Celeron N4505 vs Xeon E5420

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.

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

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Xeon E5420

#1

Xeon Platinum 8454H

MSRP: $6540|Avg: N/A

742225%

#6

Xeon Gold 6240R

MSRP: $2444|Avg: N/A

140139%

#10

Xeon 6337P

MSRP: $60|Avg: $5

124507%

#15

EPYC 9174F

MSRP: $194|Avg: $30

96186%

#1033

Xeon E5420

MSRP: $7214|Avg: $6500

100%

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 N4505 (2021) utilizes 10 nm technology and DDR4, providing a fundamental performance advantage.

Insight	Celeron N4505	Xeon E5420
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	✅ More affordable ($0)	⚠️ Higher cost ($6,500)
Longevity	✨ Modern (Jasper Lake (2021) / 10 nm)	🛑 Legacy (Harpertown (2007−2008) / 45 nm)

💎 Value Proposition

The Xeon E5420 (2007) relies on 45 nm technology and **DDR2, DDR3 Depends on motherboard**, placing it in a different performance category relative to modern standards.

Insight	Celeron N4505	Xeon E5420
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($0)	⚠️ Higher cost ($6,500)

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 N4505 Benchmark Check

Xeon E5420 Benchmark Check

Technical Specifications

Side-by-side comparison of Celeron N4505 and Xeon E5420

Celeron N4505

The Celeron N4505 is manufactured by Intel. It was released in 2007-01-01. It is based on the Jasper Lake (2021) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2.9 GHz. L3 cache: 4 MB (total). L2 cache: 1.5 MB (total). Built on 10 nm process technology. Socket: BGA1338. Thermal design power (TDP): 10 Watt. Memory support: DDR4. Passmark benchmark score: 2,037 points. Launch price was $69.

Xeon E5420

The Xeon E5420 is manufactured by Intel. It was released in 11 November 2007 (18 years ago). It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 12 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 80 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,044 points. Launch price was $316.

⚡

Processing Power

The Celeron N4505 packs 2 cores / 2 threads, while the Xeon E5420 offers 4 cores / 4 threads — the Xeon E5420 has 2 more cores. Boost clocks reach 2.9 GHz on the Celeron N4505 versus 2.5 GHz on the Xeon E5420 — a 14.8% clock advantage for the Celeron N4505 (base: 2 GHz vs 2.5 GHz). The Celeron N4505 uses the Jasper Lake (2021) architecture (10 nm), while the Xeon E5420 uses Harpertown (2007−2008) (45 nm). In PassMark, the Celeron N4505 scores 2,037 against the Xeon E5420's 2,044 — a 0.3% lead for the Xeon E5420. L3 cache: 4 MB (total) on the Celeron N4505 vs 12 MB L2 Cache on the Xeon E5420.

Feature	Celeron N4505	Xeon E5420
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	2.9 GHz+16%	2.5 GHz
Base Clock	2 GHz	2.5 GHz+25%
L3 Cache	4 MB (total)	12 MB L2 Cache+200%
L2 Cache	1.5 MB (total)	6 MB (total)+300%
Process	10 nm-78%	45 nm
Architecture	Jasper Lake (2021)	Harpertown (2007−2008)
PassMark	2,037	2,044
Geekbench 6 Single	—	314
Geekbench 6 Multi	—	881

🧠

Memory & Platform

The Celeron N4505 uses the BGA1338 socket (PCIe 4.0), while the Xeon E5420 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron N4505	Xeon E5420
Socket	BGA1338	LGA771
PCIe Generation	PCIe 4.0+100%	PCIe 2.0
Max RAM Speed	—	DDR2-667
Max RAM Capacity	—	32 GB
RAM Channels	—	4
ECC Support	—	✅
PCIe Lanes	—	32