Core i7-13700K vs Pentium 3805U

The Core i7-13700K packs 16 cores / 24 threads, while the Pentium 3805U offers 2 cores / 2 threads — the Core i7-13700K has 14 more cores. Boost clocks reach 5.4 GHz on the Core i7-13700K versus 1.9 GHz on the Pentium 3805U — a 95.9% clock advantage for the Core i7-13700K (base: 3.4 GHz vs 1.9 GHz). The Core i7-13700K uses the Raptor Lake, Raptor Cove, Gracemont (2022) architecture (Intel 7 nm), while the Pentium 3805U uses Broadwell-U (2015) (14 nm). In PassMark, the Core i7-13700K scores 45,784 against the Pentium 3805U's 1,196 — a 189.8% lead for the Core i7-13700K. L3 cache: 30 MB (total) on the Core i7-13700K vs 2 MB (total) on the Pentium 3805U.

The Core i7-13700K uses the LGA1700 socket (PCIe 5.0), while the Pentium 3805U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i7-13700K versus DDR3L-1600 on the Pentium 3805U — the Core i7-13700K supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-13700K supports up to 192 GB of RAM compared to 16 GB — 169.2% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i7-13700K) vs 12 (Pentium 3805U) — the Core i7-13700K offers 8 more lanes for additional GPUs or NVMe drives.

Only the Core i7-13700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: true (Core i7-13700K) vs VT-x, VT-d (Pentium 3805U). Both include integrated graphics — Intel UHD Graphics 770 (Core i7-13700K) and HD Graphics (Broadwell) (Pentium 3805U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Pentium 3805U targets Mobile. Direct competitor: Core i7-13700K rivals Ryzen 9 7900X.