Atom Z520 vs Atom Z515

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 Z520 is positioned at rank 523 and the Atom Z515 is on rank 894, so the Atom Z520 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 Z520

#167

Core Ultra 7 258V

MSRP: $450|Avg: $400

98%

#511

Atom x5-Z8300

MSRP: $20|Avg: N/A

682%

#512

Atom Z3735G

MSRP: $17|Avg: N/A

672%

#513

Core i5-480M

MSRP: $81|Avg: $77

617%

#514

Core i5-460M

MSRP: $80|Avg: $129

614%

#515

Core i5-2540M

MSRP: $266|Avg: $10

609%

#517

Core i5-450M

MSRP: $32|Avg: $31

588%

#518

Core i3-380M

MSRP: $49|Avg: $25

564%

#519

Core i5-430M

MSRP: N/A|Avg: $33

563%

#520

Core 2 Duo T6600

MSRP: N/A|Avg: $4

548%

#523

Atom Z520

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Atom Z515

#882

Atom x5-Z8300

MSRP: $20|Avg: N/A

1505%

#883

Atom Z3735G

MSRP: $17|Avg: N/A

1483%

#884

Core i5-480M

MSRP: $81|Avg: $77

1361%

#885

Core i5-460M

MSRP: $80|Avg: $129

1355%

#886

Core i5-2540M

MSRP: $266|Avg: $10

1342%

#888

Core i5-450M

MSRP: $32|Avg: $31

1296%

#889

Core i3-380M

MSRP: $49|Avg: $25

1243%

#890

Core i5-430M

MSRP: N/A|Avg: $33

1241%

#891

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1208%

#894

Atom Z515

MSRP: N/A|Avg: N/A

100%

#895

Pentium B940

MSRP: $134|Avg: $11

100%

#896

Core i5-8305G

MSRP: $350|Avg: $350

100%

#897

Celeron 6305

MSRP: $107|Avg: $80

100%

#900

Core i7-8705G

MSRP: $400|Avg: $400

98%

#902

Pentium Dual Core T2410

MSRP: $100|Avg: $100

97%

#903

FX-8800P

MSRP: $150|Avg: $45

97%

#904

Core i7-8809G

MSRP: $450|Avg: $450

96%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Atom Z515 leads in gaming performance. However, the Atom Z520 is the stronger candidate for professional workloads, offering 9.8% greater multi-core processing power.

Insight	Atom Z520	Atom Z515
Gaming	❌ Lower gaming performance	✅ Superior 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 (Silverthorne (2008−2010) / 45 nm)

💎 Value Proposition

Insight	Atom Z520	Atom Z515
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 Z520 Benchmark Check

Atom Z515 Benchmark Check

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Technical Specifications

Side-by-side comparison of Atom Z520 and Atom Z515

Atom Z520

The Atom Z520 is manufactured by Intel. It was released in 2 April 2008 (17 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 2 threads. Base frequency is 1.33 GHz, with boost up to 0.03 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2 Watt. Passmark benchmark score: 215 points. Launch price was $65.

Atom Z515

The Atom Z515 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 1 threads. Base frequency is 1.2 GHz, with boost up to 1.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 1.4 Watt. Memory support: unknown. Passmark benchmark score: 195 points. Launch price was $69.

⚡

Processing Power

The Atom Z520 packs 1 cores / 2 threads, matching the Atom Z515's 1 cores. Boost clocks reach 0.03 GHz on the Atom Z520 versus 1.2 GHz on the Atom Z515 — a 190.2% clock advantage for the Atom Z515 (base: 1.33 GHz vs 1.2 GHz). Both are built on the Silverthorne (2008−2010) architecture using a 45 nm process. In PassMark, the Atom Z520 scores 215 against the Atom Z515's 195 — a 9.8% lead for the Atom Z520. Both processors carry 0 kB of L3 cache.

Feature	Atom Z520	Atom Z515
Cores / Threads	1 / 2	1 / 1
Boost Clock	0.03 GHz	1.2 GHz+3900%
Base Clock	1.33 GHz+11%	1.2 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB	512 kB (per core)
Process	45 nm	45 nm
Architecture	Silverthorne (2008−2010)	Silverthorne (2008−2010)
PassMark	215+10%	195

🧠

Memory & Platform

Both processors use the PBGA441 socket with PCIe 2.0. Both support up to DDR2-533 memory speed. Both support up to 2 GB of RAM. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: Intel US15W (Atom Z520) and Intel US15W (Atom Z515).