Core i7-5960X vs Core i5-1240U

The Core i7-5960X packs 8 cores / 16 threads, while the Core i5-1240U offers 10 cores / 12 threads — the Core i5-1240U has 2 more cores. Boost clocks reach 3.5 GHz on the Core i7-5960X versus 4.4 GHz on the Core i5-1240U — a 22.8% clock advantage for the Core i5-1240U (base: 3 GHz vs 1.1 GHz). The Core i7-5960X uses the Haswell-E (2014) architecture (22 nm), while the Core i5-1240U uses Alder Lake-U (2022) (Intel 7 nm). In PassMark, the Core i7-5960X scores 13,382 against the Core i5-1240U's 13,387 — a 0% lead for the Core i5-1240U. Geekbench 6 single-core — the metric most relevant to gaming — records 1,244 vs 1,650, a 28.1% lead for the Core i5-1240U that directly translates to higher frame rates. L3 cache: 20 MB (total) on the Core i7-5960X vs 12 MB (total) on the Core i5-1240U.

The Core i7-5960X uses the LGA2011 socket (PCIe 3.0), while the Core i5-1240U uses FCBGA1781 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 on the Core i7-5960X versus LPDDR5-5200 on the Core i5-1240U — the Core i5-1240U supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 64 GB of RAM. Memory channels: 4 (Core i7-5960X) vs 2 (Core i5-1240U). PCIe lanes: 40 (Core i7-5960X) vs 14 (Core i5-1240U) — the Core i7-5960X offers 26 more lanes for additional GPUs or NVMe drives.

Virtualization support: Yes (Core i7-5960X) vs VT-x, VT-d, EPT (Core i5-1240U). The Core i5-1240U includes integrated graphics (Iris Xe Graphics 80EU), while the Core i7-5960X requires a dedicated GPU. Primary use case: Core i5-1240U targets Thin & Light Laptop. Direct competitor: Core i5-1240U rivals Ryzen 5 5600U.