Core i5-3437U vs Celeron G3900

The Core i5-3437U packs 2 cores / 4 threads, matching the Celeron G3900's 2 cores. Boost clocks reach 2.9 GHz on the Core i5-3437U versus 2.8 GHz on the Celeron G3900 — a 3.5% clock advantage for the Core i5-3437U (base: 1.9 GHz vs 2.8 GHz). The Core i5-3437U uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Celeron G3900 uses Skylake (2015−2016) (14 nm). In PassMark, the Core i5-3437U scores 2,166 against the Celeron G3900's 2,155 — a 0.5% lead for the Core i5-3437U. Geekbench 6 single-core — the metric most relevant to gaming — records 440 vs 680, a 42.9% lead for the Celeron G3900 that directly translates to higher frame rates. Multi-core Geekbench: 1,080 vs 1,250 (14.6% advantage for the Celeron G3900). L3 cache: 3 MB (total) on the Core i5-3437U vs 4 MB (total) on the Celeron G3900.

The Core i5-3437U uses the BGA1023 socket (PCIe 3.0), while the Celeron G3900 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1600 on the Core i5-3437U versus DDR4-2133 on the Celeron G3900 — the Celeron G3900 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G3900 supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: QM77,QS77 (Core i5-3437U) and H110,B150,H170,Z170 (Celeron G3900).

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — Intel HD Graphics 4000 (Core i5-3437U) and Intel HD Graphics 510 (Celeron G3900) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-3437U targets Business Ultrabook, Celeron G3900 targets Desktop. Direct competitor: Core i5-3437U rivals AMD A8-4555M; Celeron G3900 rivals Pentium G4400.