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ASRock B850M Pro-A WiFi vs MSI PRO A620M-B: Comparison
What is the difference between ASRock B850M Pro-A WiFi and MSI PRO A620M-B?
On memory slots the spread is 50%, ASRock B850M Pro-A WiFi 4 against MSI PRO A620M-B 2, so ASRock B850M Pro-A WiFi takes it. M.2 slots runs the same way, 3 on the ASRock B850M Pro-A WiFi versus 1 on the MSI PRO A620M-B, another win for ASRock B850M Pro-A WiFi. ASRock B850M Pro-A WiFi also leads on max memory, 256 GB on the ASRock B850M Pro-A WiFi versus 128 GB on the MSI PRO A620M-B. They differ on pcie 5.0 support too, Yes on the ASRock B850M Pro-A WiFi versus No on the MSI PRO A620M-B.
ASRock B850M Pro-A WiFi vs MSI PRO A620M-B: which one fits your build
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 is equally the pick for budget AM5 builds that still want a PCIe 5.0 M.2 slot. it is the wrong buy for anyone needing factory Wi-Fi or a second M.2 slot. It also earns its place with new Ryzen 9000 builds wanting the most current A620 board in MSI's lineup. It is not the one for buyers who already own the A620M-E and don't need the marginal CPU support update.
Where the two are identical
Everything else lines up. Socket, form factor, platform, newest cpu family supported and oldest cpu family supported read the same on both, so those are not worth weighing. They match on 5 further specifications as well.
Frequently asked questions
Do the ASRock B850M Pro-A WiFi and MSI PRO A620M-B differ on chipset?
Yes. Chipset reads B850 on the ASRock B850M Pro-A WiFi versus A620 on the MSI PRO A620M-B.
Is the SATA Ports the same on the ASRock B850M Pro-A WiFi and MSI PRO A620M-B?
It is. Both are listed at 4, so it is not a reason to pick one over the other.
Specs and benchmarks
Platform
- ASRock B850M Pro-A WiFi
- AMD
- MSI PRO A620M-B
- AMD
Model Number
- ASRock B850M Pro-A WiFi
- B850M Pro-A WiFi
- MSI PRO A620M-B
- PRO A620M-B
Socket
- ASRock B850M Pro-A WiFi
- AMD Ryzen 9000 / 8000 / 7000 series
- MSI PRO A620M-B
- AMD Ryzen 9000 / 8000 / 7000 series
Form Factor
- ASRock B850M Pro-A WiFi
- Micro-ATX
- MSI PRO A620M-B
- Micro-ATX
Chipset
- ASRock B850M Pro-A WiFi
- B850
- MSI PRO A620M-B
- A620
Newest CPU Family Supported
- ASRock B850M Pro-A WiFi
- Ryzen 9000
- MSI PRO A620M-B
- Ryzen 9000
Memory Type
- ASRock B850M Pro-A WiFi
- 4x DDR5 DIMM, up to 256GB, up to 8000+ MT/s (OC)Best
- MSI PRO A620M-B
- 2x DDR5, dual-channel, up to 128GB, 6800+ MT/s (OC)
Oldest CPU Family Supported
- ASRock B850M Pro-A WiFi
- Ryzen 7000
- MSI PRO A620M-B
- Ryzen 7000
Memory Slots
- ASRock B850M Pro-A WiFi
- 4Best
- MSI PRO A620M-B
- 2-50%
