Core i3-1005G1 vs Core i7-8665UE

The Core i3-1005G1 packs 2 cores / 4 threads, while the Core i7-8665UE offers 4 cores / 8 threads — the Core i7-8665UE has 2 more cores. Boost clocks reach 3.4 GHz on the Core i3-1005G1 versus 4.4 GHz on the Core i7-8665UE — a 25.6% clock advantage for the Core i7-8665UE (base: 1.2 GHz vs 1.7 GHz). The Core i3-1005G1 uses the Ice Lake (Client) (2019) architecture (10 nm), while the Core i7-8665UE uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Core i3-1005G1 scores 4,827 against the Core i7-8665UE's 4,852 — a 0.5% lead for the Core i7-8665UE. L3 cache: 4 MB (total) on the Core i3-1005G1 vs 8 MB (total) on the Core i7-8665UE.

The Core i3-1005G1 uses the FCBGA1526 socket (PCIe 3.0), while the Core i7-8665UE uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 / LPDDR4-3733 memory speed. Both support up to 64 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes.

Neither processor supports overclocking. Only the Core i3-1005G1 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x / VT-d / EPT (Core i3-1005G1) vs VT-x, VT-d (Core i7-8665UE). Both include integrated graphics — Intel UHD Graphics (Ice Lake) (Core i3-1005G1) and UHD Graphics 620 (Core i7-8665UE) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-1005G1 targets Thin-and-light, Core i7-8665UE targets Embedded.