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ASUS PRIME B650M-R micro-ATX motherboard with Ryzen 7 9800X3D CPU installed

ASUS

ASUS PRIME B650M-R AMD Motherboard & Ryzen 7 9800X3D CPU Combo

SKU CH-TJM7-MBP6N

This motherboard and CPU combo pairs an AM5 micro-ATX board with PCIe 4.0, two M.2 slots, 2.5Gb Ethernet and USB 5Gbps Type-C with an 8-core, 16-thread Ryzen 7 9800X3D reaching 5.2 GHz boost.

  • CPU socketAM5

Model PRIME B650M-R

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CPU +Ryzen 7 9800X3D

  • Ready for advanced AI workloads with power and connectivity built for demanding AI applications
  • Ultrafast connectivity via PCIe 4.0, two M.2 slots, Realtek 2.5Gb Ethernet, USB 5Gbps ports and front USB 5Gbps Type-C
  • Comprehensive cooling from VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2+
  • Aura Sync RGB lighting with onboard Addressable Gen 2 headers for easy sync with compatible hardware
  • Two-way AI Noise Cancelation reduces background noise from microphone and audio output for crystal-clear communication

Ready AM5 Platform for AI and Gaming

This bundle pairs the ASUS PRIME B650M-R motherboard with the Ryzen 7 9800X3D processor on the AM5 socket. The 8-core, 16-thread CPU reaches a 5.2 GHz max boost and includes 96MB L3 cache plus 8MB L2 cache. The board delivers PCIe 4.0 lanes, two M.2 slots, Realtek 2.5Gb Ethernet and USB 5Gbps Type-C connectivity. It targets builders who want a compact Micro-ATX foundation for advanced AI workloads and high-frame-rate gaming.

Thermals and Power in Daily Use

The motherboard uses a VRM heatsink and PCH heatsink alongside hybrid fan headers managed by Fan Xpert 2+ to regulate component temperatures. The Ryzen 7 9800X3D operates within its rated thermal envelope during typical gaming and productivity sessions. Acoustic output stays low under standard loads thanks to the board's automated fan curves. Power draw scales with the CPU's unlocked design and DDR5-5600 memory support.

Bundled Software and Lighting Control

Aura Sync ties addressable Gen 2 RGB headers to compatible strips and peripherals for unified lighting effects. Two-way AI Noise Cancelation filters background sound from both microphone input and audio output, improving clarity in games and video calls. Fan Xpert 2+ provides a graphical interface to customise cooling profiles without third-party tools. These features work together out of the box on the supported platform.

How it compares

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

Price $678.99
Pricier than about 73% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model namePRIME B650M-R+R7 9800 × 3D
Processor
CPU socketAM5

Other versions of this model

5 more in the same range

Questions about this item

Will the 96 MB L3 cache on the Ryzen 7 9800X3D improve frame rates in CPU-bound games?

The 96 MB L3 cache reduces latency by keeping more game data on-die, which typically raises 1 % lows and average frame rates in CPU-bound titles.

Does the PRIME B650M-R include a 2.5 Gb Ethernet port for faster wired networking?

Yes, the board ships with a Realtek 2.5 Gb Ethernet controller for higher throughput than standard gigabit.

What DDR5 speed does the Ryzen 7 9800X3D officially support without manual tuning?

The processor is rated for DDR5-5600 out of the box; higher speeds require memory overclocking.

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