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ASRock B850 Steel Legend WiFi vs ASUS Prime X870-P WiFi: Comparison
What is the difference between ASRock B850 Steel Legend WiFi and ASUS Prime X870-P WiFi?
The first real difference is chipset: ASRock B850 Steel Legend WiFi B850 against ASUS Prime X870-P WiFi X870. There is a split on audio codec as well, Realtek ALC4082, Nahimic, 7.1-channel on the ASRock B850 Steel Legend WiFi versus Realtek 7.1 Surround Sound HD Audio CODEC on the ASUS Prime X870-P WiFi. There is a split on expansion as well, PCIe 5.0 x16 + PCIe 4.0 x16 on the ASRock B850 Steel Legend WiFi versus PCIe 5.0 x16 + 3x PCIe 4.0 x16 on the ASUS Prime X870-P WiFi.
ASRock B850 Steel Legend WiFi vs ASUS Prime X870-P WiFi: which one fits your build
The ASRock B850 Steel Legend WiFi suits builders who want four M.2 slots at a B-series price and mainstream AM5 builds with Steel Legend styling preference, though it is not built for enthusiasts who need X870-level chipset lanes and builds needing dual LAN. The ASUS Prime X870-P WiFi is the one to take for budget-focused builders who still want X870-level PCIe 5.0 features, though it is the wrong buy for overclockers who want TUF or ROG-level VRM certification and builders who need more than four M.2 slots. The same goes for builds that want Wi-Fi 7 and USB4 at a Prime-series price.
What ASRock B850 Steel Legend WiFi and ASUS Prime X870-P WiFi have in common
Everything else lines up. Socket, memory slots, max memory, m.2 slots and m.2 slots onboard read the same on both, so those are not worth weighing. They match on 19 further specifications as well.
Frequently asked questions
Do the ASRock B850 Steel Legend WiFi and ASUS Prime X870-P WiFi differ on networking?
Yes. Networking reads 2.5G LAN, Wi-Fi 7 on the ASRock B850 Steel Legend WiFi versus Realtek 2.5Gb LAN, Wi-Fi 7 on the ASUS Prime X870-P WiFi.
Is the Form Factor the same on the ASRock B850 Steel Legend WiFi and ASUS Prime X870-P WiFi?
It is. Both are listed at ATX, so it is not a reason to pick one over the other.
Specs and benchmarks
Platform
- ASRock B850 Steel Legend WiFi
- AMD
- ASUS Prime X870-P WiFi
- AMD
Model Number
- ASRock B850 Steel Legend WiFi
- B850 Steel Legend WiFi
- ASUS Prime X870-P WiFi
- Prime X870-P WiFi
Socket
- ASRock B850 Steel Legend WiFi
- AMD Ryzen 9000 / 8000 / 7000 series
- ASUS Prime X870-P WiFi
- AMD Ryzen 9000 / 8000 / 7000 series
Form Factor
- ASRock B850 Steel Legend WiFi
- ATX
- ASUS Prime X870-P WiFi
- ATX
Chipset
- ASRock B850 Steel Legend WiFi
- B850
- ASUS Prime X870-P WiFi
- X870
Newest CPU Family Supported
- ASRock B850 Steel Legend WiFi
- Ryzen 9000
- ASUS Prime X870-P WiFi
- Ryzen 9000
Memory Type
- ASRock B850 Steel Legend WiFi
- 4x DDR5 DIMM, up to 256GB, up to 8000+ MT/s (OC)
- ASUS Prime X870-P WiFi
- 4x DDR5 DIMM, up to 256GB, up to 8000+ MT/s (OC)
Oldest CPU Family Supported
- ASRock B850 Steel Legend WiFi
- Ryzen 7000
- ASUS Prime X870-P WiFi
- Ryzen 7000
Memory Slots
- ASRock B850 Steel Legend WiFi
- 4
- ASUS Prime X870-P WiFi
- 4
