THS is currently offering an interesting little app on Steam called Lossless Scaling. It proports to triple your frame rate, and actually does so, but with some interesting caveats.

Frame generation isn’t new, there’s a lot of vendor solutions out there like DLSS and FSR already. What lossless scaling does is work on games that do not have those features. It is a purely post-processing effect that works on any game by taking 2 rendered frames and generating up to 2 new in-between frames using an AI trained model.

As you might guess, this has some interesting limitations and artifacts. Firstly, input latency goes up slightly because it relies on 2 fully rendered frames to generate the in-between frames. Also, since lossless scaling is a purely post-process effect, it cannot utilize motion vectors to help calculate in-between frames like FSR/DLSS. This leads to some interesting motion artifacts.

Digital Foundry’s Alex Battaglia did a video on Lossless Scaling and covers all the pros and cons with some great video clips. His takeaway? He really liked it. You should use the much better FSR/DLSS if you have it, but lossless scaling is great for older games that do not have those technologies. It’s also great for increasing frame rates on games that were traditionally locked to lower frame rates (though you want to carefully tune it to a multiple of your monitor refresh rate). It also seems to work ok with some games that have aggressive anti-cheat systems that usually detect frame-rate changing apps.