Core i9-13900K vs Core Ultra 7 265KF

The Core i9-13900K packs 24 cores / 32 threads, while the Core Ultra 7 265KF offers 20 cores / 20 threads — the Core i9-13900K has 4 more cores. Boost clocks reach 5.7 GHz on the Core i9-13900K versus 5.5 GHz on the Core Ultra 7 265KF — a 3.6% clock advantage for the Core i9-13900K (base: 3 GHz vs 3.9 GHz). The Core i9-13900K uses the Raptor Lake, Raptor Cove, Gracemont (2022) architecture (Intel 7 nm), while the Core Ultra 7 265KF uses Arrow Lake-S (2024−2025) (3 nm). In PassMark, the Core i9-13900K scores 58,373 against the Core Ultra 7 265KF's 58,690 — a 0.5% lead for the Core Ultra 7 265KF. Cinebench R23 multi-core: 40,000 vs 35,315 (12.4% advantage for the Core i9-13900K). Geekbench 6 single-core — the metric most relevant to gaming — records 2,985 vs 3,055, a 2.3% lead for the Core Ultra 7 265KF that directly translates to higher frame rates. Multi-core Geekbench: 19,967 vs 20,373 (2% advantage for the Core Ultra 7 265KF). L3 cache: 36 MB (total) on the Core i9-13900K vs 30 MB (total) on the Core Ultra 7 265KF.

The Core i9-13900K uses the LGA1700 socket (PCIe 5.0), while the Core Ultra 7 265KF uses LGA1851 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i9-13900K versus DDR5-6400 on the Core Ultra 7 265KF — the Core Ultra 7 265KF supports 14.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 192 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i9-13900K) vs 24 (Core Ultra 7 265KF) — the Core Ultra 7 265KF offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel Z790,Intel Z690 (Core i9-13900K) and Intel Z890 (Core Ultra 7 265KF).

Both processors feature an unlocked multiplier for overclocking. Both support true virtualization. The Core i9-13900K includes integrated graphics (Intel UHD Graphics 770), while the Core Ultra 7 265KF requires a dedicated GPU. Primary use case: Core i9-13900K targets Desktop. Direct competitor: Core Ultra 7 265KF rivals Ryzen 7 9700X.

At launch, the Core i9-13900K was priced at $599, while the Core Ultra 7 265KF came in at $379. On launch pricing ($599 vs $379), Core Ultra 7 265KF was $220 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-13900K delivers 97.5 pts/$ vs 154.9 pts/$ for the Core Ultra 7 265KF — making the Core Ultra 7 265KF the 45.5% better value option.

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