By using this site, you agree to our Privacy Policy and our Terms of Use. Close
taus90 on 10 April 2018
Edit Thread
Pemalite said:
Kyuu said:

I'm not a tech expert but the structural difference between PS3 and PS4 appears to be greater than between X360 and Xbox 1.

They all use completely different ISA's.
Xbox 360 and Playstation 3 are PowerPC based which are different than x86.
The Xbox 360's GPU however is more custom than it's PC counterparts, where as the Playstation 3's GPU was essentially an off-the-shelf Geforce 7.

So "not exactly" is the answer I can give you there.

Kyuu said:

Sony doesn't need to copy that (assuming they're even capable) since their priorities lie else where like they should. It's understandable that they don't want to waste time, effort, and resources into what amounts to very little, whereas it's inexcusable in the case of BC with PS1 and PS2 because PS4 can emulate those without any extra costs apart from one trusty emulation software that automatically takes care of 99% games. That is unless licensing is a bigger obstacle than I imagine it is.

Well. Sony can afford to put a team together that is dedicated to the task that will not take time/attention/resources away from other projects.
Excuses aren't solutions.


Kyuu said:

Hopefully a well designed PS5 will be "properly" backwards compatible with PS4, maybe even PS1-3 thanks to it having enough power to truly emulate PS3 without any time wasting game-specific coding/programing.

Power isn't the issue.
Playstation 3 emulators on the PC not only run better, but perform better than the Xbox 360 emulators.

There are ways to engineer around various issues which I highlighted prior.

Kyuu said:

Pseudo-emulating PS3 just isn't worth it imo.

Disagree. Emulation is always worth it.

aah dude u are off on so many levels.. but i have to say one thing as a person who has worked on PS3 games and PS4, I would tell you this just running an emulator on PS4 isnt going to make PS3 game work, the amount restructuring of codes required to move from SPU onto CU's is huge, with that much effort remastering a game sounds feasible, and the emulation is more difficult coz besides new architecture sony also had to over haul their framework and PSlib. Of course emulation will work on games that relied heavly on RSX, but there weren't many and those are the games i dont think anyone wanna play.

Also speaking about Xbox BC one of the reason MS was able to achieve backward compatibility is the their strong OS and virtualization framework under the hood which is more in line with their 360 (DXlib), and the base for Xbox one BC was that late in the 360 life cycle MS had introduced a feature of installing the full games on to the internal drive and play it with just a disc verification, so MS built upon that and are recompiling each games so that Xbox 360 emulator can handle them with each firmware update.. Its this recompiling part which is damn difficult with SPU codes.