Max Memory
- ASRock B850M Pro-A WiFi
- 256 GBBest
- MSI PRO A620M-B
- 128 GB-50%
Board Width
- ASRock B850M Pro-A WiFi
- 244 mm
- MSI PRO A620M-B
- 215 mm
M.2 Slots
- ASRock B850M Pro-A WiFi
- 3Best
- MSI PRO A620M-B
- 1-67%
PCIe 5.0 Support
- ASRock B850M Pro-A WiFi
- Yes
- MSI PRO A620M-B
- No
Wi-Fi Onboard
- ASRock B850M Pro-A WiFi
- Yes
- MSI PRO A620M-B
- No
Max Rated Memory Speed
- ASRock B850M Pro-A WiFi
- 8000 MT/sBest
- MSI PRO A620M-B
- 6800 MT/s
ECC Memory Support
- ASRock B850M Pro-A WiFi
- Unbuffered ECC
- MSI PRO A620M-B
- None
M.2 Slots Onboard
- ASRock B850M Pro-A WiFi
- 3
- MSI PRO A620M-B
- 1
M.2 PCIe 4.0 Slots
- ASRock B850M Pro-A WiFi
- 2
- MSI PRO A620M-B
- 1
M.2 CPU Attached Slots
- ASRock B850M Pro-A WiFi
- 2
- MSI PRO A620M-B
- 1
SATA Ports
- ASRock B850M Pro-A WiFi
- 4
- MSI PRO A620M-B
- 4
PCIe x16 Slots
- ASRock B850M Pro-A WiFi
- 1
- MSI PRO A620M-B
- 1
Primary Graphics Slot Gen
- ASRock B850M Pro-A WiFi
- PCIe 5.0
- MSI PRO A620M-B
- PCIe 4.0
Rear USB 5Gbps Ports
- ASRock B850M Pro-A WiFi
- 2
- MSI PRO A620M-B
- 4
Rear USB 2.0 Ports
- ASRock B850M Pro-A WiFi
- 4
- MSI PRO A620M-B
- 2
Front USB-C Header Speed
- ASRock B850M Pro-A WiFi
- 5Gbps
- MSI PRO A620M-B
- None
Fan and Pump Headers
- ASRock B850M Pro-A WiFi
- 5
- MSI PRO A620M-B
- 3
ARGB Headers
- ASRock B850M Pro-A WiFi
- 3
- MSI PRO A620M-B
- 1
Vcore Power Stages
- ASRock B850M Pro-A WiFi
- 8
- MSI PRO A620M-B
- Not officially disclosed by MSI
Max Ethernet Speed
- ASRock B850M Pro-A WiFi
- 2.5 Gbps
- MSI PRO A620M-B
- 2.5 Gbps
Ethernet Port Count
- ASRock B850M Pro-A WiFi
- 1
- MSI PRO A620M-B
- 1
Wi-Fi Standard
- ASRock B850M Pro-A WiFi
- Wi-Fi 6E
- MSI PRO A620M-B
- None
Audio Codec
- ASRock B850M Pro-A WiFi
- Realtek ALC897, 7.1-channel
- MSI PRO A620M-B
- Realtek ALC897, 7.1-channel
Expansion
- ASRock B850M Pro-A WiFi
- PCIe 5.0 x16 + PCIe 4.0 x4
- MSI PRO A620M-B
- 1x PCIe 4.0 x16 (CPU) + 1x PCIe 3.0 x1 (chipset)
Connectivity
- ASRock B850M Pro-A WiFi
- SATA3, USB 3.2
- MSI PRO A620M-B
- Rear 4x USB 5Gbps Type-A, 2x USB 2.0, HDMI 2.1, VGA
Networking
- ASRock B850M Pro-A WiFi
- 2.5G LAN, Wi-Fi 6E
- MSI PRO A620M-B
- Realtek RTL8125BG 2.5G LAN, no Wi-Fi
Special Features
- ASRock B850M Pro-A WiFi
- 3x M.2 (1x Gen5 Blazing, 2x Gen4 Hyper)
- MSI PRO A620M-B
- 2.5G LAN, DDR5-6800+ OC memory support
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 128 GB) and the higher M.2 slots (3 vs 1).
Choose MSI PRO A620M-B if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | ASRock B850M Pro-A WiFi | MSI PRO A620M-B |
|---|---|---|
| Amazon | View on Amazon | |
| 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.