Quick Comparison
| Product | Best For | Est. Price | Rating |
|---|---|---|---|
| AMD Ryzen 7 5800X3D | Best Overall | ~$299-349 | 4.7/5 |
| AMD Ryzen 5 5600 | Best Budget | ~$129-159 | 4.6/5 |
| AMD Ryzen 9 5950X | Best Premium | ~$399-499 | 4.7/5 |
| AMD Ryzen 7 5800X | Best for Gaming | ~$229-279 | 4.5/5 |
| AMD Ryzen 5 5600X | Best Compact Build | ~$149-189 | 4.6/5 |
Intro
When AMD launched the Ryzen platform in 2017, X370 was the flagship chipset. the board you bought if you wanted the best overclocking features, the most USB and SATA ports, and multi-GPU support from day one. In 2026, X370 boards continue to power capable systems thanks to AMD’s extraordinary commitment to AM4 socket longevity.
The right CPU choice for an X370 board depends on your BIOS version, your board model, and whether your manufacturer released Ryzen 5000 support. Even without Ryzen 5000, the Ryzen 3000 family represents a massive performance leap over the original first-gen Ryzen chips and remains fully supported across all X370 hardware. This guide covers the five best CPUs to pair with your X370 motherboard in 2026.
Top 5 Picks
1. AMD Ryzen 5 3600. The definitive X370 upgrade chip. Six Zen 2 cores, a 4.2 GHz boost clock, DDR4-3200 support, and a 65W TDP fit perfectly within X370’s power delivery capabilities. It is universally supported on all X370 boards with a simple BIOS update and delivers gaming and productivity performance that remains competitive in 2026 at prices that have dropped significantly.
2. AMD Ryzen 7 3700X. Eight Zen 2 cores for X370 users who need more multi-threaded headroom. The 3700X’s 65W TDP is gentle on X370 VRM hardware, making it safe to run on boards that might struggle with the 105W 3800X under sustained load. Strong performance in both gaming and workstation tasks, with excellent thermals.
3. AMD Ryzen 5 5600. For X370 boards with verified Ryzen 5000 BIOS support, the 5600 is the best available upgrade. Six Zen 3 cores deliver a substantial IPC improvement over Zen 2, pushing gaming frame rates and single-threaded application performance noticeably higher. Verify your board’s support list before purchasing.
4. AMD Ryzen 7 5700X. Eight Zen 3 cores for X370 boards confirmed to support Ryzen 5000. The 5700X’s 65W TDP keeps it within the power delivery comfort zone of most X370 boards. If your board supports it, this chip represents the maximum practical performance the AM4 platform can offer without exceeding typical X370 power delivery limits.
5. AMD Ryzen 5 3500X. A six-core budget option for X370 users who need a reliable upgrade from first-gen Ryzen without spending much. The 3500X is widely available on the used market at low prices and provides a meaningful performance boost over original Ryzen 1600 and 1700 chips with guaranteed X370 compatibility.
What to Look For
BIOS compatibility first. Before buying any CPU for an X370 board, visit your motherboard manufacturer’s website and check the CPU support list for your specific model. First-gen Ryzen requires no update; Ryzen 2000 and 3000 need a BIOS update; Ryzen 5000 requires unofficial support that may or may not be available.
VRM capacity. X370 boards vary significantly in power delivery quality. For chips above 95W TDP, check that your board’s VRM is rated accordingly. Most X370 boards handle 65W chips without issue, but 105W Ryzen 9 chips are risky on lighter boards.
DDR4 memory speed. Zen 2 and Zen 3 architectures perform best with DDR4-3600 memory. X370 boards can often reach these speeds with appropriate XMP profiles, though stability varies by board and memory kit. DDR4-3200 is a safe baseline for X370 with any Ryzen 3000 processor.
PCIe 3.0 limitation. X370 supports PCIe 3.0 only, regardless of which CPU you install. NVMe drives and GPUs run at PCIe 3.0 speeds. This is not a bottleneck for most workloads but is worth noting if you plan to use a PCIe 4.0 NVMe drive for its full bandwidth.
Final Thoughts
The AMD Ryzen 5 3600 is the most reliable, broadly supported upgrade for X370 boards in 2026. Its universal compatibility, manageable TDP, and strong performance make it the safest recommendation for the widest range of X370 hardware. Users with confirmed Ryzen 5000 BIOS support should strongly consider the Ryzen 5 5600 for the Zen 3 IPC improvement.
The X370 platform has aged gracefully thanks to AMD’s socket commitment. A Ryzen 3000 or 5000 upgrade breathes years of additional useful life into your board without requiring an expensive platform change.
Frequently asked questions
Does X370 support Ryzen 5000 CPUs?+
Some X370 boards received BIOS updates to support Ryzen 5000 CPUs, but support varies by manufacturer and specific board model. ASUS, MSI, Gigabyte, and ASRock released unofficial or limited BIOS updates for select X370 boards. Check your board manufacturer's support page carefully, as not all X370 boards received these updates, and BIOS file size limitations may prevent Ryzen 5000 support on some models.
Is X370 compatible with Ryzen 3000 processors?+
Yes, fully. X370 officially supports AMD Ryzen 1000, 2000, and 3000 series processors out of the box after a BIOS update. Ryzen 3000 chips like the Ryzen 5 3600 and Ryzen 7 3700X are the recommended upgrade path for most X370 board owners, as support is guaranteed and performance uplift over first-gen Ryzen is significant.
Can I overclock on X370?+
Yes. X370 was AMD's enthusiast chipset at launch and supports full CPU and memory overclocking. All Ryzen processors are unlocked multiplier chips, and X370 boards from major vendors include robust VRM designs suitable for moderate overclocking. Memory overclocking to DDR4-3200 or 3600 is achievable on most X370 boards and provides a noticeable performance boost.