What gaming PC offers the best value for demanding 1440p/120Hz AAA games?

You could also choose an Nvidia RTX 5080 if ray tracing and Nvidia-specific features are especially important. It would fit within the budget and provide stronger ray-tracing performance, but it costs substantially more than the RX 9070 XT without delivering a proportional increase in ordinary 1440p performance. For a sensible price-to-performance build, the AMD option is likely the better choice; the Nvidia card makes more sense if you specifically prioritize ray tracing over value.

For the best value, a system built around a Ryzen 7 9800X3D and Radeon RX 9070 XT would be more than capable for 1440p gaming at 120 Hz. The 9070 XT offers excellent performance without the huge price premium of higher-end Nvidia cards. Nvidia still has an advantage in ray tracing, but the current AMD generation is capable enough for many games. A quality power supply, fast SSD, and strong cooling would round out the build, while the remaining budget could go toward additional storage or 48–64 GB of memory if you plan to multitask or stream. A €6,000 budget is far beyond what is necessary for this target resolution and refresh rate.

You don’t need to spend anywhere near €6,000 to meet these goals. A roughly €2,500 gaming PC should already handle 1440p at over 120 FPS in many games, depending on settings and optimization. The extra money might be better spent on a higher-refresh OLED monitor, such as a 280 Hz or 360 Hz model, or simply saved for a future upgrade. Even extremely powerful hardware cannot completely overcome poor optimization in newly released games, so occasional dips may still require patches from the developers.