How many FPS do Intel Core i7-11700K and AMD Radeon 780M (iGPU) manage in Counter-Strike 2 at 1440p and high settings?
An estimated 16 FPS in Counter-Strike 2 at 1440p and high settings. In more demanding titles such as Cyberpunk 2077 it is closer to 9 FPS. Both are model calculations, not measurements.
Is the Intel Core i7-11700K + AMD Radeon 780M (iGPU) combination enough for 1440p?
For 1440p this combination sits at the entry level. In demanding games you will need to reduce detail or use upscaling such as DLSS or FSR. Balanced for 1440p. The graphics card is the narrower side, and at this resolution that is how it should be: more pixels load the card, not the processor. Your processor keeps headroom (96 % apart), which is why the frame rate stays steady in busy scenes. Upgrading pays off here. At around 16 frames, one step already moves you into the next band.
Does one part hold back the others in Intel Core i7-11700K + AMD Radeon 780M (iGPU)?
Balanced for 1440p. The graphics card is the narrower side, and at this resolution that is how it should be: more pixels load the card, not the processor. Your processor keeps headroom (96 % apart), which is why the frame rate stays steady in busy scenes. Upgrading pays off here. At around 16 frames, one step already moves you into the next band.
Is an upgrade worth it?
The next step that makes sense by the model would be NVIDIA GTX 1650. Concrete suggestions with price and cost per FPS come from the buying advice in the Performance Hub.