Yeah, that tends to be how things work. Feed it more power and you get more performance - except in the case of AMD - since AMD has ultra binned ever single little slice of silicon, and offers it's pre over clocked. Along with that extra power comes extra heat - that is why it has a setting in BIOS to allow you to keep the 80W TDP or the 135W.
Nvidia is is no way shape or form concerned about whatever marketing term AMD is using to describe whatever warmed over ancient design they are selling this week. It just isn't an issue. AMD has about as much chance taking over the discrete GPU for laptops as it does becoming the top tier full size GPU vendor. "Big Massive Totally New and Shiny Look! Squirrel Navi" is vaporware and likely to remain as such - they will undoubtedly release something with better perf - but no where near where the AMD Kiddies think it it be.
Thing about AMD is they get things flipped - You under promise and over deliver - not over promise and under deliver - which is the history of the Ryzen line Because by now AMD should have 80% market share and Intel begging for scraps - yet that hasn't happened. Ryzen 1 (1x00 series) had the most impact, the subsequent 2 small iterative updates - not so much. Even though AMD is hitting record revenues (for AMD) it is still really nothing and R&D requires something in excess of nothing. Jim Keller's legacy at AMD (creator of Ryzen) is already in the market - they have nothing left to draw from. The changes between 1st gen Ryzen and most current in the market Ryzen is really not much at all. I know all the armchair lithography and CPU fabrication experts will say but but but "7nm"... turns out not that big of a deal. Not making money is why they spun off Global Foundries - and why they sold Ryzen designs to the Chinese - to keep the lights on while Ryzen was prepped to take over the world... a swing and a miss. I mean if Intel was in 1/10th the amount of trouble the AMD Kiddies think - then it should have been EZ Mode to fill in that gap - yet - no gap filled.
Having a CPU with no integrated graphics (even rudimentary) with a bunch of superfluous cores (reason why Intel was at 4 cores for desktop - that's what the market wanted) is why OEMs are not selling alot of AMD systems - having to add a graphics card (another line item in the BoM) but the added load on the Support and IT depts was part of the consideration for alot of companies to stick with Intel - install the chipset drivers and you are good to go.
The new 4x00 series APUs are great... Vast majority of businesses want basic Desktops - something to run Word, Excel, Outlook and Chrome. Don't need 8 cores and Vega graphics (still takes a sep driver)to do that.
So no Nvidia isn't worried, Intel is not worried - The one indispensable service AMD provides to both Nvidia and Intel is to shut down ppl wanting to say they are a monopoly in their respective fields. Kinda like how a Morty is a shield for a Rick. Advanced Morty Defenses.