Lol what? Both have instant teleportation yet only Minato was praised for his speed throughout the series because Tobirama had no appearances where he was at full power. He was praised as the fastest because the only person they had extensive knowledge on was Minato. Naruto's first response to Tobirama's Hiraishin was that he's copying Minato, even though Tobirama invented it. Meaning Naruto had no idea that Tobirama invented Hiraishin nor did he know that he had it. So your comparison is ridiculous and makes no sense.Both have instant teleportation yet only one of them was praised for his speed through out the series, there's clearly a difference between the two.
-Both have Hiraishin.
-Both have shown exceptional speed feats (tobirama's are better but all you guys do is give me this cop out argument "we don't know if he could've done it)
-Both were called the fastest shinobi during their respective eras, which were decades apart.
Now, I'll just wait for you or any Minato fan to show me the scans where Minato was portrayed to be faster than Tobirama in every way, or I'll wait for you guys to provide feats that show Tobirama>Minato in all relevant areas of speed.