I don't even have a 4k TV and it's worth it so yeah. It will pretty much guarantee you have a working comsole until the ps5. Your older ps4 might break before then so it's an extra insurance on top of the already worth it upgrades.

One could question if a 4K TV at only 40" was really worth it (does it have a decent latency with HDR?!) but I really think the Pro is worth it, be it for better image quality, performance (also in older games), faster load times or better VR capabilities. If you don't want to wait for the inevitable 50 dollar price drop in fall (and the according availability problems) I'd say go for it. It's a great machine despite all the haters.

Tbh for just 100 bucks less or so it's not worth it. 2.3 times the power plus more RAM for just 100 more is a steal. One must be either cheap or stupid to go for a slim now, especially regarding future investments and if someone has a 4K TV already, like the OP.

You obviously didn't have a 4K TV, so your point is mute.

One can easily spot the difference on a 4K TV . Normal 1080p output upscaled usually doesn't look great on 4K TVs. Plus faster load times!

https://en.wikipedia.org/wiki/Checkerboard_rendering

It's a technique PS4 Pro and XBox One X use to reach 4K or close to 4K resolutions without having to render a native 4K output. As far as I know even PC will get this technology in future games. 

As much as you seem to 'know' (or have heard) about the Pro I find it somehow strange you don't know what checkerboarding is.

Checkerboarding is a rendering technique that's used to increase the resolution of a game by taking data from a previous frame and placing it into a new frame. It's way more effective than upscalling and way less demanding than rendering a new pixel natively.

It doesnt, only some 2D games maybe have some graphic errors. 5-10fps more is a huge difference on average

That doesn't tell me anything... Most ps4 pro games do that. What I mean is, what does it mean when you said "checkerboard 4k"? Like what resolution is it checkerboarding to 4k from? Cause it doesn't make much sense if it checkerboards to 4k from 4k res...

Hence why I said "some games"

And not really imo. Like yea if u are looking at averages, its a good gain but nothing remarkable... Cause basically its just hitting the target framerate that ps4 was supposed to hit in the first place which is okay but nothing wow worthy imo. And with games like bloodborne, it doesn't even do anything of note.

So I doubt boost mode would have made me keep the ps4 pro.

Yes it does, Bloodborne drops frame in certain areas.

Evil Within, EDF 4.1, Dragon Quest Heroes, Until Dawn, Star Ocean 5, DOAX3, Resident Evil 5, Resident Evil revaltions 2, Bladestorm, Life is strange X times any DW game and more, all improve from the boost mode as they are dropping frames.

And i am not even into AAA games..

I have a 70 inch 4K tv and I bought the pro the day it came out... I can barely tell the difference. Save your money man...

Sorry, to checkerboard to a resolution you need to render half of the pixels in the native resolution you're going for. So a checkerboard 4K image is going be natively rendering something to the tune of 1527 X 2715.

Mind you, checkerboarding isn't resource free. So it takes more power to render a 4K checkerboard image than it would to produce a native 1527 X 2715 image, but there's a pretty sizable jump in image quality.