The connecting record
shownDragon Ball (manga)
Piccolo killed Raditz in Dragon Ball (manga).
The Special Beam Cannon went through Raditz and the Goku holding him from behind, mortally wounding both. Once he had heard enough, Piccolo finished off the dying Raditz; Goku died shortly after.
What each of them is ranked on
The killer · Piccolo · rank 17
Orange — films · manga
Thirty years of being written past, then a film hands him a new form and an actual result. His placement is a version question in the plainest terms: on the strength of the 1990s material he belongs several tiers lower, and on the strength of one 2022 film he does not.
shownDragon Ball Super: Super Hero · 2022
Takes the Orange form and fights Cell Max.
The victim · Raditz · rank 18
The first number — anime · manga
Comfortably the weakest entry here and the reason the page exists. He brings the scouter into the story, reads two figures off it aloud, and establishes in one scene that power in this world is a measurable quantity — the premise every ranking argument since has inherited. His own figure is then the first demonstration of the problem: two numbers compete for him, and they come from different places. The lower one is derivable from dialogue in the story; the higher one, the one usually quoted, exists only in a guidebook. The very first power level in the franchise is already a disagreement between a panel and a book.
shownDragon Ball Z · Saiyan Saga
Uses a scouter to read the power levels of Goku and Piccolo aloud. — 1989
shownDragon Ball Z · Saiyan Saga
Killed by Piccolo's attack while Goku restrains him. — 1989
What this does not settle
One death in one work. It is the only place the record puts these two in the same room, and it is evidence about that meeting and nothing wider — not a general matchup, not a rematch, and not a ranking of its own.
The ladder above it is argued from everything either of them has been shown doing; this page is argued from one citation.
Where the two disagree, the disagreement is the point, and it stays visible rather than being resolved by whichever of them happens to be on this page.