Atom Z550 vs Mobile Sempron 3300+

Atom Z550

1 Cores2 Thrd2.4 WWMax: 2 GHz2009

Mobile Sempron 3300+

1 Cores1 Thrd128 WWMax: 2 GHz2005

Performance Spectrum - CPU

Atom Z550

1 / 2

375

0.0%

376

+0.3%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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 Mobile Sempron 3300+ is on rank 1148, so the Atom Z550 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 Mobile Sempron 3300+

#1136

Atom x5-Z8300

MSRP: $20|Avg: N/A

3902%

#1137

Atom Z3735G

MSRP: $17|Avg: N/A

3844%

#1138

Core i5-480M

MSRP: $81|Avg: $77

3529%

#1139

Core i5-460M

MSRP: $80|Avg: $129

3513%

#1140

Core i5-2540M

MSRP: $266|Avg: $10

3481%

#1142

Core i5-450M

MSRP: $32|Avg: $31

3362%

#1143

Core i3-380M

MSRP: $49|Avg: $25

3223%

#1144

Core i5-430M

MSRP: N/A|Avg: $33

3218%

#1145

Core 2 Duo T6600

MSRP: N/A|Avg: $4

3132%

#1148

Mobile Sempron 3300+

MSRP: N/A|Avg: N/A

100%

#1149

Pentium N3540

MSRP: $161|Avg: $161

100%

#1150

Core i7-3555LE

MSRP: $300|Avg: $280

99%

#1151

Core i3-2377M

MSRP: $250|Avg: N/A

98%

#1152

Core 2 Duo E8435

MSRP: $150|Avg: $74

98%

#1153

Celeron M 723

MSRP: $161|Avg: $161

97%

#1154

Core i7-3517UE

MSRP: $330|Avg: $35

96%

#1155

Core M-5Y51

MSRP: $281|Avg: $281

96%

#1156

Pentium N3530

MSRP: $161|Avg: $20

96%

#1157

Core i3-330E

MSRP: $177|Avg: $89

95%

#1159

Core i7-2640M

MSRP: $346|Avg: N/A

94%

#1160

Core M-5Y71

MSRP: $281|Avg: $281

93%

#1162

Core i7-2620M

MSRP: $346|Avg: N/A

93%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Analysis: Based on specifications, the Mobile Sempron 3300+ shows stronger theoretical performance metrics.

Insight	Atom Z550	Mobile Sempron 3300+
Gaming	Balanced gaming performance	Balanced gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Silverthorne (2008−2010) / 45 nm)	🛑 Legacy (Roma (2005) / 90 nm)

💎 Value Proposition

Insight	Atom Z550	Mobile Sempron 3300+
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

Mobile Sempron 3300+ Benchmark Check

Technical Specifications

Side-by-side comparison of Atom Z550 and Mobile Sempron 3300+

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.

Mobile Sempron 3300+

The Mobile Sempron 3300+ is manufactured by AMD. It was released in 1 June 2005 (20 years ago). It is based on the Roma (2005) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 128 kB. Built on 90 nm process technology. Socket: 745. Thermal design power (TDP): 128 kB. Passmark benchmark score: 376 points. Launch price was $69.

⚡

Processing Power

The Atom Z550 packs 1 cores / 2 threads, matching the Mobile Sempron 3300+'s 1 cores. Boost clocks reach 2 GHz on the Atom Z550 versus 2 GHz on the Mobile Sempron 3300+ — identical boost frequencies. The Atom Z550 uses the Silverthorne (2008−2010) architecture (45 nm), while the Mobile Sempron 3300+ uses Roma (2005) (90 nm). In PassMark, the Atom Z550 scores 375 against the Mobile Sempron 3300+'s 376 — a 0.3% lead for the Mobile Sempron 3300+.

Feature	Atom Z550	Mobile Sempron 3300+
Cores / Threads	1 / 2	1 / 1
Boost Clock	2 GHz	2 GHz
Base Clock	2 GHz	—
L3 Cache	0 kB	—
L2 Cache	512 kB (per core)+300%	128 kB
Process	45 nm-50%	90 nm
Architecture	Silverthorne (2008−2010)	Roma (2005)
PassMark	375	376

🧠

Memory & Platform

The Atom Z550 uses the PBGA441 socket (PCIe 2.0), while the Mobile Sempron 3300+ uses 745 (PCIe 2.0) — making them incompatible on the same motherboard.