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ASRock B850I Lightning WiFi vs Gigabyte A620M Gaming X: Comparison
What is the difference between ASRock B850I Lightning WiFi and Gigabyte A620M Gaming X?
The gap that matters here is memory slots: ASRock B850I Lightning WiFi 2 against Gigabyte A620M Gaming X 4, which puts Gigabyte A620M Gaming X 50% ahead. Add max memory to that, 128 GB on the ASRock B850I Lightning WiFi versus 256 GB on the Gigabyte A620M Gaming X, and the pattern holds. Add m.2 slots to that, 2 on the ASRock B850I Lightning WiFi versus 1 on the Gigabyte A620M Gaming X, and the pattern holds.
ASRock B850I Lightning WiFi vs Gigabyte A620M Gaming X: which one fits your build
it is the wrong buy for anyone wanting the heavier 10-layer PCB of the PG-ITX WiFi. It also earns its place with B850 builders who want a disclosed 110A SPS VRM at a lower price than PG-ITX. Avoid it for buyers assuming USB4 works with any Ryzen CPU on this board. Buy the Gigabyte A620M Gaming X for buyers comfortable double-checking exact SKU/revision details before purchasing, though it is not built for overclockers, since A620 doesn't support CPU overclocking on any revision. The same goes for budget builders who want the option of a Wi-Fi-equipped revision on an A620 board. It is not the one for anyone who wants certainty about Wi-Fi inclusion without checking the specific listing.
Where the two are identical
Everything else lines up. Platform, newest cpu family supported, oldest cpu family supported, memory channels and pcie x16 slots read the same on both, so those are not worth weighing. They match on 1 further specification as well.
Frequently asked questions
Do the ASRock B850I Lightning WiFi and Gigabyte A620M Gaming X differ on chipset?
Yes. Chipset reads B850 on the ASRock B850I Lightning WiFi versus A620 on the Gigabyte A620M Gaming X.
Is the Fan and Pump Headers the same on the ASRock B850I Lightning WiFi and Gigabyte A620M Gaming X?
It is. Both are listed at 3, so it is not a reason to pick one over the other.
Specs and benchmarks
Platform
- ASRock B850I Lightning WiFi
- AMD
- Gigabyte A620M Gaming X
- AMD
Model Number
- ASRock B850I Lightning WiFi
- B850I Lightning WiFi
- Gigabyte A620M Gaming X
- A620M Gaming X
Socket
- ASRock B850I Lightning WiFi
- AMD Ryzen 9000 / 8000 / 7000 series
- Gigabyte A620M Gaming X
- AMD Ryzen 9000 / 8000 / 7000 series (non-OC)
Form Factor
- ASRock B850I Lightning WiFi
- Mini-ITX
- Gigabyte A620M Gaming X
- Micro-ATX
Chipset
- ASRock B850I Lightning WiFi
- B850
- Gigabyte A620M Gaming X
- A620
Newest CPU Family Supported
- ASRock B850I Lightning WiFi
- Ryzen 9000
- Gigabyte A620M Gaming X
- Ryzen 9000
Memory Type
- ASRock B850I Lightning WiFi
- 2x DDR5, dual-channel, up to 128GB, up to 8200+ MT/s (OC), ECC and non-ECC unbuffered
- Gigabyte A620M Gaming X
- 4x DDR5, up to 256GB, up to 8000 MT/s (OC)Best
Oldest CPU Family Supported
- ASRock B850I Lightning WiFi
- Ryzen 7000
- Gigabyte A620M Gaming X
- Ryzen 7000
