Any gpu with 1 teraflops single precision or more theoretical performance is enough for supcom graphics.
That goes back a decade or more. For example first cards to achieve this were Radeon 4850 and gtx 470.
Regarding integrated graphics most APUs today do pack about 1 teraflops of performance in their gpu, but I would not lose my sleep over them, because they are usually found in expensive packages (more expensive than some decent gaming laptops). And I would not pay more to get some shiny surfaces and good for nothing substance.
Regarding CPUs, any cpu with single core geekbench score of about 400 is good enough for most 1v1 scenarios, with the exception of 20x20 or bigger maps(which is depressing if you think how much silicon is wasted in modern smartphones). Any cpu with single core geekbench score of about 1000 will get you through almost all scenarios,
except the "epic" games of 12v12 players on 81x81 maps. I guess from this viewpoint SupCom is still not played optimally, though latest Alder Lakes should be good enough for a full blown Seton's without a hitch.
PS. And yes , I am old enough to have seen bans on people trying to play Seton's if their cpu did not have a GB score of 400, which was considered to be awesome, getting bans when the demand became 500 , 600 and so on. All these years no-one acknowledging the fact that they did not actually have a Seton's capable cpu