DELL Latitude 7400 laptop i7-8665U 8GB 128GB SSD 14.0" FHD Silver

Business ultraportable for mobile professionals

The Dell Latitude 7400 is a 14.0-inch non-touch laptop finished in silver aluminium. It runs Windows 10 Pro on an Intel Core i7-8665U quad-core processor with a base frequency of 1.9 GHz and a turbo boost up to 4.8 GHz. The system pairs 8 GB of memory with a 128 GB solid-state drive and integrated graphics. Connectivity includes 802.11ac wireless LAN, Bluetooth, Thunderbolt with Power Delivery and DisplayPort, HDMI 1.4, USB 3.1 Gen 1 ports, a uSD 4.0 card reader and a universal audio jack.

Thermals and power in typical office work

The chassis measures .70 inch at the front and .75 inch at the rear, with a footprint of 12.65 by 8.42 inches and a starting weight of 2.99 lb. Its slim profile relies on integrated graphics and a low-power U-series CPU to keep heat output modest during document editing, video calls and web browsing. Fan activity remains low under these light loads, and the 7.4 mm barrel DC input supplies power without a bulky adapter.

Sustained load behaviour

When all four cores hold elevated frequencies for extended compiles or large spreadsheet calculations, the compact thermal solution must dissipate heat within a tight 1.36 kg frame. Surface temperatures on the aluminium deck rise noticeably and the fan spins audibly higher to maintain the 4.80 GHz turbo ceiling. Buyers who need sustained multi-core throughput without throttling should consider a larger workstation-class chassis.