Memory Slots
- ASRock B850I Lightning WiFi
- 2-50%
- Gigabyte A620M Gaming X
- 4Best
Max Memory
- ASRock B850I Lightning WiFi
- 128 GB-50%
- Gigabyte A620M Gaming X
- 256 GBBest
Board Width
- ASRock B850I Lightning WiFi
- 170 mm
- Gigabyte A620M Gaming X
- 244 mm
M.2 Slots
- ASRock B850I Lightning WiFi
- 2Best
- Gigabyte A620M Gaming X
- 1-50%
PCIe 5.0 Support
- ASRock B850I Lightning WiFi
- Yes
- Gigabyte A620M Gaming X
- No
Wi-Fi Onboard
- ASRock B850I Lightning WiFi
- Yes
- Gigabyte A620M Gaming X
- No
Memory Channels
- ASRock B850I Lightning WiFi
- 2
- Gigabyte A620M Gaming X
- 2
Max Memory Capacity
- ASRock B850I Lightning WiFi
- 128 GB
- Gigabyte A620M Gaming X
- 256 GBBest
Max Rated Memory Speed
- ASRock B850I Lightning WiFi
- 8200 MT/sBest
- Gigabyte A620M Gaming X
- 8000 MT/s
SATA Ports
- ASRock B850I Lightning WiFi
- 2
- Gigabyte A620M Gaming X
- 4
PCIe x16 Slots
- ASRock B850I Lightning WiFi
- 1
- Gigabyte A620M Gaming X
- 1
Primary Graphics Slot Gen
- ASRock B850I Lightning WiFi
- PCIe 5.0
- Gigabyte A620M Gaming X
- PCIe 4.0
Rear USB 10Gbps Ports
- ASRock B850I Lightning WiFi
- 3
- Gigabyte A620M Gaming X
- 1
Rear USB 5Gbps Ports
- ASRock B850I Lightning WiFi
- 1
- Gigabyte A620M Gaming X
- 3
Rear USB 2.0 Ports
- ASRock B850I Lightning WiFi
- 4
- Gigabyte A620M Gaming X
- 2
Fan and Pump Headers
- ASRock B850I Lightning WiFi
- 3
- Gigabyte A620M Gaming X
- 3
Vcore Power Stages
- ASRock B850I Lightning WiFi
- 10
- Gigabyte A620M Gaming X
- 8
Wi-Fi Standard
- ASRock B850I Lightning WiFi
- Wi-Fi 6E
- Gigabyte A620M Gaming X
- None
Audio Codec
- ASRock B850I Lightning WiFi
- Realtek ALC1220
- Gigabyte A620M Gaming X
- Realtek codec (model not specified)
Expansion
- ASRock B850I Lightning WiFi
- 1x PCIe 5.0 x16 (CPU; Gen5 x16 with Ryzen 9000/7000, Gen4 with Ryzen 8000)
- Gigabyte A620M Gaming X
- 1x PCIe 4.0 x16 (CPU), 1x PCIe 3.0 x1 (chipset), 1x M.2 (PCIe 4.0 x4), 4x SATA 6Gb/s
Connectivity
- ASRock B850I Lightning WiFi
- Rear USB 3.2 Gen2 Type-C with DP-alt (up to 40Gbps with selected processors), 2x USB 3.2 Gen2 Type-A, 1x USB 3.2 Gen1, 4x USB 2.0
- Gigabyte A620M Gaming X
- Revision-dependent (confirm SKU before purchase)
Networking
- ASRock B850I Lightning WiFi
- 2.5GbE (Killer E3100G), Wi-Fi 6E, Bluetooth 5.2
- Gigabyte A620M Gaming X
- Gigabit LAN; Wi-Fi on "Gaming X AX" revision only
Special Features
- ASRock B850I Lightning WiFi
- BIOS Flashback button, Blazing M.2 Gen5 slot, Nahimic Audio
- Gigabyte A620M Gaming X
- Exists in both wired and WiFi-equipped revisions
Which one should you pick?
Choose ASRock B850I Lightning WiFi if you want the higher M.2 slots (2 vs 1) and the higher memory channels (2 vs 2).
Choose Gigabyte A620M Gaming X if you want the higher memory slots (4 vs 2) and the higher max memory (256 GB vs 128 GB).
Price comparison
| Retailer | ASRock B850I Lightning WiFi | Gigabyte A620M Gaming X |
|---|---|---|
| Amazon | View on Amazon | |
| Newegg | View on Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.




