This guy has it backwards. Actually, it's more about tuning DOWN for the PC. Adding lower graphics settings, supporting cards and hardware/OS combinations that lack certain features, testing on all that to make sure it's still playable. Optimising UP will be rare, because the market is so small as to not be worth it.
Because most people still have really bad graphics cards.
The most successful game companies are those that allow play on weak computers - Valve, Blizzard, Riot, EA (Sims/Simcity)







