Question Rx6600/xt on B350 board, how much performance loss?

[721831101]

If I plan to game on 1080p 144Hz on AAA titles

So b350 dont support pcie4.0 and 6600 only has 8 lanes
That makes gpu running on pcie x8 only, is this a big issue?

 

[Koekieezz]

shouldn't be a big issue. ofc bandwith bottleneck would be there but not that much, knowing that even a x16 gpu bandwith not utilized to the fuelest for mid range cards. 3.0 x8 = 4.0 x4 in terms of max speed.