Mobile Pentium 4 2.66 vs Celeron 540

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 Mobile Pentium 4 2.66 is positioned at rank 771 and the Celeron 540 is on rank 1212, so the Mobile Pentium 4 2.66 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 Mobile Pentium 4 2.66

#759

Atom x5-Z8300

MSRP: $20|Avg: N/A

1114%

#760

Atom Z3735G

MSRP: $17|Avg: N/A

1098%

#761

Core i5-480M

MSRP: $81|Avg: $77

1008%

#762

Core i5-460M

MSRP: $80|Avg: $129

1003%

#763

Core i5-2540M

MSRP: $266|Avg: $10

994%

#765

Core i5-450M

MSRP: $32|Avg: $31

960%

#766

Core i3-380M

MSRP: $49|Avg: $25

921%

#767

Core i5-430M

MSRP: N/A|Avg: $33

919%

#768

Core 2 Duo T6600

MSRP: N/A|Avg: $4

894%

#771

Mobile Pentium 4 2.66

MSRP: N/A|Avg: N/A

100%

#772

Core i7-9750HF

MSRP: $395|Avg: $395

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Celeron 540

#1200

Atom x5-Z8300

MSRP: $20|Avg: N/A

6190%

#1201

Atom Z3735G

MSRP: $17|Avg: N/A

6099%

#1202

Core i5-480M

MSRP: $81|Avg: $77

5599%

#1203

Core i5-460M

MSRP: $80|Avg: $129

5574%

#1204

Core i5-2540M

MSRP: $266|Avg: $10

5523%

#1206

Core i5-450M

MSRP: $32|Avg: $31

5333%

#1207

Core i3-380M

MSRP: $49|Avg: $25

5114%

#1208

Core i5-430M

MSRP: N/A|Avg: $33

5105%

#1209

Core 2 Duo T6600

MSRP: N/A|Avg: $4

4968%

#1212

Celeron 540

MSRP: $86|Avg: $5

100%

#1213

Celeron U3600

MSRP: $134|Avg: $134

98%

#1216

Core 2 Quad Q9000

MSRP: $348|Avg: $15

97%

#1217

Core i5-2537M

MSRP: $250|Avg: N/A

97%

#1218

Core i7-720QM

MSRP: $364|Avg: N/A

96%

#1219

Pentium U5400

MSRP: $289|Avg: $214

94%

#1220

Pentium T2330

MSRP: $150|Avg: $7

93%

#1221

Z-01

MSRP: $50|Avg: $10

91%

#1222

Pentium T2310

MSRP: $150|Avg: $14

88%

#1223

Celeron SU2300

MSRP: $134|Avg: $134

86%

#1224

Core i5-560UM

MSRP: $250|Avg: N/A

86%

#1225

Core i7-660UM

MSRP: $317|Avg: N/A

85%

#1226

C-30

MSRP: $50|Avg: $15

85%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Mobile Pentium 4 2.66 leads in gaming performance. However, the Celeron 540 is the stronger candidate for professional workloads, offering 3.2% greater multi-core processing power.

Insight	Mobile Pentium 4 2.66	Celeron 540
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	✅ More affordable ($0)	⚠️ Higher cost ($5)
Longevity	🛑 Legacy (Northwood (2002−2004) / 130 nm)	🛑 Legacy (Legacy / 65 nm)

💎 Value Proposition

Insight	Mobile Pentium 4 2.66	Celeron 540
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($0)	⚠️ Higher cost ($5)

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.

Mobile Pentium 4 2.66 Benchmark Check

Celeron 540 Benchmark Check

Technical Specifications

Side-by-side comparison of Mobile Pentium 4 2.66 and Celeron 540

Mobile Pentium 4 2.66

The Mobile Pentium 4 2.66 is manufactured by Intel. It was released in Junho 2003 (22 years ago). It is based on the Northwood (2002−2004) architecture. It features 1 cores and 2 threads. Max frequency: 2.67 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 66 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 395 points. Launch price was $69.

Celeron 540

The Celeron 540 is manufactured by Intel. It was released in 2007-01-01. Base frequency: 1.86 GHz. L3 cache: 1 MB L2 Cache. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 30 Watt. Passmark benchmark score: 408 points. Launch price was $69.

⚡

Processing Power

The Mobile Pentium 4 2.66 is built on the Northwood (2002−2004) architecture. In PassMark, the Mobile Pentium 4 2.66 scores 395 against the Celeron 540's 408 — a 3.2% lead for the Celeron 540. L3 cache: 0 kB on the Mobile Pentium 4 2.66 vs 1 MB L2 Cache on the Celeron 540.

Feature	Mobile Pentium 4 2.66	Celeron 540
Cores / Threads	1 / 2	—
Boost Clock	2.67 GHz	—
Base Clock	—	1.86 GHz
L3 Cache	0 kB	1 MB L2 Cache
L2 Cache	512 kB	—
Process	130 nm	65 nm-50%
Architecture	Northwood (2002−2004)	—
PassMark	395	408+3%
Geekbench 6 Single	800	—
Geekbench 6 Multi	800	—

🧠

Memory & Platform

Both processors use the PGA478 socket with PCIe 1.1. Both support up to DDR2 memory speed. Both support up to 4 GB of RAM. Memory channels: 1 (Mobile Pentium 4 2.66) vs 2 (Celeron 540). Both provide 0 PCIe lanes. Chipset compatibility: 852PM,855PM (Mobile Pentium 4 2.66) and Santa Rosa (Celeron 540).

Feature	Mobile Pentium 4 2.66	Celeron 540
Socket	PGA478	PGA478
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR2	DDR2-667
Max RAM Capacity	4 GB	4 GB
RAM Channels	1	2+100%
ECC Support	❌	❌
PCIe Lanes	0	0

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: None (Mobile Pentium 4 2.66) vs No (Celeron 540). Primary use case: Mobile Pentium 4 2.66 targets Legacy Laptop, Celeron 540 targets Budget. Direct competitor: Celeron 540 rivals Pentium T2310.