Core i5-6400T vs Core i3-1110G4

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

The Core i5-6400T uses the LGA1151 socket (PCIe 3.0), while the Core i3-1110G4 uses FCBGA1598 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-2133 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: 16 (Core i5-6400T) vs 4 (Core i3-1110G4) — 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 (Core i5-6400T) vs VT-x, VT-d, EPT (Core i3-1110G4). Both include integrated graphics — HD 530 (Core i5-6400T) and UHD Graphics Xe G4 (48 EU) (Core i3-1110G4) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-6400T targets Budget, Core i3-1110G4 targets Thin & Light Laptop. Direct competitor: Core i5-6400T rivals Core i3-7100; Core i3-1110G4 rivals Ryzen 3 4300U.