DELL Latitude 5520 laptop i5-1135G7 8GB 256GB 15.6 FHD

Dell Latitude 5520 business laptop

The Dell Latitude 5520 is a 15.6 inch business laptop built around a quad-core Intel Core i5-1135G7 processor with a 4.2 GHz turbo frequency. It ships with 8 GB of memory and a 256 GB SSD running Windows 10 Pro. The non-touch FHD display resolves at 1920 x 1080 and relies on integrated graphics. Thunderbolt 4 ports with Power Delivery and DisplayPort alternate mode handle docking and external displays.

Thermals noise and power in daily use

In typical office workloads the Tiger Lake core runs at a 0.9 GHz base clock, keeping heat output and fan noise low. The 15.6 inch chassis measuring 0.78 inches thick and starting at 1.59 kg provides enough surface area for passive dissipation during light tasks. Thunderbolt 4 ports negotiate power delivery efficiently so the 256 GB SSD and 8 GB memory subsystem draw minimal power while the system idles or streams video.

Sustained load behaviour

When all four cores hold 4.2 GHz under prolonged compile or render jobs the cooling system must reject more heat, so fan speed rises above the quiet baseline. The 256 GB SSD maintains consistent throughput without thermal throttling in the supplied configuration. Thunderbolt 4 links remain stable for external GPU or storage enclosures during extended sessions, though the integrated graphics ceiling limits 3D workloads regardless of thermal headroom.