http
/www.digitaltrends.com/computing/g-sync-tested-is-it-worth-the-price-or-destined-for-the-parts-pile/
The following is only an example. I don't have time to look further:
http
/www.cnet.com/products/asus-rog-g751-g-sync/
I have a very deep understanding of GSYNC and I can comfortably say it's a huge, huge deal. Especially for laptops. I would investigate if you get one on how to create a frame rate CAP while also keeping GSYNC enabled. That's too involved for right here though it's likely NVidia will address this in a driver update (cap by default with GSYNC).
For example, if you capped to say 65FPS (you have to be below the 75Hz response assuming 75Hz monitor to cap.. just not sure how low). then you get two benefits:
a) GSYNC/asynchronous mode still enabled (not using VSYNC or VSYNC OFF mode), and
b) capping frame rate reduces fan noise by a lot usually
If this is confusing (and likely is) I'd still get GSYNC. It will be better than not, it's just that learning how to use it properly can be better still.