Hardware Spec Index

Novexa MB-6645 XT Z890 Mini-ITX Wi-Fi 7 Motherboard

Motherboards · Novexa · SKU MB6645-XT · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index4,328 (Motherboards scale)
Category rank#47,492
Street price$399
Power41 W
Performance per dollar10.85
Released2024

Specifications

BrandNovexa
ModelNovexa MB-6645 XT
SocketLGA1851
ChipsetZ890
Form factorMini-ITX
Memory2× DDR5 DIMM, up to 128 GB
Max memory speedDDR5-9000+ (OC, CUDIMM)
Primary x16 slotPCIe 5.0 x16
M.2 slots2 total, 1× PCIe 5.0 x4
Rear USB-C2× Thunderbolt 4 (40Gbps, Type-C)
Ethernet5GbE
WirelessWi-Fi 7 (802.11be, 320 MHz) + Bluetooth 5.4
OverclockingCPU + memory
VRM19+2+1 phases, 90 A stages
BIOSDual UEFI, BIOS flashback button

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysIntel LGA1851 SocketIntel 800 Series ChipsetsDDR5 Memory ExplainedPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Novexa MB-6645 XT Z890 Mini-ITX Wi-Fi 7 Motherboard”, https://vextor7.com/item/123285 (accessed 2026-10-19).