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ASRock B850 Steel Legend WiFi vs Gigabyte X870 AORUS INFINITY: Comparison
ASRock B850 Steel Legend WiFi vs Gigabyte X870 AORUS INFINITY: the memory slots difference
The gap that matters here is memory slots: ASRock B850 Steel Legend WiFi 4 against Gigabyte X870 AORUS INFINITY 2, which puts ASRock B850 Steel Legend WiFi 50% ahead. Max memory runs the same way, 256 GB on the ASRock B850 Steel Legend WiFi versus 128 GB on the Gigabyte X870 AORUS INFINITY, another win for ASRock B850 Steel Legend WiFi. ASRock B850 Steel Legend WiFi also leads on m.2 slots, 4 on the ASRock B850 Steel Legend WiFi versus 3 on the Gigabyte X870 AORUS INFINITY.
Who each one is for
Buy the ASRock B850 Steel Legend WiFi for builders who want four M.2 slots at a B-series price and mainstream AM5 builds with Steel Legend styling preference, though it is the wrong buy for enthusiasts who need X870-level chipset lanes and builds needing dual LAN. The Gigabyte X870 AORUS INFINITY is the one to take for competitive memory and CPU overclockers and Ryzen 9000 X3D buyers wanting genuine, tested performance gains, though it is not built for anyone building a conventional cased PC and value-focused builds. It also earns its place with enthusiasts building an open test bench rather than a cased system.
Where the two are identical
Everything else lines up. Platform, newest cpu family supported, oldest cpu family supported, pcie 5.0 support and wi-fi onboard read the same on both, so those are not worth weighing. They match on 12 further specifications as well.
Frequently asked questions
Do the ASRock B850 Steel Legend WiFi and Gigabyte X870 AORUS INFINITY differ on m.2 slots onboard?
Yes. M.2 Slots Onboard reads 4 on the ASRock B850 Steel Legend WiFi versus 3 on the Gigabyte X870 AORUS INFINITY.
Is the M.2 CPU Attached Slots the same on the ASRock B850 Steel Legend WiFi and Gigabyte X870 AORUS INFINITY?
It is. Both are listed at 2, so it is not a reason to pick one over the other.
Specs and benchmarks
Platform
- ASRock B850 Steel Legend WiFi
- AMD
- Gigabyte X870 AORUS INFINITY
- AMD
Model Number
- ASRock B850 Steel Legend WiFi
- B850 Steel Legend WiFi
- Gigabyte X870 AORUS INFINITY
- Gigabyte X870 AORUS INFINITY, AORUS INFINITY Series
Socket
- ASRock B850 Steel Legend WiFi
- AMD Ryzen 9000 / 8000 / 7000 series
- Gigabyte X870 AORUS INFINITY
- AMD Ryzen 9000 / 8000 / 7000 Series
Form Factor
- ASRock B850 Steel Legend WiFi
- ATX
- Gigabyte X870 AORUS INFINITY
- E-ATX
Chipset
- ASRock B850 Steel Legend WiFi
- B850
- Gigabyte X870 AORUS INFINITY
- X870
Newest CPU Family Supported
- ASRock B850 Steel Legend WiFi
- Ryzen 9000
- Gigabyte X870 AORUS INFINITY
- Ryzen 9000
Memory Type
- ASRock B850 Steel Legend WiFi
- 4x DDR5 DIMM, up to 256GB, up to 8000+ MT/s (OC)Best
- Gigabyte X870 AORUS INFINITY
- 2x DDR5 DIMM, dual channel, up to 128GB, up to 11,400 MT/s (manual OC), non-ECC unbuffered
Oldest CPU Family Supported
- ASRock B850 Steel Legend WiFi
- Ryzen 7000
- Gigabyte X870 AORUS INFINITY
- Ryzen 7000
Memory Slots
- ASRock B850 Steel Legend WiFi
- 4Best
- Gigabyte X870 AORUS INFINITY
- 2-50%
Max Memory
- ASRock B850 Steel Legend WiFi
- 256 GBBest
- Gigabyte X870 AORUS INFINITY
- 128 GB-50%
Board Width
- ASRock B850 Steel Legend WiFi
- 244 mm
- Gigabyte X870 AORUS INFINITY
- 275 mm
M.2 Slots
- ASRock B850 Steel Legend WiFi
- 4Best
- Gigabyte X870 AORUS INFINITY
- 3-25%
PCIe 5.0 Support
- ASRock B850 Steel Legend WiFi
- Yes
- Gigabyte X870 AORUS INFINITY
- Yes
Wi-Fi Onboard
- ASRock B850 Steel Legend WiFi
- Yes
- Gigabyte X870 AORUS INFINITY
- Yes
Max Rated Memory Speed
- ASRock B850 Steel Legend WiFi
- 8000 MT/s
