Core i7-840QM vs Celeron N4505

Core i7-840QM

4 Cores8 Thrd45 WWMax: 3.2 GHz2010

Celeron N4505

2 Cores2 Thrd10 WWMax: 2.9 GHz2021

Performance Spectrum - CPU

Core i7-840QM

4 / 8

2,025

0.0%

2,037

+0.6%

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. The Core i7-840QM is positioned at rank #812 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Core i7-840QM

#799

Atom x5-Z8300

MSRP: $20|Avg: N/A

1232%

#800

Atom Z3735G

MSRP: $17|Avg: N/A

1214%

#801

Core i5-480M

MSRP: $81|Avg: $77

1114%

#802

Core i5-460M

MSRP: $80|Avg: $129

1109%

#803

Core i5-2540M

MSRP: $266|Avg: $10

1099%

#805

Core i5-450M

MSRP: $32|Avg: $31

1061%

#806

Core i3-380M

MSRP: $49|Avg: $25

1018%

#807

Core i5-430M

MSRP: N/A|Avg: $33

1016%

#808

Core 2 Duo T6600

MSRP: N/A|Avg: $4

989%

#811

Athlon II Neo K345

MSRP: $50|Avg: $10

100%

#812

Core i7-840QM

MSRP: N/A|Avg: N/A

100%

#817

Core i7-8709G

MSRP: $338|Avg: $150

99%

#818

Celeron M 560

MSRP: $86|Avg: $10

98%

#823

Celeron Dual-Core T3000

MSRP: $80|Avg: $15

94%

#824

Pentium P6100

MSRP: $100|Avg: $16.39

94%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar

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	Core i7-840QM	Celeron N4505
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Clarksfield (2009−2010) / 45 nm)	✨ Modern (Jasper Lake (2021) / 10 nm)

💎 Value Proposition

The Core i7-840QM (2010) relies on 45 nm technology and DDR3, placing it in a different performance category relative to modern standards.

Insight	Core i7-840QM	Celeron N4505
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.

Core i7-840QM Benchmark Check

Celeron N4505 Benchmark Check

Technical Specifications

Side-by-side comparison of Core i7-840QM and Celeron N4505

Core i7-840QM

The Core i7-840QM is manufactured by Intel. It was released in 20 June 2010 (15 years ago). It is based on the Clarksfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 1.86 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: PGA988. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 2,025 points. Launch price was $568.

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.

⚡

Processing Power

The Core i7-840QM packs 4 cores / 8 threads, while the Celeron N4505 offers 2 cores / 2 threads — the Core i7-840QM has 2 more cores. Boost clocks reach 3.2 GHz on the Core i7-840QM versus 2.9 GHz on the Celeron N4505 — a 9.8% clock advantage for the Core i7-840QM (base: 1.86 GHz vs 2 GHz). The Core i7-840QM uses the Clarksfield (2009−2010) architecture (45 nm), while the Celeron N4505 uses Jasper Lake (2021) (10 nm). In PassMark, the Core i7-840QM scores 2,025 against the Celeron N4505's 2,037 — a 0.6% lead for the Celeron N4505. L3 cache: 8 MB (total) on the Core i7-840QM vs 4 MB (total) on the Celeron N4505.

Feature	Core i7-840QM	Celeron N4505
Cores / Threads	4 / 8+100%	2 / 2
Boost Clock	3.2 GHz+10%	2.9 GHz
Base Clock	1.86 GHz	2 GHz+8%
L3 Cache	8 MB (total)+100%	4 MB (total)
L2 Cache	256 kB (per core)	1.5 MB (total)+500%
Process	45 nm	10 nm-78%
Architecture	Clarksfield (2009−2010)	Jasper Lake (2021)
PassMark	2,025	2,037
Geekbench 6 Single	390	—
Geekbench 6 Multi	1,050	—

🧠

Memory & Platform

The Core i7-840QM uses the PGA988 socket (PCIe 2.0), while the Celeron N4505 uses BGA1338 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i7-840QM	Celeron N4505
Socket	PGA988	BGA1338
PCIe Generation	PCIe 2.0	PCIe 4.0+100%
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	8 GB	—
RAM Channels	2	—
ECC Support	❌	—
PCIe Lanes	16	—