PlayStation 3 to feature Blu-Ray Disc

[Waelan]

from what I understand here

http://en.wikipedia.org/wiki/Blu-ray_Disc

the players can read discs other than blu ray at 36 Mbps but they read the blu ray discs themselves at 54 Mbps instead

also, the 72 Mbps discs have already hit the shelves I believe know as the TDK professional disc

http://www.afterdawn.com/news/archive/6324.cfm

anyone have a clue as to whether or not these faster discs will be standardized over the 54 transfer speed ones?

ugh I also notice in the faq its asking about the recording speed possibly its recording data slower than just reading it back?

[erdega79]

bd rom(movies and games) reading speed is 54mbps. It's unclear if this will be labeled 1x or 1.5x .
bd r is 36mbps by default

[Waelan]

thats very cool any idea if they will make the 72 speed discs standard seems they are pretty sweet

[Zpoint]

Hmm if the BD-ROM read speed is 54mbps for 1x, then the 2x read speed will be 108mbps? I am confused with this 36/54mbps -_-

[Marwin]

Our understanding is that 1X BD speed is defined as 36.55Mbps. However, BD-ROM (for movie applications) will according to the specs require 54Mbps, so all BD players/drives will need to support at least a 1.5X read speed.

I've updated the FAQ to state 1.5X for BD-ROM and added BD-R/BD-RE tables also, so hopefully it is a bit clearer what we mean now. Perhaps we need to further split the FAQ into sections about the different Blu-ray formats (BD-ROM, BD-R, BD-RE). Anyway, if anyone believes that this interpretation is wrong, please let us know

[Waelan]

For anyone interested in pretty much every scrap of info about the RSX before its finished the numbers below are not final numbers just estimates given by Nvidia at E3

* Clocked at 550 MHz
* 1.8 TFLOPS floating point performance, 356 GFLOPS programmable
* Full high definition output (up to 1080p) x 2 channels
* Multi-way programmable parallel floating point shader pipelines
* 300+ million transistors (exact amount not yet known)
* 136 shader operations per cycle
* 100 billion shader operations per second
* 51 billion dot products per second (When combined with CPU power)
* 128-bit pixel precision (for rendering scenes with high dynamic range imaging)
* Vertices Performance: 1.1 billion vertices per second
* Texture bandwidth: 47.5 GB/s
NVidia CEO Jen-Hsun Huang stated during Sony's pre-show press conference at E3 2005 that the RSX would be more powerful than two GeForce 6800 Ultra video cards.

The RSX is supposed to be a more powerful version of the 7800 series so if you want to look at an in detail description of the 7800

http://www.extremetech.com/article2/...1830187,00.asp

Both the RSX and the 7800 have a new type of better AA found only in the ps3 consoles and this pc chip no others. If youd like to see some ingame difference between what this means in terms of what you see.

Transparency Adaptive Anti-Aliasing
http://www.extremetech.com/article2/...1836779,00.asp

As the 360 and Rev went with ATI both use the old type of AA ^^^

[Waelan]

The CPU inside the PS3 is the Cell

http://www.extremetech.com/article2/...1761534,00.asp

heres a full article Ill write a shorter version for people that dont want to read it all

The Cell is made up of a single Core running at 3.2 GHz with its own 512 KB cache and 7X 3.2 GHz SPEs each having its own 256KB cache. The core is multipurpose and can do anything a PC CPU can the SPEs are given specific tasks by the games and just do those tasks the entire time. They are excellent at performing physics calculations and can even do some graphical work in conjunction with the RSX. They can also do other things such as running game AI etc.

In terms of what physics will do for games Ill give you a few example. If you say blow up a building in a game, theres a set of graphics they use to show an explosion drawn out by someone to look like an explosion. In the ps3 using physics, instead they can calculate what an actual explosion looks like in real life and show it on the screen complete with smoke sound fire effects everything. You can throw an object in a lake and calculate what the ripples look like. You can have a wind blowing across a field and see the grass blowing exactly how it should. Phyiscs means real effects, real weather etc.

