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ASUS PRIME X870-P WIFI ATX motherboard with Ryzen 9 9900X CPU, silver heatsinks and black PCB

ASUS

ASUS PRIME X870-P WIFI & Ryzen 9 9900X Combo

SKU CH-2F79-1S3YD

A motherboard and CPU combo with 12 cores, 24 threads, 5.6 GHz boost, DDR5 support to 192 GB, PCIe 5.0 graphics and M.2 slots, Wi-Fi 7, 2.5 Gbps LAN and Bluetooth 5.4

  • ChipsetAMD X870
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 4400
  • Max supported RAM192 GB
  • Memory channelsDual Channel

Model PRIME X870-P WIFI

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CPU + Ryzen 9 9900X

  • 12 cores and 24 threads for heavy multitasking with Ryzen 9 9900X
  • 6 GHz max boost unlocks overclocking headroom on Zen 5 architecture
  • 14+2+1 80A DrMOS power stages deliver stable CPU voltage
  • DDR5 support up to 8000 MT/s overclocked via EXPO profiles
  • Wi-Fi 7 and 2.5Gbps LAN provide fast network throughput

Combo for high-core AI work

This bundle pairs an ASUS PRIME X870-P WIFI motherboard with a Ryzen 9 9900X processor. The CPU delivers 12 cores and 24 threads based on Zen 5 architecture with a 5.6 GHz max boost clock. The board uses the AMD X870 chipset on an 8-layer PCB with 14+2+1 80A DrMOS power stages. It targets builders who need strong multi-threaded performance for AI workloads and content creation.

Suits AI developers and heavy multitaskers

The 64 MB L3 cache and DDR5-5600 support help feed data-hungry applications. Four DDR5 slots accept up to 192 GB of memory at speeds beyond 8000 MT/s when overclocked. Builders who only need moderate core counts or who do not require PCIe 5.0 storage bandwidth can save money with a simpler platform. The combo also omits a CPU cooler, so factor that into the build plan.

Straightforward DIY assembly

A pre-mounted I/O shield, Q-Antenna, PCIe Slot Q-Release and M.2 Q-Latch reduce installation friction. BIOS FlashBack lets you update firmware without a CPU installed, while Q-Dashboard and Q-LED Core simplify post-build diagnostics. The flexible M.2 heatsink must be positioned correctly to avoid blocking the primary PCIe 5.0 x16 slot.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $831.99
Pricier than about 80% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model namePRIME X870-P WIFI+R9 9900X
Processor
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 4400
Max supported RAM192 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports2 x SATA 6Gb/s
SATA and RAID support* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/5/10 and SATA RAID 0/1. RAID 5 Function is only supportted by AMD Ryzen 9000 series CPU.
Audio & video
Audio chipRealtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Sound channels7.1 Channels
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot (supports x16 mode)
Onboard USB headers1 x USB 10 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connectors
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

5 more in the same range

Questions about this item

Will the Ryzen 9 9900X run its 5.6 GHz boost without a separate cooler?

The CPU is sold without a cooler, so a compatible AM5 cooler must be purchased separately to reach the 5.6 GHz boost clock.

Can I install four DDR5 modules and reach 192 GB total capacity?

Yes, the board has four 288-pin slots and supports up to 192 GB of DDR5 memory in dual-channel mode.

Does the motherboard include Wi-Fi 7 and 2.5 Gb Ethernet out of the box?

Yes, the board integrates Wi-Fi 7 (802.11 be), Bluetooth 5.4 and a Realtek 2.5 Gb LAN controller.

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