Core i3-11100B vs Core Ultra 5 115U

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 Core i3-11100B is positioned at rank 223 and the Core Ultra 5 115U is on rank 779, so the Core i3-11100B 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 Core i3-11100B

#57

Ryzen AI 9 365

MSRP: $400|Avg: $400

100%

#211

Atom x5-Z8300

MSRP: $20|Avg: N/A

388%

#212

Atom Z3735G

MSRP: $17|Avg: N/A

382%

#213

Core i5-480M

MSRP: $81|Avg: $77

351%

#214

Core i5-460M

MSRP: $80|Avg: $129

349%

#215

Core i5-2540M

MSRP: $266|Avg: $10

346%

#217

Core i5-450M

MSRP: $32|Avg: $31

334%

#218

Core i3-380M

MSRP: $49|Avg: $25

320%

#219

Core i5-430M

MSRP: N/A|Avg: $33

320%

#220

Core 2 Duo T6600

MSRP: N/A|Avg: $4

311%

#223

Core i3-11100B

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core Ultra 5 115U

#767

Atom x5-Z8300

MSRP: $20|Avg: N/A

1146%

#768

Atom Z3735G

MSRP: $17|Avg: N/A

1129%

#769

Core i5-480M

MSRP: $81|Avg: $77

1037%

#770

Core i5-460M

MSRP: $80|Avg: $129

1032%

#771

Core i5-2540M

MSRP: $266|Avg: $10

1023%

#773

Core i5-450M

MSRP: $32|Avg: $31

988%

#774

Core i3-380M

MSRP: $49|Avg: $25

947%

#775

Core i5-430M

MSRP: N/A|Avg: $33

945%

#776

Core 2 Duo T6600

MSRP: N/A|Avg: $4

920%

#779

Core Ultra 5 115U

MSRP: N/A|Avg: N/A

100%

#790

Athlon 64 TF-20

MSRP: $50|Avg: $10

97%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Core i3-11100B leads in gaming performance. However, the Core Ultra 5 115U is the stronger candidate for professional workloads, offering 1.4% greater multi-core processing power.

Insight	Core i3-11100B	Core Ultra 5 115U
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Legacy / 10 nm SuperFin)	✨ Modern (Meteor Lake (2023) / 7 nm)

💎 Value Proposition

Insight	Core i3-11100B	Core Ultra 5 115U
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.

Core i3-11100B Benchmark Check

Core Ultra 5 115U Benchmark Check

Technical Specifications

Side-by-side comparison of Core i3-11100B and Core Ultra 5 115U

Core i3-11100B

The Core i3-11100B is manufactured by Intel. It was released in 1 April 2021 (4 years ago). It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB. Built on 10 nm SuperFin process technology. Thermal design power (TDP): 65 Watt. Memory support: Up to 3200 MT/s. Passmark benchmark score: 11,357 points. Launch price was $149.

Core Ultra 5 115U

The Core Ultra 5 115U is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake (2023) architecture. It features 8 cores and 10 threads. Base frequency is 1.5 GHz, with boost up to 4.2 GHz. L3 cache: 10 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 10 MB. Memory support: DDR5 Depends on motherboard. Passmark benchmark score: 11,518 points. Launch price was $149.

⚡

Processing Power

The Core i3-11100B packs 4 cores / 8 threads, while the Core Ultra 5 115U offers 8 cores / 10 threads — the Core Ultra 5 115U has 4 more cores. Boost clocks reach 4.4 GHz on the Core i3-11100B versus 4.2 GHz on the Core Ultra 5 115U — a 4.7% clock advantage for the Core i3-11100B (base: 3.6 GHz vs 1.5 GHz). The Core Ultra 5 115U is built on the Meteor Lake (2023) architecture. In PassMark, the Core i3-11100B scores 11,357 against the Core Ultra 5 115U's 11,518 — a 1.4% lead for the Core Ultra 5 115U. L3 cache: 12 MB on the Core i3-11100B vs 10 MB (total) on the Core Ultra 5 115U.

Feature	Core i3-11100B	Core Ultra 5 115U
Cores / Threads	4 / 8	8 / 10+100%
Boost Clock	4.4 GHz+5%	4.2 GHz
Base Clock	3.6 GHz+140%	1.5 GHz
L3 Cache	12 MB+20%	10 MB (total)
L2 Cache	—	2 MB (per core)
Process	10 nm SuperFin	7 nm-30%
Architecture	—	Meteor Lake (2023)
PassMark	11,357	11,518+1%
Geekbench 6 Single	1,402	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i3-11100B) / not specified (Core Ultra 5 115U). The Core i3-11100B includes integrated graphics (UHD Graphics for 11th Gen (16 EU)), while the Core Ultra 5 115U requires a dedicated GPU. Primary use case: Core i3-11100B targets Desktop. Direct competitor: Core i3-11100B rivals Ryzen 3 5300G.