Core i7-1250U vs Core i3-11100B

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

Maximum memory speed reaches DDR5-5200 on the Core i7-1250U versus DDR4-3200 on the Core i3-11100B — 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: SoC (Core i7-1250U) and H470,Z490,H510,B560,H570,Z590 (Core i3-11100B).

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 — Intel Iris Xe Graphics (96EU) (Core i7-1250U) and UHD Graphics for 11th Gen (16 EU) (Core i3-11100B) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-1250U targets Thin and Light Laptop, Core i3-11100B targets Desktop. Direct competitor: Core i3-11100B rivals Ryzen 3 5300G.