Mag X870 Tomahawk WiFi
The MSI Mag X870 Tomahawk WiFi is a ATX AM5 motherboard on the X870 chipset. It supports DDR5 memory up to 8,400 MT/s and 4 M.2 slots. Full specs, power delivery, and current prices are below.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
MaxMyBuild scores
How we score →How well the Mag X870 Tomahawk WiFiis equipped for gaming and for productivity, scored 0–100 from its specs. Scores are fit-for-purpose: a capable board can top the gaming score without being the most expensive.
Weighs CPU power delivery, memory speed support, the GPU PCIe slot, Wi-Fi version, and M.2 storage — the things that actually matter for a gaming build.
Rewards fast, plentiful M.2 storage and USB I/O, PCIe expansion, memory capacity and slots — what matters for content creation and heavy multitasking.
Max CPU power
300 W
The Mag X870 Tomahawk WiFi can reliably power a CPU drawing up to about 300 W from its 2x7+2+1 power-stage (VRM) layout. That’s the number that decides whether a board can run a power-hungry chip at full boost without throttling — comfortable for even the top Ryzen 9 chips.
Specifications
Platform
- Chipset
- X870
- Socket
- AM5
- Form factor
- ATX
- MSRP
- $300.00
Memory
- Type
- DDR5
- Slots
- 4
- Max speed
- 8,400 MT/s
- Max capacity
- 192 GB
- Channels
- 2-channel
- ECC / memory
- UDIMM
Power & VRM
- Max CPU power
- 300 W
- Phase config
- 2x7+2+1
- VRM stages
- 80A SPS
- EPS power
- 8+8
- VRM heatsink
- Full coverage
Storage & Expansion
- M.2 slots
- 4
- M.2 layout
- 2× PCIe 5.0 ×4, 1× PCIe 4.0 ×4, 1× PCIe 4.0 ×2
- M.2 heatsinks
- All slots
- SATA ports
- 4 SATA3
- PCIe ×16 slots
- 1× PCIe 5.0 ×16, 1× PCIe 3.0 ×1, 1× PCIe 4.0 ×4
Ethernet & Wi-Fi
- Realtek RTL8126-CG
- 5 GbE
- Ethernet ports
- 1
- Wi-Fi
- Wi-Fi 7
USB & I/O
- Rear USB-A
- 4× USB 2.0, 3× 5 Gbps, 2× 10 Gbps
- Rear USB-C
- 1× 10 Gbps, 2× USB4 40 Gbps
- Front USB-C
- 1× 20Gbps
- Front USB 3 headers
- 2
- Front USB 2 headers
- 2
Audio & Video
- Audio codec
- ALC4080
- Audio jacks
- 2
- S/PDIF out
- Yes
- HDMI
- HDMI 2.1
- USB-C video
- 2× DP 1.4
Cooling, RGB & Design
- Fan headers
- 8
- 12V RGB headers
- 1
- 5V ARGB headers
- 3
- PCB colour
- Black
- Heatsink colour
- Dark Grey, Lime
Onboard & Diagnostics
- BIOS Flashback
- Yes (rear)
- Diagnostics
- POST code display
- Onboard buttons
- Clear CMOS
- Aux PCIe power
- 1 8-pin
Compare the Mag X870 Tomahawk WiFi against every other board on the motherboard comparison table. Not sure it fits your chip? The socket compatibility guide explains AM5 pairings.
Where to buy the Mag X870 Tomahawk WiFi
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | — | See on Amazon |  |
| B&H | In stock | $229.99 |  |
| Newegg | In stock | $229.99 |  |
| Amazon | — | See on Amazon | |
The Mag X870 Tomahawk WiFi starts from $225.99 across 4 retailers (Wi-Fi 7). Prices update daily from live stock.
Which CPUs fit the Mag X870 Tomahawk WiFi?
Compare all CPUs →In-stock AM5 processors this board can run — socket-matched and within its 300 W VRM budget, ranked by gaming value (performance per dollar).
| Processor | Cores | Gaming | From | |
|---|---|---|---|---|
 | Ryzen 5 7600X AMD | 6/12 | 67.3 | $160.00 |
 | Ryzen 5 9600X AMD | 6/12 | 72.6 | $177.95 |
 | Ryzen 5 8400F AMD | 6/12 | 50.0 | $125.61 |
 | Ryzen 5 7500F AMD | 6/12 | 61.0 | $174.57 |
 | Ryzen 5 8500G AMD | 6/12 | 52.0 | $148.90 |
 | Ryzen 7 7700X AMD | 8/16 | 70.6 | $223.99 |
 | Ryzen 5 7600 AMD | 6/12 | 63.4 | $209.90 |
 | Ryzen 5 8600G AMD | 6/12 | 55.0 | $187.88 |
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