Ryzen 9 3900XT
12 cores · 24 threads · up to 4.7 GHz on AM4.
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Performance breakdown
Lab scores
Estimated gaming FPS
Paired with a high-end GPU. CPU impact is largest at 1080p.
Full specifications
- Base clock
- 3.8 GHz
- Boost clock
- 4.7 GHz
- L1 cache
- 768 KB
- L2 cache
- 6 MB
- L3 cache
- 64 MB
- Memory support
- DDR4-3200
- Max capacity
- 128 GB
- Channels
- 2
- Max bandwidth
- 51.196 GB/s
- Base power (TDP)
- 105W
- Max temperature
- 95°C
- PCIe
- PCIe 4.0
- Launch price
- $499
- Extensions
- AES-NI, AVX, AMD-V, Precision Boost 2
What Owners Say
Owners love the raw multi-core muscle for heavy workloads without breaking the bank. The common gripe is that it runs hotter than expected, needing a better cooler than the stock one.
- Twelve cores handle heavy multitasking easily
- Stays cool under sustained full loads
- Gaming performance feels instant and fluid
- Compatible with older AM4 motherboards
- Worse value than the 3900X
- Needs a stronger cooler than stock
- Zen 3 made it obsolete fast
Our verdict on the Ryzen 9 3900XT
A twelve-core, twenty-four-thread desktop processor that trades efficiency for slightly higher boost clocks with no real-world benefit.
Get it if you need a high-core-count CPU for multithreaded work like video rendering or compiling, and you're on a tight budget for a used AM4 upgrade. Skip it if you're building new or gaming—newer chips offer better single-core speed for less money and power.
Buy it if…
- You want a fast 12-core chip for heavy multitasking.
- You’re building a high-end AM4 gaming and streaming rig.
- You need a strong CPU for video editing or 3D rendering.
Its place in the overall top
39 votes