DELL G15 5520 laptop i7-12700H RTX 3060 64GB 4TB USB-C Pro

Dell G15 5520 gaming laptop

The Dell G15 5520 is a 15.6 inch gaming laptop built around a 12th Generation Intel Core i7-12700H processor with 14 cores and 20 threads. It ships with 64GB of DDR5 memory and a 4TB PCIe SSD, running Windows 11 Pro out of the box. The configuration targets users who want high core counts and large storage in a single portable chassis.

Sustained load behaviour

The 120Hz FHD display with 250 nits brightness pairs with an NVIDIA GeForce RTX 3060 laptop GPU carrying 6GB of GDDR6 video memory. Under continuous gaming or rendering workloads the 14-core hybrid architecture balances performance and efficient cores to maintain clocks while thermals are managed by the internal cooling system. The 24MB cache helps keep data close during extended sessions.

Installation and common issues

The unit arrives with the original seal opened by engineers for the memory and storage upgrades, so no further hardware installation is required by the buyer. Wireless connectivity uses Intel WiFi 6 AX201 and Bluetooth 5.0, while wired networking relies on a Killer 2500 Mbps Ethernet port. External displays connect through the Thunderbolt 4 USB-C port with DisplayPort alt mode or the HDMI 2.1 output.