Core i3-1125G4 vs Core i3-10305

Both the Core i3-1125G4 and Core i3-10305 share an identical 4-core/8-thread configuration. Boost clocks reach 3.7 GHz on the Core i3-1125G4 versus 4.5 GHz on the Core i3-10305 — a 19.5% clock advantage for the Core i3-10305 (base: 2 GHz vs 3.8 GHz). The Core i3-1125G4 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Core i3-10305 uses Comet Lake-R (2021) (14 nm). In PassMark, the Core i3-1125G4 scores 9,284 against the Core i3-10305's 9,210 — a 0.8% lead for the Core i3-1125G4. Geekbench 6 single-core — the metric most relevant to gaming — records 1,560 vs 1,536, a 1.6% lead for the Core i3-1125G4 that directly translates to higher frame rates. Both processors carry 8 MB (total) of L3 cache.

The Core i3-1125G4 uses the FCBGA1449 socket (PCIe 4.0), while the Core i3-10305 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The Core i3-10305 supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: SoC (Core i3-1125G4) and Z490,B460 (Core i3-10305).

Neither processor supports overclocking. Only the Core i3-1125G4 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core i3-1125G4) vs VT-x, VT-d (Core i3-10305). Both include integrated graphics — UHD Graphics (48 EU) (Core i3-1125G4) and UHD Graphics 630 (Core i3-10305) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-1125G4 targets Productivity. Direct competitor: Core i3-1125G4 rivals Ryzen 3 5300U.