I had to update myself after the Eclipse and Nourish changes, but here are the numbers:

Roar: 1 + 0.3*strength faction multiplier (double dips on status and rehits like Xata and Toxic Lash)

Eclipse: 1 + 0.3*strength Eclipse multiplier

Sentient Wrath: 1 + 0.35*strength Damage Vulnerability, double dips status, multiplicative to Faction

Rage: 1 + 0.5*strength Damage Vulnerability, small targeted AoE however.

Xata’s Whisper: 1 + 0.26*strength Void damage. Double dips off various things. Xata Ivara is still the heaviest* damage buffer in the game because of this.

Nourish: 1 + 0.45*strength added Viral mod. Viral component is halved vs Deimos grey strain infested and all Labs enemies, but the viral status effect remains full strength.

Shock Trooper, Smite Infusion: 1 + 1*strength added elemental mod

Thermal Transfer: 1 + 0.75*strength added elemental mod (twice over if doing Blast? Haven’t labbed it)

Tharros Strike, Flame Blast, Seeking Shuriken: depends on armour, but 5x~50x is not unreasonable, worth more the more armour the enemy has. Worth less if you’re running Unairu.

Wrathful Advance: 1 + 1*strength absolute crit chance, only for melee incarnons.

Grouping abilities: don’t count these out. Coil Horizon is massive, but Ensnare lets you easily charge Incarnon form, and the chaining property increases its range beyond what it seems at first blush.

Nourish reigns supreme, basically. Sentient Wrath is stronger than Roar, and the target cap is immaterial if you’re running strength, but you have to wait for the waves to reach the targets. Thermal Transfer is excellent due to being able to select the element you imbue. Xata is the winner if you’re a stealth melee build due to still double dipping on Stealth Multiplier.

*Banshee is stronger if you’re a gambling Tenno, since a double Sonar is the highest possible bonus at any level of strength over 100%, but Ivara wins if you don’t consider RNG. Total Ecliple/Hall of Malevolence Mirage wins at extremely high levels of strength, but Ivara wins up until like 325%.

I don’t play a whole lot of Gauss, but he’s a really well-rounded frame. Unlike a lot of other buff jugglers, you’re incentivised to stack Duration heavily as it scales his Redline (and not Strength, confusingly).

So, what makes Gauss so well-rounded?

With Mach Crash, he has a reasonably large grouping ability. Kinetic Plating guards against the important Blast damage type, although leaves you open to Electric, Toxin and Mag. Thermal Sunder provides fullstrip, as well as an Expedite Suffering effect for Heat (by converting it to Blast). Redline massively increases your DPS and overall QoL, being one of the few reload buffs in the game.

I’m glad Gauss finally has a Prime release. He’s an excellent newbie frame, albeit hidden behind the scary and confusing Disruption game mode. His signature weapons are also really popular, and coming in with shiny Prime buffs is going to put them in the hands of people still transitioning to Adversary weapons or who are pre-Incarnon.