Setsul1. I'm not sure if TF2 and Gmod are even on the same Source Branch right now. TF2 is now 2013 MP iirc.
2. Valve would definitely not implement it in TF2.
3. This is not something new. This is exactly the same Source multithreading TF2 already uses. It was disabled in Gmod until now because it caused crashes.
tl;dr
We already got this years ago. Spoiler: It's shit.
I don't understand your contradictory statements, 2 says it defenitely won't be implemented and 3 says we already have it.
I have to disagree with 3 because we do most likely NOT have the same implementation for the TF2 Source engine, we (presumably) have the one that Gmod used to have prior to the afformentioned July update.
Regarding the different Source Branches, would it be that hard to move to a different branch if that is needed for multicore rendering to be implemented in a semi effective way?
And why would Valve defenitely not do it?
The point of my post was not to try and announce this as a new technology, but rather show that a game built on the same engine and of somewhat comparable age managed to get a proper implementation of multicore rendering that significantly improved performance.
I was just wondering how big the improvement one could expect and how likely/hard an official implementation for TF2 would be.