[mihaifm]

I've had concerns in this area as well, as far as I know the team performed some stress tests and the network can do 100+ transactions per second, maybe more. There is also a small computation that the hardware needs to perform before sending the transaction, which is only a small guard against spam but pretty useful.

[akerro]

afair peak of stress test on main network was >300TPS, on test network is was >1500TPS. there exists dedicated software to create wallets and transaction using GPU, just for stress testing.