Core i3-11100B vs Core i7-1250U

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.

Core i3-11100B vs Core i7-1250U FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i3-11100B vs Core i7-1250U: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i3-11100B

2021

Why buy it

✅+0.5% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-1250U across 50 shared CPU benchmark tests.
❌584.2% higher power demand at 65W vs 9.5W.

Core i7-1250U

2022

Why buy it

✅Better for gaming: +14.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 10W instead of 65W, a 56W reduction.

Trade-offs

❌Lower PassMark (11,305 vs 11,357).
❌Launch MSRP is still $426 MSRP, while Core i3-11100B mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Core i7-1250U better than Core i3-11100B?

It depends on what you want from the system. For gaming, Core i7-1250U is ahead with a 14.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i3-11100B pulls ahead with 0.5% better PassMark.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i3-11100B is the stronger fit. You are getting 0.5% better PassMark, backed by 4 cores and 8 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Core i7-1250U is the better buy right now. Core i7-1250U comes in at an unclear MSRP at $426 MSRP versus unclear MSRP, and it still gives you a 14.8% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core i3-11100B is still stronger for heavier multi-core work with 0.5% better PassMark. It is also 100.0% better value on MSRP (26.5 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Core i7-1250U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2021) and a healthier platform with FCBGA1781 and DDR5 instead of the older platform. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i3-11100B vs Core i7-1250U Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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 i7-1250U

The Core i7-1250U is manufactured by Intel. It was released in 23 February 2022 (3 years ago). It is based on the Alder Lake-U (2022) architecture. It features 10 cores and 12 threads. Base frequency is 1.1 GHz, with boost up to 4.7 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1781. Thermal design power (TDP): 9.5 MB + 12 MB. Memory support: DDR4, DDR5. Passmark benchmark score: 11,305 points. Launch price was $149.

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Processing Power

The Core i3-11100B packs 4 cores / 8 threads, while the Core i7-1250U offers 10 cores / 12 threads — the Core i7-1250U has 6 more cores. Boost clocks reach 4.4 GHz on the Core i3-11100B versus 4.7 GHz on the Core i7-1250U — a 6.6% clock advantage for the Core i7-1250U (base: 3.6 GHz vs 1.1 GHz). The Core i7-1250U is built on the Alder Lake-U (2022) architecture. In PassMark, the Core i3-11100B scores 11,357 against the Core i7-1250U's 11,305 — a 0.5% lead for the Core i3-11100B. Geekbench 6 single-core — the metric most relevant to gaming — records 1,402 vs 1,600, a 13.2% lead for the Core i7-1250U that directly translates to higher frame rates. L3 cache: 12 MB on the Core i3-11100B vs 12 MB (total) on the Core i7-1250U.

Feature	Core i3-11100B	Core i7-1250U
Cores / Threads	4 / 8	10 / 12+150%
Boost Clock	4.4 GHz	4.7 GHz+7%
Base Clock	3.6 GHz+227%	1.1 GHz
L3 Cache	12 MB	12 MB (total)
L2 Cache	—	1.25 MB (per core)
Process	10 nm SuperFin	Intel 7 nm-30%
Architecture	—	Alder Lake-U (2022)
PassMark	11,357	11,305
Cinebench R23 Multi	—	6,788
Geekbench 6 Single	1,402	1,600+14%
Geekbench 6 Multi	—	6,500

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Memory & Platform

Maximum memory speed reaches DDR4-3200 on the Core i3-11100B versus DDR5-5200 on the Core i7-1250U — the Core i7-1250U supports 62.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i3-11100B supports up to 128 GB of RAM compared to 64 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: H470,Z490,H510,B560,H570,Z590 (Core i3-11100B) and SoC (Core i7-1250U).

Feature	Core i3-11100B	Core i7-1250U
Socket	—	FCBGA1781
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	DDR5-5200+63%
Max RAM Capacity	128 GB+100%	64 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20	20

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Advanced Features

Neither processor supports overclocking. Only the Core i3-11100B supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d, EPT virtualization. Both include integrated graphics — UHD Graphics for 11th Gen (16 EU) (Core i3-11100B) and Intel Iris Xe Graphics (96EU) (Core i7-1250U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-11100B targets Desktop, Core i7-1250U targets Thin and Light Laptop. Direct competitor: Core i3-11100B rivals Ryzen 3 5300G.

Feature	Core i3-11100B	Core i7-1250U
Integrated GPU	Yes	Yes
IGPU Model	UHD Graphics for 11th Gen (16 EU)	Intel Iris Xe Graphics (96EU)
Unlocked	No	No
AVX-512	Yes	No
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d, EPT
Target Use	Desktop	Thin and Light Laptop