ASUS Prime X399-A is the EATX motherboard that's been expertly engineered for professional content creators and power users who work hard by day and play harder by night. This powerful, innovative board puts a friendly face on advanced enthusiast controls, enabling you to maximize performance, cooling and personalization with ease. So, if you live to create, explore, and to push the boundaries, look no further than the Prime X399-A.


One click takes care of all that complex tuning. ASUS 5-Way Optimization makes your PC smart. It dynamically optimizes essential aspects of the system, providing overclocking and cooling profiles that are tailored for your rig.

  • An automated tuning utility that optimizes overclocking and cooling profiles for your unique system configuration.
  • Fans stay whisper-quiet for everyday computing, and deliver optimal airflow when the system is crunching through CPU or GPU-intensive tasks.
  • All-new stress test that allows users to optimize and overclock for CPU or memory-centric workloads.


Prime X399-A is engineered to support quad-channel memory kits rated up to a staggering DDR4 3600MHz, allowing you to get the best performance from the X399 platform. We've worked with all major DDR4 memory vendors to help ensure compatibility, so you're assured the best compatibility.


A dedicated base-clock generator that extends CPU and memory overclocking margins. This custom solution works in tandem with the TPU to enhance voltage and base-clock overclocking control, providing the flexibility to extract every ounce of performance from Ryzen™ Threadripper™ processors

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MBMODEL overclocking records

Benchmark Worldrecord Links
Reference Frequency Hong Kong 100 MHz (2.5pts) Rankings

PRIME X399-A used in other benchmarks

Benchmark Worldrecord Links
CPU Frequency United States 4165.37 mhz (0.4pts) Rankings
wPrime - 32m Iran 2sec 623ms (0.2pts) Rankings
wPrime - 1024m Iran 43sec 5ms (5.2pts) Rankings
3DMark - Fire Strike Finland 22025 marks (0.2pts) Rankings
PCMark10 Hong Kong 5404 marks (0pts) Rankings
3DMark - Time Spy Finland 10320 marks (1.5pts) Rankings
Cinebench - 2003 Finland 4117 points (0.5pts) Rankings
Cinebench - R11.5 Iran 34.54 points (0.2pts) Rankings
Cinebench - R15 United States 6024 cb (0.2pts) Rankings
HWBOT x265 Benchmark - 1080p Iran 73.2 fps (0.5pts) Rankings
HWBOT x265 Benchmark - 4k Hong Kong 20.085 fps (3.1pts) Rankings
y-cruncher - Pi-25m Hong Kong 0sec 650ms (0pts) Rankings
y-cruncher - Pi-1b Hong Kong 36sec 375ms (0pts) Rankings
y-cruncher - Pi-10b Hong Kong 8min 18sec 381ms (0pts) Rankings
HWBOT Prime Iran 8558.24 pps (0pts) Rankings
Geekbench3 - Multi Core Iran 60324 points (0.5pts) Rankings
Geekbench3 - Single Core Iran 4447 points (0pts) Rankings
HEVC h.265 Decode Finland 1641 marks (0pts) Rankings
Geekbench4 - Single Core United States 4615 points (0.9pts) Rankings
Geekbench4 - Multi Core United States 24612 points (0pts) Rankings