Max Memory
- ASRock B850 Steel Legend WiFi
- 256 GB
- ASUS Prime X870-P WiFi
- 256 GB
M.2 Slots
- ASRock B850 Steel Legend WiFi
- 4
- ASUS Prime X870-P WiFi
- 4
PCIe 5.0 Support
- ASRock B850 Steel Legend WiFi
- Yes
- ASUS Prime X870-P WiFi
- Yes
Wi-Fi Onboard
- ASRock B850 Steel Legend WiFi
- Yes
- ASUS Prime X870-P WiFi
- Yes
Max Rated Memory Speed
- ASRock B850 Steel Legend WiFi
- 8000 MT/s
- ASUS Prime X870-P WiFi
- 8000 MT/s
ECC Memory Support
- ASRock B850 Steel Legend WiFi
- Unbuffered ECC
- ASUS Prime X870-P WiFi
- None
M.2 Slots Onboard
- ASRock B850 Steel Legend WiFi
- 4
- ASUS Prime X870-P WiFi
- 4
M.2 PCIe 5.0 Slots
- ASRock B850 Steel Legend WiFi
- 1
- ASUS Prime X870-P WiFi
- 1
M.2 PCIe 4.0 Slots
- ASRock B850 Steel Legend WiFi
- 3
- ASUS Prime X870-P WiFi
- 2
SATA Ports
- ASRock B850 Steel Legend WiFi
- 4
- ASUS Prime X870-P WiFi
- 2
Primary Graphics Slot Gen
- ASRock B850 Steel Legend WiFi
- PCIe 5.0
- ASUS Prime X870-P WiFi
- PCIe 5.0
Rear USB4 or TB Ports
- ASRock B850 Steel Legend WiFi
- 0
- ASUS Prime X870-P WiFi
- 2
Rear USB 10Gbps Ports
- ASRock B850 Steel Legend WiFi
- 4
- ASUS Prime X870-P WiFi
- 1
Rear USB 5Gbps Ports
- ASRock B850 Steel Legend WiFi
- 3
- ASUS Prime X870-P WiFi
- 3
Rear USB 2.0 Ports
- ASRock B850 Steel Legend WiFi
- 4
- ASUS Prime X870-P WiFi
- 4
Vcore Power Stages
- ASRock B850 Steel Legend WiFi
- 14
- ASUS Prime X870-P WiFi
- 14
Power Stage Current Rating
- ASRock B850 Steel Legend WiFi
- 80 A
- ASUS Prime X870-P WiFi
- 80 A
EPS 12V Configuration
- ASRock B850 Steel Legend WiFi
- Two 8-pin
- ASUS Prime X870-P WiFi
- Two 8-pin
Max Ethernet Speed
- ASRock B850 Steel Legend WiFi
- 2.5 Gbps
- ASUS Prime X870-P WiFi
- 2.5 Gbps
Ethernet Port Count
- ASRock B850 Steel Legend WiFi
- 1
- ASUS Prime X870-P WiFi
- 1
Wi-Fi Standard
- ASRock B850 Steel Legend WiFi
- Wi-Fi 7
- ASUS Prime X870-P WiFi
- Wi-Fi 7
Bluetooth Version
- ASRock B850 Steel Legend WiFi
- 5.4
- ASUS Prime X870-P WiFi
- 5.4
Audio Codec
- ASRock B850 Steel Legend WiFi
- Realtek ALC4082, Nahimic, 7.1-channel
- ASUS Prime X870-P WiFi
- Realtek 7.1 Surround Sound HD Audio CODEC
Expansion
- ASRock B850 Steel Legend WiFi
- PCIe 5.0 x16 + PCIe 4.0 x16 (x4)
- ASUS Prime X870-P WiFi
- PCIe 5.0 x16 + 3x PCIe 4.0 x16 (x1)
Connectivity
- ASRock B850 Steel Legend WiFi
- USB 3.2, Nahimic audio software
- ASUS Prime X870-P WiFi
- USB4, USB-C, BIOS FlashBack
Networking
- ASRock B850 Steel Legend WiFi
- 2.5G LAN, Wi-Fi 7
- ASUS Prime X870-P WiFi
- Realtek 2.5Gb LAN, Wi-Fi 7
Special Features
- ASRock B850 Steel Legend WiFi
- 4x M.2 (1x Gen5, 3x Gen4)
- ASUS Prime X870-P WiFi
- 4x M.2 (1x Gen5, 2x Gen4, 1x Gen3)
Which one should you pick?
Choose ASRock B850 Steel Legend WiFi if you want the higher memory slots (4 vs 4), the higher max memory (256 GB vs 256 GB) and the higher M.2 slots (4 vs 4).
Choose ASUS Prime X870-P WiFi if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | ASRock B850 Steel Legend WiFi | ASUS Prime X870-P WiFi |
|---|---|---|
| Amazon | View on 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.