Core i3-11100B vs Core i7-1250U

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.

Maximum memory speed reaches DDR4-3200 on the Core i3-11100B versus DDR5-5200 on the Core i7-1250U — the Core i7-1250U supports 22.2% 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 — 66.7% 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).

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.