I'm choosing a CPU for a gaming PC with a Radeon RX 9070 XT, mainly playing at 1440p or 4K. The Ryzen 7 7700 costs over AUD $100 less than the 7800X3D, while the Ryzen 7 9700X is another option. In the benchmarks I've watched, all three perform very similarly with the GPU I'm planning to use. Is the 7800X3D worth paying extra for, or would the 7700 or 9700X make more sense for this build?
4 Answers
The 9700X is a good middle ground if you also do productivity work. It has strong general performance and good efficiency, but for a gaming-focused build its advantage over the 7700 may be small, especially at 1440p and 4K. I’d choose it only if the price is close to the 7700 or you’ll use the PC for heavier non-gaming workloads.
For mostly AAA games at 1440p or 4K, I’d save the money and get the Ryzen 7 7700. At those resolutions the GPU will usually be the limiting factor, so the 7800X3D may not provide a noticeable improvement. The X3D chip makes more sense for competitive games, very high refresh rates, or CPU-heavy titles where better 1% lows and smoother frame delivery matter.
I’m planning to use the RX 9070 XT and mostly play at 1440p or 4K, so that sounds like the cheaper CPU could be enough.
If you want the best gaming performance and the price difference isn’t a problem, the 7800X3D is the safer choice. Its extra cache can help in esports and CPU-limited games, and it generally delivers better lows. But it isn’t automatically worth over AUD $100 more when you’re playing graphically demanding games at 1440p or 4K.
Don’t overlook cheaper options if you’re trying to maximize value. A Ryzen 7 7700, or even a Ryzen 5 7500F or 9600 if available at a good price, can leave more of the budget for the graphics card. With an RX 9070 XT at 1440p or 4K, putting the savings toward other components may have a bigger impact than moving from a 7700 to a 7800X3D.

The regular 7700 is also a 65W processor, so the power and temperature difference alone isn’t a strong reason to upgrade to the 9700X.