Core i5-4440 vs Core i7-8665UE

The Core i5-4440 packs 4 cores / 4 threads, matching the Core i7-8665UE's 4 cores. Boost clocks reach 3.3 GHz on the Core i5-4440 versus 4.4 GHz on the Core i7-8665UE — a 28.6% clock advantage for the Core i7-8665UE (base: 3.1 GHz vs 1.7 GHz). The Core i5-4440 uses the Haswell (2013−2015) architecture (22 nm), while the Core i7-8665UE uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Core i5-4440 scores 4,788 against the Core i7-8665UE's 4,852 — a 1.3% lead for the Core i7-8665UE. L3 cache: 6 MB (total) on the Core i5-4440 vs 8 MB (total) on the Core i7-8665UE.

The Core i5-4440 uses the LGA1150 socket (PCIe 3.0), while the Core i7-8665UE uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1600 on the Core i5-4440 versus DDR4-2400 on the Core i7-8665UE — the Core i7-8665UE supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-8665UE 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.

Neither processor supports overclocking. Virtualization support: VT-x, VT-d, EPT (Core i5-4440) vs VT-x, VT-d (Core i7-8665UE). Both include integrated graphics — HD Graphics 4600 (Core i5-4440) and UHD Graphics 620 (Core i7-8665UE) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-4440 targets Budget, Core i7-8665UE targets Embedded. Direct competitor: Core i5-4440 rivals Ryzen 3 1200.

The Core i5-4440 launched at $184 MSRP, while the Core i7-8665UE debuted at $409. At current prices ($101 vs $409), the Core i5-4440 is $308 cheaper. In terms of value (PassMark points per dollar), the Core i5-4440 delivers 47.4 pts/$ vs 11.9 pts/$ for the Core i7-8665UE — making the Core i5-4440 the 119.9% better value option.