It only limits games to 1080p resolution at 60 frames per second. You'd just need to save your game when one session ends and start a new session - which basically means an interruption during your gameplay. Here are the details for both memberships:
For both GeForce Now memberships, users need to buy - or already own - the games they want to play.
GeForce Now will be available with a free membership, and a paid membership called 'Founders' at launch for $5 per month for 12 months.
