I think it depends on your resolution, at 4k it would be largely ok although it will still bottleneck some titles, if your running 1440p or 4k with DLSS then that would bottleneck a lot more.I have a LGA 1200 Socket Motherboard with an 11900k CPU. According to benchmark tests a Nivida RTX 4090 would be bottlenecked by a 11900k more then 20% running at stock speed however I was wonder whether overclocking the CPU and member would help in improving the performance of the 4090?
If you use the MSI afterburner OSD you can see the percentage of the GPU being utilised so this lets you know how much bottleneck you have by how far under the 99% utilisation you are.
You can use DLDSR to remove bottleneck, this won’t improve FPS but will improve image quality so atleast you can leverage your gpu to the full.
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