Core i7-620UM vs Celeron 2980U

The Core i7-620UM packs 2 cores / 4 threads, matching the Celeron 2980U's 2 cores. Boost clocks reach 2.13 GHz on the Core i7-620UM versus 1.6 GHz on the Celeron 2980U — a 28.4% clock advantage for the Core i7-620UM (base: 1.06 GHz vs 1.6 GHz). The Core i7-620UM uses the Arrandale (2010−2011) architecture (32 nm), while the Celeron 2980U uses Haswell (2013−2015) (22 nm). In PassMark, the Core i7-620UM scores 1,091 against the Celeron 2980U's 1,092 — a 0.1% lead for the Celeron 2980U. Geekbench 6 single-core — the metric most relevant to gaming — records 350 vs 354, a 1.1% lead for the Celeron 2980U that directly translates to higher frame rates. Multi-core Geekbench: 700 vs 694 (0.9% advantage for the Core i7-620UM). L3 cache: 4 MB (total) on the Core i7-620UM vs 2 MB (total) on the Celeron 2980U.

The Core i7-620UM uses the BGA1288 socket (PCIe 2.0), while the Celeron 2980U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR3-1066 memory speed. The Celeron 2980U supports up to 16 GB of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-620UM) vs 12 (Celeron 2980U) — the Core i7-620UM offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM55,QM57 (Core i7-620UM) and Haswell-ULT (Celeron 2980U).

Neither processor supports overclocking. Both support VT-x virtualization. Both include integrated graphics — Intel HD Graphics (Ironlake) (Core i7-620UM) and Intel HD Graphics (Haswell) (Celeron 2980U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-620UM targets Ultra-Portable Laptop, Celeron 2980U targets Low Power. Direct competitor: Core i7-620UM rivals Core 2 Duo SU9600; Celeron 2980U rivals AMD A4-5000.