Core i7-1260P vs Core i5-11400

The Core i7-1260P packs 12 cores / 16 threads, while the Core i5-11400 offers 6 cores / 12 threads — the Core i7-1260P has 6 more cores. Boost clocks reach 4.7 GHz on the Core i7-1260P versus 4.4 GHz on the Core i5-11400 — a 6.6% clock advantage for the Core i7-1260P (base: 2.1 GHz vs 2.6 GHz). The Core i7-1260P uses the Alder Lake-P (2022) architecture (Intel 7 nm), while the Core i5-11400 uses Rocket Lake (2021) (14 nm). In PassMark, the Core i7-1260P scores 16,592 against the Core i5-11400's 16,670 — a 0.5% lead for the Core i5-11400. Geekbench 6 single-core — the metric most relevant to gaming — records 2,424 vs 1,960, a 21.2% lead for the Core i7-1260P that directly translates to higher frame rates. Multi-core Geekbench: 9,532 vs 7,260 (27.1% advantage for the Core i7-1260P). L3 cache: 18 MB (total) on the Core i7-1260P vs 12 MB (total) on the Core i5-11400.

The Core i7-1260P uses the FCBGA1744 socket (PCIe 5.0), while the Core i5-11400 uses LGA1200 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Core i7-1260P versus DDR4-3200 on the Core i5-11400 — the Core i7-1260P supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-11400 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: Adler Lake-P PCH (Core i7-1260P) and B560,Z590 (Core i5-11400).

Neither processor supports overclocking. Only the Core i5-11400 supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Both include integrated graphics — Intel Iris Xe Graphics 96EU (Core i7-1260P) and Intel UHD Graphics 730 (Core i5-11400) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-1260P targets High Performance Laptop, Core i5-11400 targets Mainstream Desktop. Direct competitor: Core i5-11400 rivals Ryzen 5 5600X.

The Core i7-1260P launched at $432 MSRP, while the Core i5-11400 debuted at $182. At current prices ($432 vs $141), the Core i5-11400 is $291 cheaper. In terms of value (PassMark points per dollar), the Core i7-1260P delivers 38.4 pts/$ vs 118.2 pts/$ for the Core i5-11400 — making the Core i5-11400 the 101.9% better value option.