Core i7-640LM vs Core i5-4210Y

Both the Core i7-640LM and Core i5-4210Y share an identical 2-core/4-thread configuration. Boost clocks reach 2.93 GHz on the Core i7-640LM versus 1.9 GHz on the Core i5-4210Y — a 42.7% clock advantage for the Core i7-640LM (base: 2.13 GHz vs 1.5 GHz). The Core i7-640LM uses the Arrandale (2010−2011) architecture (32 nm), while the Core i5-4210Y uses Haswell (2013−2015) (22 nm). In PassMark, the Core i7-640LM scores 1,529 against the Core i5-4210Y's 1,530 — a 0.1% lead for the Core i5-4210Y. L3 cache: 4 MB (total) on the Core i7-640LM vs 3 MB on the Core i5-4210Y.

The Core i7-640LM uses the BGA1288 socket (PCIe 2.0), while the Core i5-4210Y uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 1066 on the Core i7-640LM versus DDR3L-1600 on the Core i5-4210Y — the Core i7-640LM supports 198.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-4210Y supports up to 16 GB of RAM compared to 8 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-640LM) vs 12 (Core i5-4210Y) — the Core i7-640LM offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM55,HM57,QM57,QS57 (Core i7-640LM) and HM86,HM87,QM87 (Core i5-4210Y).

Neither processor supports overclocking. Virtualization support: true (Core i7-640LM) vs VT-x, EPT (Core i5-4210Y). Both include integrated graphics — Intel HD Graphics (Ironlake) (Core i7-640LM) and HD Graphics 4200 (Core i5-4210Y) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-4210Y targets Tablet/2-in-1. Direct competitor: Core i7-640LM rivals Core 2 Duo SL9400; Core i5-4210Y rivals A4-6210.