Celeron N3450 vs Core i7-620M

The Celeron N3450 packs 4 cores / 4 threads, while the Core i7-620M offers 2 cores / 4 threads — the Celeron N3450 has 2 more cores. Boost clocks reach 2.2 GHz on the Celeron N3450 versus 3.33 GHz on the Core i7-620M — a 40.9% clock advantage for the Core i7-620M (base: 1.1 GHz vs 2.66 GHz). The Celeron N3450 uses the Apollo Lake (2014−2016) architecture (14 nm), while the Core i7-620M uses Arrandale (2010−2011) (32 nm). In PassMark, the Celeron N3450 scores 1,981 against the Core i7-620M's 1,976 — a 0.3% lead for the Celeron N3450. L3 cache: 0 kB on the Celeron N3450 vs 4 MB (total) on the Core i7-620M.

The Celeron N3450 uses the FCBGA1296 socket (PCIe 3.0), while the Core i7-620M uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 2400 on the Celeron N3450 versus DDR3-1066 on the Core i7-620M — the Celeron N3450 supports 199.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 8 of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 6 (Celeron N3450) vs 16 (Core i7-620M) — the Core i7-620M offers 10 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FCBGA1296 (Celeron N3450) and HM55,QM57,HM57,QS57 (Core i7-620M).

Neither processor supports overclocking. Virtualization support: true (Celeron N3450) vs VT-x, VT-d (Core i7-620M). Both include integrated graphics — Intel HD Graphics 500 (Celeron N3450) and Intel HD Graphics (Core i7-620M) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-620M targets Performance Laptop. Direct competitor: Celeron N3450 rivals AMD A4-9120; Core i7-620M rivals Core 2 Duo T9600.