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Breaking News on PS4 - Kotaku reveals new info!!

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Somebody in GAF...

"256MB EDRAM believe."

So 2GB VRAM + 256MB EDRAM and you have the 2.2GB.... I laugh a lot this time.

PS. That's just a joke because the improbable number.

There is other option 9 modules of 256MB but the 288bits bus interface is weird.



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Chandler said:
That's good news. Now I can watch the glorious 180° people will make about a touchscreen on a Controller.


I'm a big Sony fan and I find the touch screen controller idea to be pretty awesome/useful as I'm sure many of the Vita owners here would agree as well. While there is no doubt some who may be haters or hypocrites if this comes to be, don't subject your brooded antimosity in this kind of a snide manner. Just ignore those people but at the very least don't transmit their trolling into other threads serving as a generalization to an entire assumed group when no one knows or cares if you are refering to any specific individuals or not.



Before the PS3 everyone was nice to me :(

ethomaz said:

Andrespetmonkey said:

I don't know what you're talking about, but I'll take your word for it. I just assumed "vram" was referring to the gddr5.

The GDDR5 modules sold in the market are 256MB, 512MB, 1024MB and 2048MB.... each module have a 32bits interface.

So you can't get 2.2GB from these modules... any amount of RAM have to be multiple of these modules.

Eg.

4GB GDDR5 = 8x 512MB (256bits interface)

or

4GB GDDR5 = 4x 1024MB (128bits interface)

The bits interface give you the final bandwidth for the memory...each GDRR5 module at 32bits have a bandwidth of 20GB/s (dependes of the clock)... so 8 modules (256bits) give you 160GB/s of bandwidth... 4 modules (128bits) give you 80GB/s bandwidth.

The supposed bandwidth for PS4 is 160GB/s... so a 256bits interface that needs 8 modulos of GDDR5.

8 x 256MB = 2GB
8 x 512MB = 4GB

So it's impossible to reach 2.2GB with GDDR5.

ok, thanks for the explanation.

So this 2.2 number was just pulled out of someone's arse then?



I don't like the idea of backtouch, I have big hands and they usually gets in the way when playing my vita



Andrespetmonkey said:

ok, thanks for the explanation.

So this 2.2 number was just pulled out of someone's arse then?

Well I thought a little more and have JUST one way to get to that number... add another 256MB module but that's too weird to be true because a never saw a bus interface of 288bits.

9 x  256MB = 2.2GB @ 288bits = 180GB/s bandwidth

This other module can be a similar one or a EDRAM module near the GPU... again that's too unrealistic and hilarious to be true.

The others specs are realistic at least.



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arcane_chaos said:
I don't like the idea of backtouch, I have big hands and they usually gets in the way when playing my vita

They'll give you the option to turn it off I think. Would be dumb not to because I constantly touch the back of my controller when playing PS3.



The touchpad rumor is interesting. I'm not sure how great it would be for most core games, but the idea of interfacing with the OS and PS Store with a mouse type cursor is kind of awesome.

Actually, I wish it would let me hook my Vita to the PS4 and let me control the functions via that. The Vita interface is excellent.

As far as the specs go, I'm not even going to worry about that yet.



Rafux said:
I know it is a buffed up dev kit but it sounds expensive with all the tech and new touch screen controller.


That touch screen doesn't have a display though, so cost is probably minimal.



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If these specs are for the dev kits(which have more memory than retail) what will the retail specs be?



Chandler said:
That's good news. Now I can watch the glorious 180° people will make about a touchscreen on a Controller.

WiiU tablet touchscreen w/o multitouch =/= capacitive touch pad w/o display.

From the sound of this one it will add little to no additional bulk to the controller, keep the costs low and also allow for multiple touch enabled controllers to be used at a time.



iPhone = Great gaming device. Don't agree? Who cares, because you're wrong.

Currently playing:

Final Fantasy VI (iOS), Final Fantasy: Record Keeper (iOS) & Dragon Quest V (iOS)     

    

Got a retro room? Post it here!