Ryzen 5 5600X vs Ryzen 9 3900X
Compare the Ryzen 5 5600X and Ryzen 9 3900X on real gaming and productivity benchmarks, full specifications, live retailer prices and performance-per-dollar, then jump straight to the cheapest in-stock option.
The short answer
The Ryzen 5 5600X is the better buy here: it's both faster for gaming and gives more performance per dollar.
- Ryzen 5 5600X is about 28% faster for gaming at 1080p (gaming index 53.7 vs 42.0).
- Ryzen 9 3900X is roughly 29% faster in multi-core work, an edge in rendering, encoding and compiling.
- Ryzen 5 5600X is the cheaper chip right now, by roughly 10%.
- Ryzen 5 5600X delivers about 41% more gaming performance per dollar.
- Ryzen 9 3900X has more cores (12C/24T vs 6C/12T), which helps in heavily threaded workloads.
- Ryzen 5 5600X has a lower TDP (65W vs 105W), so it runs cooler and is easier to cool quietly.
Gaming performance
CPU-bound gaming score: a geometric mean of in-game frame rates at 1080p, normalized so the fastest gaming CPU we track = 100.
Does the CPU matter at 1440p or 4K? Much less. At higher resolutions the graphics card sets the frame rate, so the gap between two CPUs shrinks — often to nothing. The 1080p figure above is the demanding case, where the CPU is stressed and the difference actually shows.
Performance per dollar
Gaming index divided by the current lowest price — higher is better value. This moves with the market as prices change day to day.
The Ryzen 5 5600X gives about 41% more gaming performance per dollar at today’s prices.
Full platform cost
A CPU’s real cost includes the cheapest in-stock motherboard that can run it and, when the chip doesn’t bundle one, a cooler that can handle it. Here is the lowest-priced complete platform for each, and the gaming performance you get per platform dollar.
- Platform total
- $233.58
- Platform total
- $251.50
Cheapest complete platform (lower is better)
Gaming performance per platform dollar (higher is better)
Specs head-to-head
Productivity & compute
Efficiency
Gaming performance per watt (gaming index per 100W of TDP) — higher means more frames for the heat and power.
Where to buy
Ryzen 5 5600Xfrom $149.99 (OEM / tray)
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| NeweggOEM / tray | In stock | $149.99 |  |
| Amazon | In stock | $168.99 |  |
| Newegg | In stock | $178.00 | |
OEM / tray is the bare processor: no retail box and no cooler in the package, and the warranty is handled by the seller. The chip itself is the same.
Ryzen 9 3900Xfrom $164.92 (OEM / tray)
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| NeweggOEM / tray | In stock | $164.92 | |
OEM / tray is the bare processor: no retail box and no cooler in the package, and the warranty is handled by the seller. The chip itself is the same.
More comparisons
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