Loopring
Type
Chain-agnostic, L2 protcol based on zkRollups
Tx Cost
450 gas (~$0.0002 on Ethereum as of 2021/01/14)
Finality
Apparently immediate (off-chain), later verified on-chain
Consensus
zkRollup
$ Efficient
More capital efficient than main alternatives as long as off-chain cloud compute is cheaper than on-chain transactions (see table 1 here)
Max TPS
2,025 with OCDA; 16,400 without