Core i3-7350K vs Core i5-10400F

The Core i3-7350K packs 2 cores / 4 threads, while the Core i5-10400F offers 6 cores / 12 threads — the Core i5-10400F has 4 more cores. Boost clocks reach 4.2 GHz on the Core i3-7350K versus 4.3 GHz on the Core i5-10400F — a 2.4% clock advantage for the Core i5-10400F (base: 4.2 GHz vs 2.9 GHz). The Core i3-7350K uses the Kaby Lake (2016−2019) architecture (14 nm), while the Core i5-10400F uses Comet Lake (2020−2025) (14 nm). In PassMark, the Core i3-7350K scores 4,886 against the Core i5-10400F's 13,029 — a 90.9% lead for the Core i5-10400F. Cinebench R23 multi-core: 3,100 vs 8,191 (90.2% advantage for the Core i5-10400F). Geekbench 6 single-core — the metric most relevant to gaming — records 1,298 vs 1,454, a 11.3% lead for the Core i5-10400F that directly translates to higher frame rates. Multi-core Geekbench: 2,740 vs 5,783 (71.4% advantage for the Core i5-10400F). L3 cache: 4 MB (total) on the Core i3-7350K vs 12 MB (total) on the Core i5-10400F.

The Core i3-7350K uses the LGA1151 socket (PCIe 3.0), while the Core i5-10400F uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Core i3-7350K versus DDR4-2666 on the Core i5-10400F — the Core i5-10400F supports 11.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-10400F 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 16 PCIe lanes. Chipset compatibility: Intel Z270,Intel Z170,Intel H270,Intel B250,Intel Q270,Intel Q250 (Core i3-7350K) and H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F).

Virtualization support: true (Core i3-7350K) vs VT-x, VT-d (Core i5-10400F). The Core i3-7350K includes integrated graphics (Intel HD Graphics 630), while the Core i5-10400F requires a dedicated GPU. Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

At launch, the Core i3-7350K was priced at $179, while the Core i5-10400F came in at $160. On launch pricing ($179 vs $160), Core i5-10400F was $19 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-7350K delivers 27.3 pts/$ vs 81.4 pts/$ for the Core i5-10400F — making the Core i5-10400F the 99.6% better value option.

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