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ASRock B850M Pro-A WiFi vs ASUS Prime A620M-K: Comparison
ASRock B850M Pro-A WiFi vs ASUS Prime A620M-K max memory compared
On max memory the spread is 63%, ASRock B850M Pro-A WiFi 256 GB against ASUS Prime A620M-K 96 GB, so ASRock B850M Pro-A WiFi takes it. Add memory slots to that, 4 on the ASRock B850M Pro-A WiFi versus 2 on the ASUS Prime A620M-K, and the pattern holds. M.2 slots runs the same way, 3 on the ASRock B850M Pro-A WiFi versus 1 on the ASUS Prime A620M-K, another win for ASRock B850M Pro-A WiFi.
Which should you buy, ASRock B850M Pro-A WiFi or ASUS Prime A620M-K?
The ASRock B850M Pro-A WiFi suits compact micro-ATX builds that don't need heavy overclocking headroom, though it is not the pick for overclockers who need more than an 8+2+1 phase VRM and builds that want Wi-Fi 7 instead of Wi-Fi 6E. It also earns its place with budget AM5 builds that still want a PCIe 5.0 M.2 slot. Buy the ASUS Prime A620M-K for office or budget productivity builds using Ryzen APUs, though it is the wrong buy for anyone wanting factory Wi-Fi or faster-than-Gigabit networking. The same goes for buyers who specifically want ASUS's brand and support at the lowest possible AM5 price. It is the wrong buy for builders who want the extra features found on the TUF Gaming A620M-Plus WiFi.
Where the two are identical
Where they agree, they agree completely, form factor, platform, newest cpu family supported, oldest cpu family supported and sata ports included, so the decision does not turn on any of those. They match on 2 further specifications as well.
Frequently asked questions
Do the ASRock B850M Pro-A WiFi and ASUS Prime A620M-K differ on chipset?
Yes. Chipset reads B850 on the ASRock B850M Pro-A WiFi versus A620 on the ASUS Prime A620M-K.
Is the PCIe x16 Slots the same on the ASRock B850M Pro-A WiFi and ASUS Prime A620M-K?
It is. Both are listed at 1, so it is not a reason to pick one over the other.
Specs and benchmarks
Platform
- ASRock B850M Pro-A WiFi
- AMD
- ASUS Prime A620M-K
- AMD
Model Number
- ASRock B850M Pro-A WiFi
- B850M Pro-A WiFi
- ASUS Prime A620M-K
- Prime A620M-K
Socket
- ASRock B850M Pro-A WiFi
- AMD Ryzen 9000 / 8000 / 7000 series
- ASUS Prime A620M-K
- AMD Ryzen 9000 / 8000 / 7000 series (non-OC)
Form Factor
- ASRock B850M Pro-A WiFi
- Micro-ATX
- ASUS Prime A620M-K
- Micro-ATX
Chipset
- ASRock B850M Pro-A WiFi
- B850
- ASUS Prime A620M-K
- A620
Newest CPU Family Supported
- ASRock B850M Pro-A WiFi
- Ryzen 9000
- ASUS Prime A620M-K
- Ryzen 9000
Memory Type
- ASRock B850M Pro-A WiFi
- 4x DDR5 DIMM, up to 256GB, up to 8000+ MT/s (OC)Best
- ASUS Prime A620M-K
- 2x DDR5, dual-channel, up to 96GB, up to 7200+ MT/s (EXPO/OC)
Oldest CPU Family Supported
- ASRock B850M Pro-A WiFi
- Ryzen 7000
- ASUS Prime A620M-K
- Ryzen 7000
Memory Slots
- ASRock B850M Pro-A WiFi
- 4Best
- ASUS Prime A620M-K
- 2-50%
Max Memory
- ASRock B850M Pro-A WiFi
- 256 GBBest
- ASUS Prime A620M-K
- 96 GB-62%
M.2 Slots
- ASRock B850M Pro-A WiFi
- 3Best
- ASUS Prime A620M-K
- 1-67%
PCIe 5.0 Support
- ASRock B850M Pro-A WiFi
- Yes
- ASUS Prime A620M-K
- No
Wi-Fi Onboard
- ASRock B850M Pro-A WiFi
- Yes
- ASUS Prime A620M-K
- No
Max Rated Memory Speed
- ASRock B850M Pro-A WiFi
- 8000 MT/sBest
- ASUS Prime A620M-K
- 7200 MT/s
ECC Memory Support
- ASRock B850M Pro-A WiFi
- Unbuffered ECC
- ASUS Prime A620M-K
- None
M.2 Slots Onboard
- ASRock B850M Pro-A WiFi
- 3
- ASUS Prime A620M-K
- 1
SATA Ports
- ASRock B850M Pro-A WiFi
- 4
- ASUS Prime A620M-K
- 4
PCIe x16 Slots
- ASRock B850M Pro-A WiFi
- 1
- ASUS Prime A620M-K
- 1
Primary Graphics Slot Gen
- ASRock B850M Pro-A WiFi
- PCIe 5.0
- ASUS Prime A620M-K
- PCIe 4.0
Rear USB 5Gbps Ports
- ASRock B850M Pro-A WiFi
- 2
- ASUS Prime A620M-K
- 4
Rear USB 2.0 Ports
- ASRock B850M Pro-A WiFi
- 4
- ASUS Prime A620M-K
- 2
Vcore Power Stages
- ASRock B850M Pro-A WiFi
- 8
- ASUS Prime A620M-K
- Not officially disclosed by ASUS
EPS 12V Configuration
- ASRock B850M Pro-A WiFi
- 8-pin plus 4-pin
- ASUS Prime A620M-K
- One 8-pin
Max Ethernet Speed
- ASRock B850M Pro-A WiFi
- 2.5 GbpsBest
- ASUS Prime A620M-K
- 1 Gbps
Ethernet Port Count
- ASRock B850M Pro-A WiFi
- 1
- ASUS Prime A620M-K
- 1
Wi-Fi Standard
- ASRock B850M Pro-A WiFi
- Wi-Fi 6E
- ASUS Prime A620M-K
- None
Audio Codec
- ASRock B850M Pro-A WiFi
- Realtek ALC897, 7.1-channel
- ASUS Prime A620M-K
- Realtek 7.1 Surround Sound High Definition Audio CODEC
Expansion
- ASRock B850M Pro-A WiFi
- PCIe 5.0 x16 + PCIe 4.0 x4
- ASUS Prime A620M-K
- 1x PCIe 4.0 x16 + 1x PCIe 3.0 x1
Connectivity
- ASRock B850M Pro-A WiFi
- SATA3, USB 3.2
- ASUS Prime A620M-K
- 4x SATA 6Gb/s
Networking
- ASRock B850M Pro-A WiFi
- 2.5G LAN, Wi-Fi 6E
- ASUS Prime A620M-K
- 1GbE (Realtek)
Special Features
- ASRock B850M Pro-A WiFi
- 3x M.2 (1x Gen5 Blazing, 2x Gen4 Hyper)
- ASUS Prime A620M-K
- ASUS's most affordable AM5 entry point
Which one should you pick?
Choose ASRock B850M Pro-A WiFi if you want the higher memory slots (4 vs 2), the higher max memory (256 GB vs 96 GB) and the higher M.2 slots (3 vs 1).
Choose ASUS Prime A620M-K if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | ASRock B850M Pro-A WiFi | ASUS Prime A620M-K |
|---|---|---|
| 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.