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Forums - Sony - The PS4 has an extra 256MB of DDR3 ram.

fatslob-:O on 15 November 2013

http://www.tomshardware.com/news/playstation-4-repair-guide-ps4-teardown-ifixit,25093.html

Well that was mind blowing.

Secret sauce confirmed here ? 



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GdaTyler on 15 November 2013

Are you kidding me? PS4 8GB GDDR5 RAM + PS3's RAM Equivalent?



3DS Friend Code: 0533 - 6146 - 0418
PSN ID: atylerman5

KingdomHeartsFan on 15 November 2013

Will that do much?



Kongfucius on 15 November 2013

Interesting. Unlikely I know, but I wonder if any devs will experiment with using this memory and the PS4's secondary processor to help make their games look better - I think Naughty Dog might have done something similar when they made the Jak and Daxter games on PS2 where they used the built in PS1 chips to improve the performance. I'm fully prepared to be proved wrong on that though



bananaking21 on 15 November 2013

for what is this used?



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RenCutypoison on 15 November 2013

Isn't that for the UI ?



ethomaz on 15 November 2013

It is the memory used by the ARM background processor.



RenCutypoison on 15 November 2013
Kongfucius said:

Interesting. Unlikely I know, but I wonder if any devs will experiment with using this memory and the PS4's secondary processor to help make their games look better - I think Naughty Dog might have done something similar when they made the Jak and Daxter games on PS2 where they used the built in PS1 chips to improve the performance. I'm fully prepared to be proved wrong on that though


What if sony made a new model without retrocompatibility ?

I wouldn't have taken the risk



ethomaz on 15 November 2013
- Samsung K4B2G1646E-BCK0 2Gb DDR3 SDRAM = 256 MB DDR3 memory
- Macronix MX25L25635FMI 256Mb Serial Flash Memory = 32MB SECURE Serial Flash Memory

@ boom, this exceeds what's needed for background downloading & Playready DRM, DLNA client/server and IPTV player. Speculation is that the excess can be used for the 15 minute loop @ 720P (h.264 compressed) and my view that it can also be used for a RVU video loop and cache for DVR to reduce the on time for the Hard Disk.

Then PS4 software credits include Mono, Mono VM, Lua, Cairo, Webkit, Microsoft IP which includes Playready DRM and more.......

Playstation mobile requires Mono and Java, PS Home requires Lua, Webkit and Cairo

http://semiaccurate.com/forums/showthread.php?p=199893#post199893



Somini on 15 November 2013

Why this exact number? Is it to emulate PS3 games via Gaikai later or something?