 GHz
Base Clock	2.3 GHz	—
L3 Cache	2 MB	0 kB
L2 Cache	—	512K (per core)
Process	14 nm-56%	32 nm
Architecture	Comet Lake-U (2019−2020)	Clovertrail (2013)
PassMark	1,307	1,303
Geekbench 6 Single	480	—
Geekbench 6 Multi	865	—

🧠

Memory & Platform

The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Atom Z2580 uses FC-MB4760 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus LPDDR2-1066 on the Atom Z2580 — the Celeron 5305U supports 66.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 5305U supports up to 64 GB of RAM compared to 2 GB — 187.9% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 0 (Atom Z2580) — the Celeron 5305U offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and Intel BGA1264 (Atom Z2580).

Feature	Celeron 5305U	Atom Z2580
Socket	FCBGA1528	FC-MB4760
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2400+100%	LPDDR2-1066
Max RAM Capacity	64 GB+3100%	2 GB
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	12	0

🔧

Advanced Features

Virtualization: VT-x, VT-d (Celeron 5305U) / not specified (Atom Z2580). Both include integrated graphics — UHD Graphics (Comet Lake) (Celeron 5305U) and PowerVR SGX544MP2 (Atom Z2580) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 5305U targets Budget. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U.