Core i5-12400F vs Celeron G555

The Core i5-12400F packs 6 cores / 12 threads, while the Celeron G555 offers 2 cores / 2 threads — the Core i5-12400F has 4 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 2.7 GHz on the Celeron G555 — a 47.9% clock advantage for the Core i5-12400F (base: 2.5 GHz vs 2.7 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Celeron G555 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i5-12400F scores 19,532 against the Celeron G555's 1,427 — a 172.8% lead for the Core i5-12400F. Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 398, a 124.1% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 742 (12.2% advantage for the Celeron G555). L3 cache: 18 MB (total) on the Core i5-12400F vs 2 MB (total) on the Celeron G555.

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Celeron G555 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus DDR3-1333 on the Celeron G555 — the Core i5-12400F supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-12400F supports up to 128 GB of RAM compared to 32 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-12400F) vs 16 (Celeron G555) — the Core i5-12400F offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and H61,H67,P67,Z68,B75,Z77 (Celeron G555).

Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs VT-x (Celeron G555). The Celeron G555 includes integrated graphics (Intel HD Graphics (Sandy Bridge)), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value, Celeron G555 targets Desktop. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Celeron G555 rivals Pentium G630.

The Core i5-12400F launched at $174 MSRP, while the Celeron G555 debuted at $52. At current prices ($110 vs $15), the Celeron G555 is $95 cheaper. In terms of value (PassMark points per dollar), the Core i5-12400F delivers 177.6 pts/$ vs 95.1 pts/$ for the Celeron G555 — making the Core i5-12400F the 60.5% better value option.