Core Ultra 5 235H vs Core i9-7980XE

The Core Ultra 5 235H packs 14 cores / 14 threads, while the Core i9-7980XE offers 18 cores / 36 threads — the Core i9-7980XE has 4 more cores. Boost clocks reach 5 GHz on the Core Ultra 5 235H versus 4.4 GHz on the Core i9-7980XE — a 12.8% clock advantage for the Core Ultra 5 235H (base: 4.4 GHz vs 2.6 GHz). The Core Ultra 5 235H uses the Arrow Lake-H (2025) architecture (5 nm), while the Core i9-7980XE uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core Ultra 5 235H scores 29,820 against the Core i9-7980XE's 29,634 — a 0.6% lead for the Core Ultra 5 235H. L3 cache: 18 MB on the Core Ultra 5 235H vs 24.75 MB (total) on the Core i9-7980XE.

The Core Ultra 5 235H uses the FCBGA2049 socket (PCIe 5.0), while the Core i9-7980XE uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 5 235H versus DDR4-2666 on the Core i9-7980XE — the Core Ultra 5 235H supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 5 235H supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Memory channels: 2 (Core Ultra 5 235H) vs 4 (Core i9-7980XE). PCIe lanes: 28 (Core Ultra 5 235H) vs 44 (Core i9-7980XE) — the Core i9-7980XE offers 16 more lanes for additional GPUs or NVMe drives.

Both processors feature an unlocked multiplier for overclocking. Only the Core i9-7980XE supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core Ultra 5 235H) vs VT-x, VT-d (Core i9-7980XE). The Core Ultra 5 235H includes integrated graphics (Intel Arc 140T Graphics), while the Core i9-7980XE requires a dedicated GPU. Primary use case: Core Ultra 5 235H targets Thin-and-light Performance Laptop, Core i9-7980XE targets Workstation. Direct competitor: Core Ultra 5 235H rivals Ryzen 7 9800H.