Iris Plus Graphics 640: FPS benchmarks and laptop guide

The Intel Iris Plus Graphics 640 is the step-up integrated GPU of the 2017 Kaby Lake generation — the 28W GT3e tier with embedded cache that shipped in premium ultrabooks. This guide covers its 27 benchmarked games at 1080p (5 with medium-preset data) and the single catalog machine matched to it.

Where the Iris Plus Graphics 640 sits in 2026

A catalog score of 12.4 ranks it 241st of 341 — the bottom third. The neighbors are all integrated or entry-discrete peers: the Iris Graphics 550 (13.8), generic Iris Plus (12.8) and Radeon Vega 8 Mobile (12.7) above; the UHD Graphics P750 (12.4), UHD 750 (12.2) and GeForce MX130 (12.1) below. Sitting between Intel's own older Iris and newer desktop UHD parts captures the story: this was good integrated graphics for 2017, roughly entry-discrete level, and modern baseline iGPUs have caught up.

What the chip brings

Generation 9.5 architecture on 14nm inside a 15W-class SoC design, with system memory shared (DDR3L/LPDDR3/DDR4 depending on the host) and 48MB of embedded cache — the "e" in GT3e — giving it a bandwidth edge over ordinary UHD graphics of the same era. Public benchmarks: PassMark 1489, Time Spy 437, Fire Strike 1394, GeekBench Vulkan 7001 and OpenCL 5878. The embedded cache was Intel's workaround for the memory bottleneck that normally caps iGPU throughput, and it shows in the results.

FPS in games at 1080p

At the high preset the playable tier is the light-and-older set: Valorant at 50 fps, Team Fortress 2 at 48, Farming Simulator 17 at 32, DOTA 2 and The Sims 4 at 29, Rocket League at 25 (34 on medium), Titanfall 2 at 23, Fortnite 20, Forza Horizon 4 and Rainbow Six Siege at 16 — with the legacy capped quartet at its 240/140 ceilings. The modern block confirms the ceiling: The Witcher 3 10, Far Cry 5 10, Counter-Strike 2 14, Cyberpunk 2077 7, Forza Horizon 5 9, Resident Evil 4 remake 5. Low settings and older engines are the working recipe.

Laptops that carry it

One catalog listing matches: the Dell XPS 13 9360 (2016) at $1087 — the premium ultrabook this GPU class was made for. Its median numbers describe exactly that machine: portability index 82.6 and mobility 69 among the highest in any roster here, best-GPU score 12.4 pinned to the chip itself, gaming index 63. A thin three-pound laptop with the strongest integrated graphics Intel sold that year — the roster is small but perfectly on-message.

Bottom line

The Iris Plus 640 was the best graphics you could get in a 2017 ultrabook without a discrete chip, and its table still reflects that: esports and older titles at 1080p low-to-medium, modern games out of reach. In 2026 the chip is only part of the story — the XPS 13 9360 carrying it remains a well-built machine, but at $1087 the used-market competition from newer hardware with faster baseline iGPUs is fierce. Value here depends entirely on the price falling to match the era of the graphics.