Atom Z550 vs Pentium M 1.40

Atom Z550

1 Cores2 Thrd2.4 WWMax: 2 GHz2009

Pentium M 1.40

1 Cores1 Thrd24 WWMax: 1.4 GHz2003

Performance Spectrum - CPU

Atom Z550

1 / 2

375

+8.7%

345

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 Atom Z550 is positioned at rank 592 and the Pentium M 1.40 is on rank 271, so the Pentium M 1.40 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 Atom Z550

#184

Core Ultra 7 266V

MSRP: $520|Avg: $520

99%

#580

Atom x5-Z8300

MSRP: $20|Avg: N/A

782%

#581

Atom Z3735G

MSRP: $17|Avg: N/A

771%

#582

Core i5-480M

MSRP: $81|Avg: $77

708%

#583

Core i5-460M

MSRP: $80|Avg: $129

705%

#584

Core i5-2540M

MSRP: $266|Avg: $10

698%

#586

Core i5-450M

MSRP: $32|Avg: $31

674%

#587

Core i3-380M

MSRP: $49|Avg: $25

646%

#588

Core i5-430M

MSRP: N/A|Avg: $33

645%

#589

Core 2 Duo T6600

MSRP: N/A|Avg: $4

628%

#592

Atom Z550

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Pentium M 1.40

#256

Atom x5-Z8300

MSRP: $20|Avg: N/A

425%

#257

Atom Z3735G

MSRP: $17|Avg: N/A

419%

#258

Core i5-480M

MSRP: $81|Avg: $77

385%

#259

Core i5-460M

MSRP: $80|Avg: $129

383%

#260

Core i5-2540M

MSRP: $266|Avg: $10

379%

#262

Core i5-450M

MSRP: $32|Avg: $31

366%

#263

Core i3-380M

MSRP: $49|Avg: $25

351%

#264

Core i5-430M

MSRP: N/A|Avg: $33

351%

#265

Core 2 Duo T6600

MSRP: N/A|Avg: $4

341%

#271

Pentium M 1.40

MSRP: N/A|Avg: N/A

100%

#274

Core 2 Extreme X9100

MSRP: $851|Avg: N/A

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 Atom Z550 (2009) utilizes 45 nm technology and unknown, providing a fundamental performance advantage.

Insight	Atom Z550	Pentium M 1.40
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Silverthorne (2008−2010) / 45 nm)	🛑 Legacy (Banias (2003) / 130 nm)

💎 Value Proposition

The Pentium M 1.40 (2003) relies on 130 nm technology and DDR1, DDR2, placing it in a different performance category relative to modern standards.

Insight	Atom Z550	Pentium M 1.40
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.

Atom Z550 Benchmark Check

Pentium M 1.40 Benchmark Check

Technical Specifications

Side-by-side comparison of Atom Z550 and Pentium M 1.40

Atom Z550

The Atom Z550 is manufactured by Intel. It was released in 8 April 2009 (16 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2.4 Watt. Memory support: unknown. Passmark benchmark score: 375 points. Launch price was $69.

Pentium M 1.40

The Pentium M 1.40 is manufactured by Intel. It was released in 2007-01-01. It is based on the Banias (2003) architecture. It features 1 cores and 1 threads. Max frequency: 1.4 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 24 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 345 points. Launch price was $69.

⚡

Processing Power

The Atom Z550 packs 1 cores / 2 threads, matching the Pentium M 1.40's 1 cores. Boost clocks reach 2 GHz on the Atom Z550 versus 1.4 GHz on the Pentium M 1.40 — a 35.3% clock advantage for the Atom Z550. The Atom Z550 uses the Silverthorne (2008−2010) architecture (45 nm), while the Pentium M 1.40 uses Banias (2003) (130 nm). In PassMark, the Atom Z550 scores 375 against the Pentium M 1.40's 345 — a 8.3% lead for the Atom Z550. Both processors carry 0 kB of L3 cache.

Feature	Atom Z550	Pentium M 1.40
Cores / Threads	1 / 2	1 / 1
Boost Clock	2 GHz+43%	1.4 GHz
Base Clock	2 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)	1 MB+100%
Process	45 nm-65%	130 nm
Architecture	Silverthorne (2008−2010)	Banias (2003)
PassMark	375+9%	345

🧠

Memory & Platform

The Atom Z550 uses the PBGA441 socket (PCIe 2.0), while the Pentium M 1.40 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.