Not 100% on this…
If you have a fast SSD and able to put it on the bus at 4x or at least the 1x - m.2 …
I am using my i5 10400 630 gpu onboard.
I have 16GB of 2666 memory.
I can do shadowlands at 15 fps 4k …
That is 8.2 GB memory/21GB memory committed. It is burry when you turn…if you want that effect 4/3/3 50% /90 fov , so 45. I like 45% UI at 1920x1080 60p on a 32" 4k tv…HDMI … My SSD is 512GB with page file 3200 r/w on my 16x slot at x4…
I have windows also use the drive for the vertual memory. My system allows half of my memory for the GPU part of the chip…
Mine is the 45 watt, but a higher wattage will be a better player value…per usage.