Core i5-8400H: CPU benchmarks and laptop guide

The Intel Core i5-8400H is a 2018 Coffee Lake-H quad-core that powers 8 catalog laptops — a premium-lean roster of ThinkPad X1 Extreme and P1 machines alongside Dell's Latitude 5491 and Precision workstations. Measured against the catalog's 69 tracked games, it clears the recommended CPU tier for 35 of them. This guide covers where the chip sits among laptop CPUs, what it brings, and which laptops carry it.

Where the Core i5-8400H sits in 2026

A catalog score of 51 places the chip 259th of 741 scored laptop CPUs — the upper-middle of the table, eight years into its career. The neighborhood within three ranks: the Core i5-9300H (51.2), Core i5-9300HF (51.2) and Ryzen 5 7520U (51.1) just above, the Core i5-8300H (50.9) alongside, and the Xeon E3-1505M v5 (50.8) and Core i7-1260P (50.8) just below. Slotting between its own Coffee Lake sibling on one side and a 2022 Core i7 on the other captures the chip's character well: entry-performance silicon whose extra clock headroom has aged it into comfortable mid-tier standing.

What the chip brings

Coffee Lake-H here means 4 cores and 8 threads on a 14 nm process, running a 2.5 GHz base clock with turbo up to 4.2 GHz inside a 45 W H-class envelope — a genuine performance design for thicker, better-cooled chassis. The integrated Intel UHD Graphics 630 is a display solution, not a gaming one; the laptops around this chip lean on discrete graphics instead. Public benchmarks set the level: Geekbench single-core 1,285, multi-core 3,650, and a PassMark rating of 7,509 — solid mid-tier numbers that still handle modern productivity without straining.

Games: CPU-side readiness

Measured purely as a processor, the chip clears the recommended CPU tier for 35 of 69 cataloged games — including Far Cry 5, Doom Eternal, Death Stranding, Diablo 4, Flight Simulator 2020, Escape from Tarkov, God of War, Grand Theft Auto V and Overwatch. Another 27 titles sit at the minimum tier: Cyberpunk 2077, Hogwarts Legacy, The Witcher 3, Red Dead Redemption 2, Counter-Strike 2 and PUBG: Battlegrounds all list the chip above their minimum but below their recommended CPU bar. Seven games ask for more — Starfield, Elden Ring, Baldur's Gate 3, Fortnite, Apex Legends, Helldivers 2 and Call of Duty: Warzone. These are CPU-only verdicts: actual playability depends on the laptop's GPU and RAM, which matters a lot on this roster since it mixes thin ultrabooks with big mobile workstations.

Laptops that carry it

The roster is 2018–2019 premium hardware: Lenovo's ThinkPad X1 Extreme ($471) and Gen 2 ($531), the ThinkPad P1 Gen 1 ($459) and Gen 2 ($447), the ThinkPad P72 ($462), plus Dell's Precision 3530 ($357), Precision 7730 ($495) and the Latitude 5491 at $278 as the value entry. Prices run $278 to $531 — used-market pricing on machines that were $1,500-plus flagships when new. Laptops built around it typically show a median office comfort score of 95, a performance index of 50.7, a photo/design index of 82, an engineering/CAD index of 44 and a gaming index of 40.5 — refined work machines first, part-time gaming machines second.

Bottom line

The Core i5-8400H is one of the smarter buys in the 2018 vintage: it lives almost exclusively in premium chassis — X1 Extreme, P1, Precision — that pair it with strong cooling, good displays and professional build quality, now at $278–$531. With 35 of 69 games at recommended CPU settings, the processor is rarely the weak link; the GPU on the specific model decides the gaming story. For work, study and occasional play, this chip in these bodies remains a genuinely good deal.