Core i5-2400 vs Core i5-13600K

The Core i5-2400 packs 4 cores / 4 threads, while the Core i5-13600K offers 14 cores / 20 threads — the Core i5-13600K has 10 more cores. Boost clocks reach 3.4 GHz on the Core i5-2400 versus 5.1 GHz on the Core i5-13600K — a 40% clock advantage for the Core i5-13600K (base: 3.1 GHz vs 3.5 GHz). The Core i5-2400 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i5-13600K uses Raptor Lake, Raptor Cove, Gracemont (2022) (Intel 7 nm). In PassMark, the Core i5-2400 scores 3,870 against the Core i5-13600K's 37,655 — a 162.7% lead for the Core i5-13600K. L3 cache: 6144 kB (total) on the Core i5-2400 vs 24 MB on the Core i5-13600K.

The Core i5-2400 uses the LGA1155 socket (PCIe 2.0), while the Core i5-13600K uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Core i5-2400 versus DDR5-5600 on the Core i5-13600K — the Core i5-13600K supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-13600K supports up to 192 GB of RAM compared to 32 GB — 142.9% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-2400) vs 20 (Core i5-13600K) — the Core i5-13600K offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H61,H67,P67,Z68,B75,Z77 (Core i5-2400) and Intel 600 series,Intel 700 series (Core i5-13600K).

Only the Core i5-13600K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d, EPT (Core i5-2400) vs VT-x, VT-d (Core i5-13600K). Both include integrated graphics — HD Graphics 2000 (Core i5-2400) and UHD Graphics 770 (Core i5-13600K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-2400 targets Legacy Desktop, Core i5-13600K targets Desktop. Direct competitor: Core i5-2400 rivals Phenom II X4 975.

The Core i5-2400 launched at $184 MSRP, while the Core i5-13600K debuted at $329. At current prices ($25 vs $319), the Core i5-2400 is $294 cheaper. In terms of value (PassMark points per dollar), the Core i5-2400 delivers 154.8 pts/$ vs 118.0 pts/$ for the Core i5-13600K — making the Core i5-2400 the 26.9% better value option.