Hardware Spec Index

Orbita MB-6645 Core Z790 ATX Wi-Fi 6E Motherboard

Motherboards · Orbita · SKU MB6645-CORE · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index4,784 (Motherboards scale)
Category rank#35,477
Street price$459
Power47 W
Performance per dollar10.42
Released2022

Specifications

BrandOrbita
ModelOrbita MB-6645 Core
SocketLGA1700
ChipsetZ790
Form factorATX
Memory4× DDR5 DIMM, up to 192 GB
Max memory speedDDR5-7200+ (OC)
Primary x16 slotPCIe 5.0 x16
M.2 slots5 total, 1× PCIe 5.0 x4
Rear USB-C1× USB 3.2 Gen 2x2 20Gbps (Type-C)
Ethernet2.5GbE
WirelessWi-Fi 6E (802.11ax, 6 GHz) + Bluetooth 5.3
OverclockingCPU + memory
VRM21+2+2 phases, 90 A stages
BIOSDual UEFI, BIOS flashback button

Related guides

PCIe Lanes ExplainedM.2 SSD Sizes and KeysIntel LGA1700 SocketDDR5 Memory ExplainedPCIe 5.0 ExplainedWi-Fi 6E Explained

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Cite this page: Hardware Spec Index, “Orbita MB-6645 Core Z790 ATX Wi-Fi 6E Motherboard”, https://vextor7.com/item/11377129 (accessed 2026-10-26).