Core i5-13600K vs Celeron 877

The Core i5-13600K packs 14 cores / 20 threads, while the Celeron 877 offers 2 cores / 2 threads — the Core i5-13600K has 12 more cores. Boost clocks reach 5.1 GHz on the Core i5-13600K versus 1.4 GHz on the Celeron 877 — a 113.8% clock advantage for the Core i5-13600K (base: 3.5 GHz vs 1.4 GHz). The Core i5-13600K uses the Raptor Lake, Raptor Cove, Gracemont (2022) architecture (Intel 7 nm), while the Celeron 877 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i5-13600K scores 37,655 against the Celeron 877's 805 — a 191.6% lead for the Core i5-13600K. L3 cache: 24 MB on the Core i5-13600K vs 2 MB (total) on the Celeron 877.

The Core i5-13600K uses the LGA1700 socket (PCIe 5.0), while the Celeron 877 uses BGA1023 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i5-13600K versus DDR3-1333 on the Celeron 877 — 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 16 GB — 169.2% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-13600K) vs 16 (Celeron 877) — the Core i5-13600K offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 600 series,Intel 700 series (Core i5-13600K) and HM65,HM67,HM75,HM76,HM77 (Celeron 877).

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 (Core i5-13600K) vs VT-x (Celeron 877). Both include integrated graphics — UHD Graphics 770 (Core i5-13600K) and HD Graphics (Sandy Bridge) (Celeron 877) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-13600K targets Desktop, Celeron 877 targets Budget. Direct competitor: Celeron 877 rivals Pentium 967.

The Core i5-13600K launched at $329 MSRP, while the Celeron 877 debuted at $86. At current prices ($319 vs $15), the Celeron 877 is $304 cheaper. In terms of value (PassMark points per dollar), the Core i5-13600K delivers 118.0 pts/$ vs 53.7 pts/$ for the Celeron 877 — making the Core i5-13600K the 75% better value option.