Celeron G3930T vs Core i7-840QM

The Celeron G3930T packs 2 cores / 2 threads, while the Core i7-840QM offers 4 cores / 8 threads — the Core i7-840QM has 2 more cores. Boost clocks reach 2.7 GHz on the Celeron G3930T versus 3.2 GHz on the Core i7-840QM — a 16.9% clock advantage for the Core i7-840QM (base: 2.7 GHz vs 1.86 GHz). The Celeron G3930T uses the Kaby Lake (2016−2019) architecture (14 nm), while the Core i7-840QM uses Clarksfield (2009−2010) (45 nm). In PassMark, the Celeron G3930T scores 2,023 against the Core i7-840QM's 2,025 — a 0.1% lead for the Core i7-840QM. Geekbench 6 single-core — the metric most relevant to gaming — records 704 vs 390, a 57.4% lead for the Celeron G3930T that directly translates to higher frame rates. Multi-core Geekbench: 1,350 vs 1,050 (25% advantage for the Celeron G3930T). L3 cache: 2 MB (total) on the Celeron G3930T vs 8 MB (total) on the Core i7-840QM.

The Celeron G3930T uses the LGA1151 socket (PCIe 3.0), while the Core i7-840QM uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron G3930T versus DDR3-1333 on the Core i7-840QM — the Celeron G3930T supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G3930T supports up to 64 GB of RAM compared to 8 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H110,B250,H270,Z270 (Celeron G3930T) and PM55,HM55,QM57,HM57 (Core i7-840QM).

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. The Celeron G3930T includes integrated graphics (Intel HD Graphics 610), while the Core i7-840QM requires a dedicated GPU. Primary use case: Celeron G3930T targets Desktop, Core i7-840QM targets Laptop. Direct competitor: Celeron G3930T rivals Pentium G4560T.