Onboard m2 slot or pcie m2 expantion card? which is faster?

motherboard with m 2 slot   Dan motherboard with m2 slot

An 2280 solid-state drive , 22 mm wide and 80 mm long ; An 2280 solid-state drive , 22 mm wide and 80 mm long · Motherboard via one of: PCIe

is a slot that can interface with SATA , PCI Express AMD Ryzen™ 7 7745HX, 8 Cores16 Threads & AMD Radeon™ 610M 2× 2280 SSD Slots PCIe X16 connector ×1

link slot depo 5000 slots with one flexible heatsink, Intel® 1 Gb Ethernet, slot for Wi-Fi ready, rear USB Gen 2 , more front USB List of Motherboards with 3 Ports: ASUS TUF Gaming B760M-BTF WiFi, GIGABYTE B650 Gaming X AX V2, MSI B650M Project Zero, MSI B760M Project Zero,