- Gigabyte X870 AORUS INFINITY
- 11400 MT/sBest
ECC Memory Support
- ASRock B850 Steel Legend WiFi
- Unbuffered ECC
- Gigabyte X870 AORUS INFINITY
- None
M.2 Slots Onboard
- ASRock B850 Steel Legend WiFi
- 4
- Gigabyte X870 AORUS INFINITY
- 3
M.2 PCIe 5.0 Slots
- ASRock B850 Steel Legend WiFi
- 1
- Gigabyte X870 AORUS INFINITY
- 2
M.2 PCIe 4.0 Slots
- ASRock B850 Steel Legend WiFi
- 3
- Gigabyte X870 AORUS INFINITY
- 1
M.2 CPU Attached Slots
- ASRock B850 Steel Legend WiFi
- 2
- Gigabyte X870 AORUS INFINITY
- 2
SATA Ports
- ASRock B850 Steel Legend WiFi
- 4
- Gigabyte X870 AORUS INFINITY
- 4
PCIe x16 Slots
- ASRock B850 Steel Legend WiFi
- 2
- Gigabyte X870 AORUS INFINITY
- 2
Primary Graphics Slot Gen
- ASRock B850 Steel Legend WiFi
- PCIe 5.0
- Gigabyte X870 AORUS INFINITY
- PCIe 5.0
Graphics Slot Bifurcation
- ASRock B850 Steel Legend WiFi
- None
- Gigabyte X870 AORUS INFINITY
- x8/x8
Rear USB4 or TB Ports
- ASRock B850 Steel Legend WiFi
- 0
- Gigabyte X870 AORUS INFINITY
- 1
Rear USB 20Gbps Ports
- ASRock B850 Steel Legend WiFi
- 0
- Gigabyte X870 AORUS INFINITY
- 0
Rear USB 10Gbps Ports
- ASRock B850 Steel Legend WiFi
- 4
- Gigabyte X870 AORUS INFINITY
- 3
Rear USB 5Gbps Ports
- ASRock B850 Steel Legend WiFi
- 3
- Gigabyte X870 AORUS INFINITY
- 4
Rear USB 2.0 Ports
- ASRock B850 Steel Legend WiFi
- 4
- Gigabyte X870 AORUS INFINITY
- 0
Front USB-C Header Speed
- ASRock B850 Steel Legend WiFi
- 20Gbps
- Gigabyte X870 AORUS INFINITY
- 20Gbps
Fan and Pump Headers
- ASRock B850 Steel Legend WiFi
- 6
- Gigabyte X870 AORUS INFINITY
- 8
ARGB Headers
- ASRock B850 Steel Legend WiFi
- 3
- Gigabyte X870 AORUS INFINITY
- 3
Vcore Power Stages
- ASRock B850 Steel Legend WiFi
- 14
- Gigabyte X870 AORUS INFINITY
- 18
Power Stage Current Rating
- ASRock B850 Steel Legend WiFi
- 80 A
- Gigabyte X870 AORUS INFINITY
- 110 A
EPS 12V Configuration
- ASRock B850 Steel Legend WiFi
- Two 8-pin
- Gigabyte X870 AORUS INFINITY
- Two 8-pin
BIOS Flashback
- ASRock B850 Steel Legend WiFi
- Yes
- Gigabyte X870 AORUS INFINITY
- Yes
Max Ethernet Speed
- ASRock B850 Steel Legend WiFi
- 2.5 Gbps
- Gigabyte X870 AORUS INFINITY
- 5 GbpsBest
Ethernet Port Count
- ASRock B850 Steel Legend WiFi
- 1
- Gigabyte X870 AORUS INFINITY
- 1
Wi-Fi Standard
- ASRock B850 Steel Legend WiFi
- Wi-Fi 7
- Gigabyte X870 AORUS INFINITY
- Wi-Fi 7
Bluetooth Version
- ASRock B850 Steel Legend WiFi
- 5.4
- Gigabyte X870 AORUS INFINITY
- 5.4
Audio Codec
- ASRock B850 Steel Legend WiFi
- Realtek ALC4082, Nahimic, 7.1-channel
- Gigabyte X870 AORUS INFINITY
- Realtek ALC1220, 7.1-channel, DTS:X Ultra
Expansion
- ASRock B850 Steel Legend WiFi
- PCIe 5.0 x16 + PCIe 4.0 x16 (x4)
- Gigabyte X870 AORUS INFINITY
- 3x M.2 (2x PCIe 5.0 CPU + 1x PCIe 4.0 chipset), PCIe 5.0 x16 + PCIe 5.0 x8 (x16 physical)
Connectivity
- ASRock B850 Steel Legend WiFi
- USB 3.2, Nahimic audio software
- Gigabyte X870 AORUS INFINITY
- 1x USB4 Type-C rear, 3x USB 10Gbps rear, 4x USB 5Gbps rear, front USB-C 20Gbps header with 65W PD
Networking
- ASRock B850 Steel Legend WiFi
- 2.5G LAN, Wi-Fi 7
- Gigabyte X870 AORUS INFINITY
- Realtek 5GbE LAN, Wi-Fi 7 (Qualcomm QCNCM865), Bluetooth 5.4
Special Features
- ASRock B850 Steel Legend WiFi
- 4x M.2 (1x Gen5, 3x Gen4)
- Gigabyte X870 AORUS INFINITY
- X3D Turbo Mode 2.0, EZ Debug Zone, onboard power/reset/Clear CMOS/Cold Reset and ECLK buttons, DualBIOS
Which one should you pick?
Choose ASRock B850 Steel Legend 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 (4 vs 3).
Choose Gigabyte X870 AORUS INFINITY if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | ASRock B850 Steel Legend WiFi | Gigabyte X870 AORUS INFINITY |
|---|---|---|
| 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.