Chapter: 345 (DBZ 151), P6.1-2
Context: after Vegeta scares No.20 away with a bluff
Piccolo: “He really had lost a lot of stamina…when he confirmed that the androids sucked out energy with the palms of their hands…He ought to have lost if he had fought that No.20 guy…But he talked as if he still had something up his sleeve…Vegeta really is a fighting genius…He might have sur-surpassed…Goku…
Chapter: 348 (DBZ 154), P5.5
Context: after Vegeta leaves to fight No.17 and No.18
Piccolo: “…But…It seems that Vegeta really has obtained power surpassing Goku now that he’s become a Super Saiyan…He just might be able to take care of them like he says…”
The fact that it still needed further confirmation tells me that they should be pretty close. 93/100 is a noticeable gap.