Core Ultra 7 155H vs Core i7-12700K

The Core Ultra 7 155H packs 16 cores / 22 threads, while the Core i7-12700K offers 12 cores / 20 threads — the Core Ultra 7 155H has 4 more cores. Boost clocks reach 4.8 GHz on the Core Ultra 7 155H versus 5 GHz on the Core i7-12700K — a 4.1% clock advantage for the Core i7-12700K (base: 3.8 GHz vs 3.6 GHz). The Core Ultra 7 155H uses the Meteor Lake-H (2023) architecture (7 nm), while the Core i7-12700K uses Alder Lake, Golden Cove, Gracemont (2021) (10 nm). In PassMark, the Core Ultra 7 155H scores 24,705 against the Core i7-12700K's 34,347 — a 32.7% lead for the Core i7-12700K. L3 cache: 24 MB (total) on the Core Ultra 7 155H vs 25 MB (total) on the Core i7-12700K.

The Core Ultra 7 155H uses the FCBGA2049 socket (PCIe 5.0), while the Core i7-12700K uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-7467, DDR5-5600 on the Core Ultra 7 155H versus 4800 on the Core i7-12700K — the Core i7-12700K supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-12700K supports up to 128 of RAM compared to 96 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Core Ultra 7 155H) vs 20 (Core i7-12700K) — the Core Ultra 7 155H offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Meteor Lake SoC (Core Ultra 7 155H) and Z690,B660 (Core i7-12700K).

Only the Core i7-12700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d, EPT (Core Ultra 7 155H) vs VT-x, VT-d (Core i7-12700K). Both include integrated graphics — Intel Arc Graphics (8 Xe-cores) (Core Ultra 7 155H) and Intel UHD Graphics 770 (Core i7-12700K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core Ultra 7 155H targets Thin-and-light Performance / AI. Direct competitor: Core Ultra 7 155H rivals Ryzen 7 8840HS; Core i7-12700K rivals Ryzen 7 5800X.