Ryzen 9 3900X vs Ryzen 5 5600GT
Compare the Ryzen 9 3900X and Ryzen 5 5600GT 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 5600GT is the better value, though the Ryzen 9 3900X is the faster gaming chip.
- Ryzen 9 3900X is about 7% faster for gaming at 1080p (gaming index 42.0 vs 39.4).
- Ryzen 9 3900X is roughly 49% faster in multi-core work, an edge in rendering, encoding and compiling.
- Ryzen 5 5600GT is the cheaper chip right now, by roughly 13%.
- Ryzen 5 5600GT delivers about 6% more gaming performance per dollar.
- Ryzen 9 3900X has more cores (12C/24T vs 6C/12T), which helps in heavily threaded workloads.
- Ryzen 5 5600GT 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 5600GT gives about 6% more gaming performance per dollar at today’s prices.
Full platform cost
A complete-platform price needs a live CPU price and an in-stock compatible motherboard on both sides. We can’t build one for Ryzen 9 3900X and Ryzen 5 5600GT right now, which is common for older sockets like AM4 where we don’t track current boards. The gaming, value and specs comparisons still apply.
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 5600GTfrom $176.46
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | — | See on Amazon |  |
Ryzen 9 3900Xfrom $199.00
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Newegg | In stock | $199.00 |  |
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