Atom N435 vs Mobile Sempron SI-42

Atom N435

1 Cores2 Thrd512 WWMax: 1.33 GHz2011

Mobile Sempron SI-42

1 Cores1 Thrd512 WWMax: 2.1 GHz2009

Performance Spectrum - CPU

Atom N435

1 / 2

335

+0.9%

332

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen Threadripper 7970X

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 N435 is positioned at rank 646 and the Mobile Sempron SI-42 is on rank 1175, so the Atom N435 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 N435

#634

Atom x5-Z8300

MSRP: $20|Avg: N/A

876%

#635

Atom Z3735G

MSRP: $17|Avg: N/A

863%

#636

Core i5-480M

MSRP: $81|Avg: $77

792%

#637

Core i5-460M

MSRP: $80|Avg: $129

789%

#638

Core i5-2540M

MSRP: $266|Avg: $10

781%

#640

Core i5-450M

MSRP: $32|Avg: $31

755%

#641

Core i3-380M

MSRP: $49|Avg: $25

724%

#642

Core i5-430M

MSRP: N/A|Avg: $33

722%

#643

Core 2 Duo T6600

MSRP: N/A|Avg: $4

703%

#646

Atom N435

MSRP: N/A|Avg: N/A

100%

#650

Core i5-1345UE

MSRP: $312|Avg: $312

99%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Mobile Sempron SI-42

#1163

Atom x5-Z8300

MSRP: $20|Avg: N/A

4419%

#1164

Atom Z3735G

MSRP: $17|Avg: N/A

4354%

#1165

Core i5-480M

MSRP: $81|Avg: $77

3997%

#1166

Core i5-460M

MSRP: $80|Avg: $129

3979%

#1167

Core i5-2540M

MSRP: $266|Avg: $10

3942%

#1169

Core i5-450M

MSRP: $32|Avg: $31

3807%

#1170

Core i3-380M

MSRP: $49|Avg: $25

3651%

#1171

Core i5-430M

MSRP: N/A|Avg: $33

3645%

#1172

Core 2 Duo T6600

MSRP: N/A|Avg: $4

3547%

#1175

Mobile Sempron SI-42

MSRP: N/A|Avg: N/A

100%

#1176

Core i7-2637M

MSRP: $289|Avg: N/A

98%

#1177

Athlon PRO 3045B

MSRP: $426|Avg: $180

98%

#1178

Core 2 Duo SL9600

MSRP: $316|Avg: N/A

98%

#1179

Core 2 Duo T5600

MSRP: $241|Avg: N/A

97%

#1180

Pentium N3510

MSRP: $161|Avg: $161

97%

#1181

Core i7-7Y75

MSRP: $393|Avg: $285

97%

#1183

Core i7-4500U

MSRP: $398|Avg: N/A

94%

#1185

Athlon Neo X2 L325

MSRP: $100|Avg: $5

93%

#1186

Core i3-2370M

MSRP: $225|Avg: N/A

92%

#1187

Core i3-3217UE

MSRP: $225|Avg: $35

91%

#1188

Celeron T3000

MSRP: $150|Avg: $54

91%

#1189

Core m7-6Y75

MSRP: $393|Avg: $393

91%

#1190

Core M-5Y10

MSRP: $281|Avg: $20

88%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Mobile Sempron SI-42 leads in gaming performance. However, the Atom N435 is the stronger candidate for professional workloads, offering 0.9% greater multi-core processing power.

Insight	Atom N435	Mobile Sempron SI-42
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Pinetrail (2009−2011) / 45 nm)	🛑 Legacy (Sable (2008−2009) / 65 nm)

💎 Value Proposition

Insight	Atom N435	Mobile Sempron SI-42
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 N435 Benchmark Check

Mobile Sempron SI-42 Benchmark Check

Technical Specifications

Side-by-side comparison of Atom N435 and Mobile Sempron SI-42

Atom N435

The Atom N435 is manufactured by Intel. It was released in 2 June 2011 (14 years ago). It is based on the Pinetrail (2009−2011) architecture. It features 1 cores and 2 threads. Max frequency: 1.33 GHz. L2 cache: 512 kB. Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 512 kB. Memory support: DDR2, DDR3. Passmark benchmark score: 335 points. Launch price was $69.

Mobile Sempron SI-42

The Mobile Sempron SI-42 is manufactured by AMD. It was released in 1 September 2009 (16 years ago). It is based on the Sable (2008−2009) architecture. It features 1 cores and 1 threads. Max frequency: 2.1 GHz. L2 cache: 512 kB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 512 kB. Passmark benchmark score: 332 points. Launch price was $69.

⚡

Processing Power

The Atom N435 packs 1 cores / 2 threads, matching the Mobile Sempron SI-42's 1 cores. Boost clocks reach 1.33 GHz on the Atom N435 versus 2.1 GHz on the Mobile Sempron SI-42 — a 44.9% clock advantage for the Mobile Sempron SI-42. The Atom N435 uses the Pinetrail (2009−2011) architecture (45 nm), while the Mobile Sempron SI-42 uses Sable (2008−2009) (65 nm). In PassMark, the Atom N435 scores 335 against the Mobile Sempron SI-42's 332 — a 0.9% lead for the Atom N435.

Feature	Atom N435	Mobile Sempron SI-42
Cores / Threads	1 / 2	1 / 1
Boost Clock	1.33 GHz	2.1 GHz+58%
L2 Cache	512 kB	512 kB
Process	45 nm-31%	65 nm
Architecture	Pinetrail (2009−2011)	Sable (2008−2009)
PassMark	335	332

🧠

Memory & Platform

The Atom N435 uses the FCBGA559 socket (PCIe 2.0), while the Mobile Sempron SI-42 uses S1g2 (PCIe 2.0) — making them incompatible on the same motherboard.