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ASRock B650M Pro RS vs ASUS Prime B650M-A WiFi II: Comparison
ASRock B650M Pro RS vs ASUS Prime B650M-A WiFi II: the max memory difference
Max memory is where these two genuinely part company, ASRock B650M Pro RS 256 GB against ASUS Prime B650M-A WiFi II 192 GB, a 25% lead for ASRock B650M Pro RS. M.2 slots runs the same way, 3 on the ASRock B650M Pro RS versus 2 on the ASUS Prime B650M-A WiFi II, another win for ASRock B650M Pro RS. They differ on wi-fi onboard too, No on the ASRock B650M Pro RS versus Yes on the ASUS Prime B650M-A WiFi II.
Which should you buy, ASRock B650M Pro RS or ASUS Prime B650M-A WiFi II?
The ASRock B650M Pro RS suits the most affordable current-generation AM5 builds, though it is not the pick for anyone who wants Wi-Fi included out of the box and builds that want a PCIe 5.0 x16 GPU slot. It is equally the pick for builders who don't need a PCIe 5.0 GPU slot or built-in WiFi. The ASUS Prime B650M-A WiFi II is the one to take for builders who don't need Wi-Fi 6E or 6GHz band support, though it is not built for anyone who wants Wi-Fi 6E or Wi-Fi 7 and builds needing more than 192GB total memory capacity. The same goes for budget micro-ATX builds that want a PCIe 5.0 M.2 slot for future upgrades.
What ASRock B650M Pro RS and ASUS Prime B650M-A WiFi II have in common
The common ground is wider than the gap: chipset, socket, memory slots, form factor and platform are identical here. They match on 11 further specifications as well.
Frequently asked questions
Do the ASRock B650M Pro RS and ASUS Prime B650M-A WiFi II differ on max memory capacity?
Yes. Max Memory Capacity reads 256 GB on the ASRock B650M Pro RS versus 192 GB on the ASUS Prime B650M-A WiFi II.
Is the Newest CPU Family Supported the same on the ASRock B650M Pro RS and ASUS Prime B650M-A WiFi II?
It is. Both are listed at Ryzen 9000, so it is not a reason to pick one over the other.
Specs and benchmarks
Platform
- ASRock B650M Pro RS
- AMD
- ASUS Prime B650M-A WiFi II
- AMD
Model Number
- ASRock B650M Pro RS
- B650M Pro RS
- ASUS Prime B650M-A WiFi II
- Prime B650M-A WiFi II
Socket
- ASRock B650M Pro RS
- AMD Ryzen 9000 / 8000 / 7000 series
- ASUS Prime B650M-A WiFi II
- AMD Ryzen 9000 / 8000 / 7000 series
Form Factor
- ASRock B650M Pro RS
- Micro-ATX
- ASUS Prime B650M-A WiFi II
- Micro-ATX
Chipset
- ASRock B650M Pro RS
- B650
- ASUS Prime B650M-A WiFi II
- B650
Newest CPU Family Supported
- ASRock B650M Pro RS
- Ryzen 9000
- ASUS Prime B650M-A WiFi II
- Ryzen 9000
Memory Type
- ASRock B650M Pro RS
- 4x DDR5 DIMM, up to 256GB, dual-channel, DDR5-7200+ (OC), XMP/EXPO
- ASUS Prime B650M-A WiFi II
- 4x DDR5 DIMM, up to 192GB, up to 7600+ MT/s (OC)
Oldest CPU Family Supported
- ASRock B650M Pro RS
- Ryzen 7000
- ASUS Prime B650M-A WiFi II
- Ryzen 7000
CPU Overclocking Supported
- ASRock B650M Pro RS
- Yes
- ASUS Prime B650M-A WiFi II
- Yes
Memory Slots
- ASRock B650M Pro RS
- 4
- ASUS Prime B650M-A WiFi II
- 4
Max Memory
- ASRock B650M Pro RS
- 256 GBBest
- ASUS Prime B650M-A WiFi II
- 192 GB-25%
