Core i3-1110G4 vs Core i5-6400T

The Core i3-1110G4 packs 2 cores / 4 threads, while the Core i5-6400T offers 4 cores / 4 threads — the Core i5-6400T has 2 more cores. Boost clocks reach 3.9 GHz on the Core i3-1110G4 versus 2.8 GHz on the Core i5-6400T — a 32.8% clock advantage for the Core i3-1110G4 (base: 1.8 GHz vs 2.2 GHz). The Core i3-1110G4 uses the Tiger Lake-UP4 (2020−2021) architecture (10 nm SuperFin), while the Core i5-6400T uses Skylake (2015−2016) (14 nm). In PassMark, the Core i3-1110G4 scores 4,160 against the Core i5-6400T's 4,243 — a 2% lead for the Core i5-6400T. Geekbench 6 single-core — the metric most relevant to gaming — records 1,491 vs 950, a 44.3% lead for the Core i3-1110G4 that directly translates to higher frame rates. L3 cache: 6 MB (total) on the Core i3-1110G4 vs 6 MB on the Core i5-6400T.

The Core i3-1110G4 uses the FCBGA1598 socket (PCIe 4.0), while the Core i5-6400T uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to LPDDR4x-4267 memory speed. The Core i5-6400T 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. PCIe lanes: 4 (Core i3-1110G4) vs 16 (Core i5-6400T) — the Core i5-6400T offers 12 more lanes for additional GPUs or NVMe drives.

Neither processor supports overclocking. Only the Core i3-1110G4 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core i3-1110G4) vs VT-x, VT-d (Core i5-6400T). Both include integrated graphics — UHD Graphics Xe G4 (48 EU) (Core i3-1110G4) and HD 530 (Core i5-6400T) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-1110G4 targets Thin & Light Laptop, Core i5-6400T targets Budget. Direct competitor: Core i3-1110G4 rivals Ryzen 3 4300U; Core i5-6400T rivals Core i3-7100.