Core i3-4010Y vs Celeron 3865U

The Core i3-4010Y packs 2 cores / 4 threads, matching the Celeron 3865U's 2 cores. Boost clocks reach 1.3 GHz on the Core i3-4010Y versus 1.8 GHz on the Celeron 3865U — a 32.3% clock advantage for the Celeron 3865U (base: 1.3 GHz vs 1.8 GHz). The Core i3-4010Y uses the Haswell (2013−2015) architecture (22 nm), while the Celeron 3865U uses Kaby Lake-U (2017) (14 nm). In PassMark, the Core i3-4010Y scores 1,358 against the Celeron 3865U's 1,343 — a 1.1% lead for the Core i3-4010Y. L3 cache: 3 MB (total) on the Core i3-4010Y vs 2 MB (total) on the Celeron 3865U.

The Core i3-4010Y uses the FCBGA1168 socket (PCIe 3.0), while the Celeron 3865U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Core i3-4010Y versus DDR4-2133 / LPDDR3-1866 on the Celeron 3865U — the Celeron 3865U supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 3865U supports up to 32 GB of RAM compared to 16 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Core i3-4010Y) vs 10 (Celeron 3865U) — the Core i3-4010Y offers 2 more lanes for additional GPUs or NVMe drives.

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i3-4010Y) vs VT-x / VT-d / EPT (Celeron 3865U). Both include integrated graphics — HD Graphics 4200 (Core i3-4010Y) and Intel HD Graphics 610 (Celeron 3865U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-4010Y targets Mobile, Celeron 3865U targets Entry-level. Direct competitor: Celeron 3865U rivals Pentium Gold 4415U.