ASRock B660M Pro RS/ax vs ASRock X299 Steel Legend
A side-by-side spec comparison of the ASRock B660M Pro RS/ax and the ASRock X299 Steel Legend. We line up every specification, highlight the winner of each, and tally an overall verdict so you can decide which motherboard is right for your build.
| Specification | ||
|---|---|---|
| WiFi | No | No |
| Socket | LGA1700 | LGA2066 |
| Chipset | B660M | X299 |
| M.2 Slots | 2 | 2 |
| Pci Slots | 2 | 2 |
| Bluetooth | No | No |
| Max Memory | 128 GB | 256 GB |
| Form Factor | Micro-ATX | ATX |
| Memory Type | DDR5 | DDR4 |
| Memory Slots | 4 | 8 |
ASRock B660M Pro RS/ax
1
spec won
ASRock X299 Steel Legend
2
specs won
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