Core i7-11700B vs Core i5-13400F

The Core i7-11700B packs 8 cores / 16 threads, while the Core i5-13400F offers 10 cores / 16 threads — the Core i5-13400F has 2 more cores. Boost clocks reach 4.8 GHz on the Core i7-11700B versus 4.6 GHz on the Core i5-13400F — a 4.3% clock advantage for the Core i7-11700B (base: 3.2 GHz vs 2.5 GHz). The Core i7-11700B uses the Tiger Lake-H (2021) architecture (10 nm SuperFin), while the Core i5-13400F uses Raptor Lake-S (2023−2024) (Intel 7 nm). In PassMark, the Core i7-11700B scores 21,581 against the Core i5-13400F's 25,029 — a 14.8% lead for the Core i5-13400F. Cinebench R23 multi-core: 10,287 vs 16,211 (44.7% advantage for the Core i5-13400F). Geekbench 6 single-core — the metric most relevant to gaming — records 2,265 vs 2,407, a 6.1% lead for the Core i5-13400F that directly translates to higher frame rates. Multi-core Geekbench: 10,050 vs 11,408 (12.7% advantage for the Core i5-13400F). L3 cache: 24 MB (total) on the Core i7-11700B vs 20 MB (total) on the Core i5-13400F.

The Core i7-11700B uses the FCBGA1787 socket (PCIe 4.0), while the Core i5-13400F uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i7-11700B versus DDR5-4800, DDR4-3200 on the Core i5-13400F — the Core i5-13400F supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-13400F supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: HM570,QM580,WM590 (Core i7-11700B) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-13400F).

Neither processor supports overclocking. Only the Core i7-11700B supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. The Core i7-11700B includes integrated graphics (Intel UHD Graphics 750), while the Core i5-13400F requires a dedicated GPU. Primary use case: Core i7-11700B targets Desktop, Core i5-13400F targets Gaming. Direct competitor: Core i5-13400F rivals Ryzen 5 7600.

The Core i7-11700B launched at $323 MSRP, while the Core i5-13400F debuted at $196. At current prices ($311 vs $180), the Core i5-13400F is $131 cheaper. In terms of value (PassMark points per dollar), the Core i7-11700B delivers 69.4 pts/$ vs 139.1 pts/$ for the Core i5-13400F — making the Core i5-13400F the 66.8% better value option.