lighter than the previous version. XPS 15 (9510, 2021) The 2021 XPS 15 comes equipped with up to Intel’s 11th Gen Tiger Lake Core i9-11900H and 3050 Ti. It features up to 64GB of DDR4-3200 and up to 4TB of m.2 SSD storage, but it can be upgraded to hold a maximum of two 4TB SSDs. The XPS 15 offers display options for either a 4K UHD+ (3840x2400) InfinityEdge touch display with a VESA DisplayHDR400 certification, or FHD (1920 x 1200) panels, plus a 3.5K (3456 x 2160) InfinityEdge OLED touch display option. Ports have also been upgraded, the XPS 15 offers two Thunderbolt 4 ports and a regular USB 3.2 Gen 2 Type-C port. XPS 15 (9520, 2022) Dell has updated its XPS 15 laptops with intel 12-generation Alder Lake chips. The new CPU options include the Core i5-12500H, Core i7-12700H, and Core i9-12900HK. Aside from the CPU update, RAM has been upgraded as well from DDR4-3200 to DDR5-4800. GPU and storage options haven't changed and so users can still configure with PCIe4 x4 SSDs or up to GeForce RTX 3050 Ti graphics if desired. Comparison XPS 15z XPS 15z (L511Z) The XPS 15z was released in May 2011 and is a 15.6-inch laptop. It is branded as the thinnest 15 inch PC on the market. It is noted for having a very similar design to the current generation Apple Macbook Pro computer, and even sported a silver aluminum casing. Its base-price at release is US$999 (A$1399) and it can be customized up to the dual-core Intel Core i7. it is equipped with a NVIDIA GeForce GT 525M 1 GiB video card (Australian version is equipped with 2 GiB video RAM), and can be customized up to 8 GiB of DDR3 memory. The computer can either have a 750 GB 7200 RPM hard drive or a 256 GB solid state drive. It also contains a 8x slot-loading CD/DVD reader/burner. The American version has a base screen resolution of 1366×768, while the Australian release is 1920×1080 pixels. On 6 September 2011, Dell upgraded the choices for the optional extra Core i5 and i7 processors. Throughout its production, the XPS 15z was plagued with DCP latency related sound spikes due to faulty network drivers provided by Dell. The solution was to use third party drivers, as discovered by a community of forum users. Another chronic issue was the lower right corner