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ASRock B650 PG Lightning vs ASRock Z790 Pro RS: Comparison

ASRock B650 PG Lightning and ASRock Z790 Pro RS separate most on m.2 slots: ASRock B650 PG Lightning at 2, ASRock Z790 Pro RS at 4, 50% in favour of ASRock Z790 Pro RS. Max Memory splits them by another 25%, this time favouring ASRock B650 PG Lightning. They match on 5 other specifications, including form factor, memory type and memory slots.

ASRock B650 PG Lightning (AM5/AMD B650/ATX/Two M.2 Slots/PCIe 5.0/2.5G LAN)
ASRockASRock B650 PG Lightning
ASRock Z790 Pro RS (LGA1700/Intel Z790/ATX/14+1+1 Power Phase/Quad M.2/2.5G LAN)
ASRockASRock Z790 Pro RS

Specs

Specification
ASRock B650 PG Lightning (AM5/AMD B650/ATX/Two M.2 Slots/PCIe 5.0/2.5G LAN)
ASRock B650 PG Lightning
ASRock Z790 Pro RS (LGA1700/Intel Z790/ATX/14+1+1 Power Phase/Quad M.2/2.5G LAN)
ASRock Z790 Pro RS
PlatformAMDIntel
Socket TypeAM5LGA1700
SocketAM5LGA1700
Form FactorATXATX
ChipsetB650Z790
Memory TypeDDR5DDR5
Memory Slots44
Max Memory256192-25%
M.2 Slots2-50%4
PCIe 5.0 SupportYesYes
Wi-Fi OnboardNoNo
ModelB650 PG LightningZ790 Pro RS
VRMEntry-tier design (phase count not published)14+1+1 power phase
Memory4x DDR5 DIMM, up to 256GB, current AM5 EXPO-supported speeds up to ~7200+ MT/s4x DDR5 DIMM, up to 7200+ MT/s (OC)
ExpansionPCIe 5.0 x16 + PCIe 3.0 x16 (x4)PCIe 5.0 x16
ConnectivityUSB 3.28x SATA3, Front USB 3.2 Gen2x2 Type-C
Networking2.5G LAN (WiFi variant sold separately)2.5G Dragon LAN (WiFi variant sold separately)
AudioRealtek ALC897Realtek ALC897, Nahimic, 7.1-channel
Special Features2x M.2 (1x Gen5, 1x Gen4)4x M.2 (Hyper M.2, PCIe Gen4x4)
CPU SupportAMD Ryzen 9000 / 8000 / 7000 seriesIntel 12th / 13th / 14th Gen Core

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