Silver Galactus Vs Thanos With IG

silver galactus is a galactus silver surfer amalgam and is much more powerful

Thanos

Last Planet Standing Galactus after performing the fusion dance with Silver Surfer.

Thanos.

thanos

Even with a power up, Silver Galactus shouldn't be stronger than the IG.

SS is a fraction of Galactus's power. How is it that Galactus going silver is a powerup?

Wasn't that from last planet standing?And LPT galactus was shown to be >LT right?So why wouldn't that even more powerful galactus be>Thanos?

Thanos