Why are we still seeing 1080p benchmarks in 2024?
1080ti was the bottleneck, replaced by 2080ti and 3090ti and 4090… each generation the gpu became more “transparent”, “less opaque” to the data presented to it. More data can pass through it.
Processors behave similarly generation on generation. (No preference, not necessarily the fastest, just easier to type)
1800x, 2700x, 3700x, 5800x, 7700x, 9700x
To benchmark the processor:
If you pair each of the processors with a 1080ti at 1080p there will be an increase in frames rendered to (for example) 3700x at which time the GPU is saturated, testing at 1440p or 4k is pointless. The gpu can’t render more frames.
Switching up to a 3090ti more frames can be rendered, none of the listed CPUs is likely to saturate the GPU at 1080p so you would see increasing frame rates as the processor generations are tested in order. 4090 would be further from being saturated.
1440p you are loading the GPU more, the 1080ti and 2080ti will begin to struggle before the newer processors bottleneck and at 4k even the mighty 4090 will be bottlenecking with the newer processors.
At 4k you might see some processor scaling but the faster, newer processors will show the same frame rates within a few percent as the GPU cannot do more work.
CPU tests are conducted at 1080p to demonstrate CPU scaling. That resolution is reasonably easy for the GPU. Using the fastest GPU means that the GPU is not the restriction in the tests. Any scaling seen is likely to be due to CPU scaling.
1080p is still prevalent in the Steam surveys and is still relevant due to this.