M.2 Slots
- ASRock B650M Pro RS
- 3Best
- ASUS Prime B650M-A WiFi II
- 2-33%
PCIe 5.0 Support
- ASRock B650M Pro RS
- Yes
- ASUS Prime B650M-A WiFi II
- No
Wi-Fi Onboard
- ASRock B650M Pro RS
- No
- ASUS Prime B650M-A WiFi II
- Yes
Max Memory Capacity
- ASRock B650M Pro RS
- 256 GBBest
- ASUS Prime B650M-A WiFi II
- 192 GB
Max Rated Memory Speed
- ASRock B650M Pro RS
- 7200 MT/s
- ASUS Prime B650M-A WiFi II
- 7600 MT/sBest
ECC Memory Support
- ASRock B650M Pro RS
- Unbuffered ECC
- ASUS Prime B650M-A WiFi II
- None
M.2 Slots Onboard
- ASRock B650M Pro RS
- 3
- ASUS Prime B650M-A WiFi II
- 2
M.2 PCIe 5.0 Slots
- ASRock B650M Pro RS
- 1
- ASUS Prime B650M-A WiFi II
- 1
M.2 PCIe 4.0 Slots
- ASRock B650M Pro RS
- 2
- ASUS Prime B650M-A WiFi II
- 1
SATA Ports
- ASRock B650M Pro RS
- 4
- ASUS Prime B650M-A WiFi II
- 4
PCIe x16 Slots
- ASRock B650M Pro RS
- 2
- ASUS Prime B650M-A WiFi II
- 1
Primary Graphics Slot Gen
- ASRock B650M Pro RS
- PCIe 4.0
- ASUS Prime B650M-A WiFi II
- PCIe 4.0
Rear USB 10Gbps Ports
- ASRock B650M Pro RS
- 2
- ASUS Prime B650M-A WiFi II
- 2
Rear USB 5Gbps Ports
- ASRock B650M Pro RS
- 2
- ASUS Prime B650M-A WiFi II
- 2
Rear USB 2.0 Ports
- ASRock B650M Pro RS
- 4
- ASUS Prime B650M-A WiFi II
- 4
Vcore Power Stages
- ASRock B650M Pro RS
- 8
- ASUS Prime B650M-A WiFi II
- Not officially disclosed by ASUS
EPS 12V Configuration
- ASRock B650M Pro RS
- One 8-pin
- ASUS Prime B650M-A WiFi II
- 8-pin plus 4-pin
Max Ethernet Speed
- ASRock B650M Pro RS
- 2.5 Gbps
- ASUS Prime B650M-A WiFi II
- 2.5 Gbps
Ethernet Port Count
- ASRock B650M Pro RS
- 1
- ASUS Prime B650M-A WiFi II
- 1
Wi-Fi Standard
- ASRock B650M Pro RS
- None
- ASUS Prime B650M-A WiFi II
- Wi-Fi 6
Audio Codec
- ASRock B650M Pro RS
- Realtek ALC897, Nahimic enhancement
- ASUS Prime B650M-A WiFi II
- Realtek 7.1 surround, 24-bit/192kHz
Expansion
- ASRock B650M Pro RS
- 1x PCIe 4.0 x16, 1x PCIe 3.0 x16 (x4 mode); 1x M.2 PCIe 5.0 x4, 1x M.2 PCIe 4.0 x4, 1x M.2 PCIe 4.0 x2; 4x SATA III; 1x M.2 Key-E (Wi-Fi optional)
- ASUS Prime B650M-A WiFi II
- PCIe 4.0 x16 + 2x PCIe 4.0 x16 (x1)
Connectivity
- ASRock B650M Pro RS
- 1x Rear USB 3.2 Gen2 Type-C (10Gbps), 1x Rear USB 3.2 Gen2 Type-A (10Gbps), 2x Rear USB 3.2 Gen1 (5Gbps), 4x Rear USB 2.0; M.2 Key E for optional WiFi module
- ASUS Prime B650M-A WiFi II
- 4x SATA 6Gb/s
Networking
- ASRock B650M Pro RS
- Realtek RTL8125BG 2.5G LAN (WiFi optional via M.2 Key E)
- ASUS Prime B650M-A WiFi II
- Realtek 2.5Gb LAN, Wi-Fi 6, Bluetooth 5.2
Special Features
- ASRock B650M Pro RS
- 3x M.2 (1x Gen5, 1x Gen4, 1x Gen4 x2)
- ASUS Prime B650M-A WiFi II
- 2x M.2 (1x Gen5 primary, 1x Gen4)
Which one should you pick?
Choose ASRock B650M Pro RS if you want the higher memory slots (4 vs 4), the higher max memory (256 GB vs 192 GB) and the higher M.2 slots (3 vs 2).
Choose ASUS Prime B650M-A WiFi II if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | ASRock B650M Pro RS | ASUS Prime B650M-A WiFi II |
|---|---|---|
| Newegg | View on Newegg | |
| Amazon | View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.