Photoshop Filters are found in themenu in Photoshop. The graph below shows how much the CPU cores and GPU are used for those filters.
The only filter with any meaningful use case for me (and probably most photographers) is the Sharpen filter.
In other words, a faster GPU does almost nothing for most users except for sharpening. And even when the GPU is used the most, its utilization is no more than about 1/3 of the GPU potential even as the CPU cores are also used substantially. In the context of the total operation time, it is doubtful that a faster GPU versus the base GPU option has more than minimal value. Unless of course you’re doing Oil Paint, Emboss, Liquify and a lot of sharpening many times a day.