http://www.tomshardware.com/hardnews...30_185425.html

The PS3's memory

256 MB Rambus XDR DRAM clocked at CPU die speed (3.2 GHz)
256 MB GDDR3 VRAM clocked at 700 MHz

System Bandwidth

Main XDR DRAM: 64 bits × 3.2 GHz = 25.6 GB/s
GDDR-3 VRAM: 128 bits × 700 MHz × 2 accesses per clock cycle (one per edge) = 22.4 GB/s
RSX: 20+ GB/s (write), 15+ GB/s (read) (waiting for RSX chip)

If anyone has questions about Memory and bandwidth and how they work or more questions about the ps3 I can try to answer them :D

[thunderhawk]

More about Cell processor:
https://www.blu-ray.com/forums/viewtopic.php?t=470

More about PS3, Xbox360, etc:
http://www.gamespot.com/e3/e3live.html
You can find Sonys press conference there, with all the information you need

[erdega79]

Originally Posted by Marwin

Our understanding is that 1X BD speed is defined as 36.55Mbps. However, BD-ROM (for movie applications) will according to the specs require 54Mbps, so all BD players/drives will need to support at least a 1.5X read speed.

I've updated the FAQ to state 1.5X for BD-ROM and added BD-R/BD-RE tables also, so hopefully it is a bit clearer what we mean now. Perhaps we need to further split the FAQ into sections about the different Blu-ray formats (BD-ROM, BD-R, BD-RE). Anyway, if anyone believes that this interpretation is wrong, please let us know

It's absolutelly right . The only issue is the interpretation. The basic specs when they introduced blu ray was 36Mbps but then they upped it at 54Mbps for bdrom which is movies and games basicly to improve quality and there was even a talk of going 72Mbps.

Since every drive should support bdrom for movies, it will be 54Mbps at least.

[Waelan]

I withdraw my fault information as I choose a poor source :(

[redfireknights]

i hope blu-ray disc has protection against piracy for ps3 disc.

[Gorkab]

Originally Posted by redfireknights

i hope blu-ray disc has protection against piracy for ps3 disc.

All consoles does not have a great protection against piracy for one reason : You buy the console, not the games, so SONY make their market, Nintendo & Microsoft too... 8)

[Waelan]

Blu ray features dynamic encoding making them extremely hard to crack and once cracked they just change it. DVDs are easily pirated.

http://en.wikipedia.org/wiki/Advance...Content_System

But wait theres more Blu rays feature a watermark similar to watermarks on dollar bills and other currency further preventing counterfeits.

http://en.wikipedia.org/wiki/Blu_Ray#Security

[Blackraven]

I have a question though.

By the time Blu-ray makes its global commerical launch next year, it will use the Version 2.0 specificiations (correct me if this is not true).

If so, is the transfer rate/speed of all BD discs rated @ 72 Mbit/s?

If so, does this (using ver.2 specs) beat DVD and other rival formats in terms of speed?

[Waelan]

They are keeping announcements about drive speed uptight but assuming not.... a 2X drive would put it on even speed with 360 and Revolution. A 4X drive would blow them away. I wouldnt count on faster.

[Rob]

So basically, even if the PS3 uses a 2x Blu-Ray drive, it's still going to be significantly slower than XBOX 360's 12x dvd player. Meaning load times will be longer on PS3.

[thunderhawk]

Originally Posted by Waelan

They are keeping announcements about drive speed uptight but assuming not.... a 2X drive would put it on even speed with 360 and Revolution. A 4X drive would blow them away. I wouldnt count on faster.

Wrong, PS3 will use a 6x BD player 8) :wink:

My information:

Kaz Hirai has taken the stage, beginning his speech with "190 million PS2s sold. 2 billion software sales" Hirai then began speaking about PlayStation 3... It features the CELL processor as previously reported, and also features a Blu-Ray Disk drive, running at 6x.

Please check page 3 for this nice topic, thank you very much :wink:

[Rob]

Originally Posted by thunderhawk

Wrong, PS3 will use a 6x BD player 8) :wink:

My information:

Please check page 3 for this nice topic, thank you very much :wink:

So this quote was taken before the official E3 conference. How comes it hasn't been reported anywhere!? :?

[thunderhawk]

wierd isn't it?

[Rob]

My only thought is wouldn't a 2x BR drive be expensive enough for the PS3 let alone 6x. The faster the disc spins the more accurate the drive needs to be etc. Perhaps they'll annunce this at TGS!?