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ATX motherboard with large VRM heatsink and CPU in AM5 socket

ASUS

ASUS PRIME X870-P WIFI + Ryzen 9 9950X AMD motherboard CPU combo

SKU CH-RPYG-EHR87

Pairs an AMD Ryzen 9 9950X 16-core 32-thread processor with a 5.7 GHz boost and 64 MB L3 cache with an X870 ATX motherboard offering DDR5 up to 8000 MT/s, PCIe 5.0 x16 and M.2, Wi-Fi 7.

  • 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 9950X

  • 16-core 32-thread Zen 5 CPU delivers heavy multi-thread performance
  • 14+2+1 80A DrMOS stages with 8-layer PCB ensure stable power delivery
  • Wi-Fi 7 and 2.5 Gbps LAN provide high-speed wireless and wired connectivity
  • Four DDR5 slots support up to 192 GB at 8000+ MT/s overclocked
  • PCIe 5.0 x16 slot and PCIe 5.0 M.2 enable next-gen GPU and storage bandwidth

Combo for AI workloads

This ASUS PRIME X870-P WIFI motherboard is paired with the Ryzen 9 9950X processor. The CPU delivers 16 cores and 32 threads based on Zen 5 architecture with a 5.7 GHz maximum boost clock. The platform targets advanced AI computing and demanding multithreaded applications on the AM5 socket.

PCIe 5.0 and DDR5 limits

The board provides one PCIe 5.0 x16 slot and one PCIe 5.0 M.2 2280 slot when used with Ryzen 9000 or 7000 series processors. Memory runs at DDR5 4400 natively and can reach 8000+ MT/s with overclocking up to 192 GB across four 288-pin slots. With Ryzen 8000 series the primary slots operate at PCIe 4.0 speeds instead.

DIY-friendly installation

Pre-mounted I/O shield, Q-Release for the graphics card slot and M.2 Q-Latch simplify the build. BIOS FlashBack allows updates without a CPU installed. Common issues include forgetting to enable EXPO profiles for memory speed and ensuring the cooler is mounted before powering on since the processor ships without one.

How it compares

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

Price $947.99
Pricier than about 86% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model namePRIME X870-P WIFI+R9 9950X
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 16-core Ryzen 9 9950X run stably on this board without an aftermarket cooler?

The processor is sold without a cooler, so a compatible AM5 cooler must be purchased separately. The board uses 14+2+1 80A DrMOS stages and an 8-layer PCB to deliver clean power to the 16-core CPU.

Can I install four DDR5 modules and reach 192 GB while keeping dual-channel operation?

Yes, the board has four 288-pin slots supporting up to 192 GB in dual-channel mode. JEDEC DDR5 4400 runs natively; EXPO profiles above 5600 MT/s are enabled through BIOS with Ryzen 9000 series.

Which M.2 slot gives PCIe 5.0 x4 speeds for a boot drive and does it share bandwidth with other slots?

M.2_1 runs PCIe 5.0 x4 with Ryzen 9000 and 7000 CPUs. PCIEX16(G4)_1 shares bandwidth with M.2_2, so using M.2_2 disables that x1 slot.

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