Vegeta could see Initial 4th Form Freeza's movements even before the filler power-up, so it does make the numbers bigger in the anime.The filler power up doesn't affect his actual power. He is just unleashing what he had.
This level of power doesn't differentiate from the manga.
Freeza 5,000,000
Vegeta 4,500,000
3rd Form Freeza 2,500,000
Nah, that won't work. He's still inferior to Freeza post power up, so you'd have to work backwards with that.Vegeta could see Initial 4th Form Freeza's movements even before the filler power-up, so it does make the numbers bigger in the anime.