KK slips CELL performance at decoding HD streams.

[PC-Engine]

http://pc.watch.impress.co.jp/docs/2005/0521/e305.htm

According to Kutaragi, a full HD MPEG2 stream video results in 70% utilization of single APU, which is enough to run additional audio filter.

So CELL as seen in PS3 can decode 6 HD MPEG2 streams? That's not very impressive at all considering a 3GHz P4 can manage 3 HD MPEG2 streams. :?

 

[London Geezer]

http://pc.watch.impress.co.jp/docs/2005/0521/e304.htm

According to Kutaragi, a full HD MPEG2 stream video results in 70% utilization of single APU, which is enough to run additional audio filter.

So CELL as seen in PS3 can decode 6 HD MPEG2 streams? That's not very impressive at all considering a 3GHz P4 can manage 3 HD MPEG2 streams. :?

 

[PC-Engine]

http://pc.watch.impress.co.jp/docs/2005/0521/e304.htm

According to Kutaragi, a full HD MPEG2 stream video results in 70% utilization of single APU, which is enough to run additional audio filter.

So CELL as seen in PS3 can decode 6 HD MPEG2 streams? That's not very impressive at all considering a 3GHz P4 can manage 3 HD MPEG2 streams. :?

Your point?

 

[London Geezer]

http://pc.watch.impress.co.jp/docs/2005/0521/e304.htm

According to Kutaragi, a full HD MPEG2 stream video results in 70% utilization of single APU, which is enough to run additional audio filter.

So CELL as seen in PS3 can decode 6 HD MPEG2 streams? That's not very impressive at all considering a 3GHz P4 can manage 3 HD MPEG2 streams. :?

Your point?

APU = Cell?

 

[PC-Engine]

http://pc.watch.impress.co.jp/docs/2005/0521/e304.htm

According to Kutaragi, a full HD MPEG2 stream video results in 70% utilization of single APU, which is enough to run additional audio filter.

So CELL as seen in PS3 can decode 6 HD MPEG2 streams? That's not very impressive at all considering a 3GHz P4 can manage 3 HD MPEG2 streams. :?

Your point?

APU = Cell?

Your point?

 

[London Geezer]

http://pc.watch.impress.co.jp/docs/2005/0521/e304.htm

According to Kutaragi, a full HD MPEG2 stream video results in 70% utilization of single APU, which is enough to run additional audio filter.

So CELL as seen in PS3 can decode 6 HD MPEG2 streams? That's not very impressive at all considering a 3GHz P4 can manage 3 HD MPEG2 streams. :?

Your point?

APU = Cell?

Your point?

I'm asking, is 70% of 1 APU = 1/6th of Cell?

 

[Npl]

So 7 SPUs = 700% -> SPUs can decode 10 HD-Streams & PPU could like do 1 or 2 additionally.

 

[Qroach]

Interesting... it's still pretty powerful tho, but certainly not 1000x the power of PS2 claimed 5 years ago.


I don't knnow if you doubt it, but i always take sony's claims of performance with a grain of salt. Much of what that article created by MS was false (the major nelson article first posted) but they had one thing right. Sony has a habit of over promising on performance and not living up to that promise. Still cell is powerfull enough to do many cool things.

 

[London Geezer]

So 7 SPUs = 700% -> SPUs can decode 10 HD-Streams & PPU could like do 1 or 2 additionally.

That was my point.

 

[London Geezer]

Interesting... it's still pretty powerful tho, but certainly not 1000x the power of PS2 claimed 5 years ago.

Not claimed. Targetted. They can claim something when they have something in their hands to prove it.

 

[Qroach]

semantics

 

[London Geezer]

semantics

Errr not really. But you believe what you want.

Besides, KK saying "We're targetting PS3 to be 1000x what PS2 was" was never really clear.
1000x what? floating point? polygons? whatever...

 

[Bjorn]

Doesn't the PS3 have 7 APU's ? (SPU = APU ?). Wouldn't that be more like ~10 hd streams then 6 then ? And then you have the PowerPc core also that probably can decode a couple of streams.

Edit: to slow...

 

[Qroach]

it is semantics. Sony say we are going to be "here". you say it's "targetting" I say it's a "claim".

 

[PC-Engine]

So 7 SPUs = 700% -> SPUs can decode 10 HD-Streams & PPU could like do 1 or 2 additionally.

That was my point.

That's only equivalent to three or four 3GHz P4s which is pretty nice but not as powerful as one would expect.

 

[Qroach]

Besides, KK saying "We're targetting PS3 to be 1000x what PS2 was" was never really clear.
1000x what? floating point? polygons? whatever...

does it matter? is PS3 1000x PS2 at whatever metric you want to use?

 

[Bjorn]

Interesting... it's still pretty powerful tho, but certainly not 1000x the power of PS2 claimed 5 years ago.

Isn't that for the whole system though ?

 

[HellFire_]

You know this is software only? I mean without a GPU at all.

 

[PC-Engine]

You know this is software only? I mean without a GPU at all.

Yes I know this is software only. A 3GHz P4 can decode 3 HD MPEG2 streams.

 

[Bjorn]

That's only equivalent to three or four 3GHz P4s which is pretty nice but not as powerful as one would expect.

Since when is decoding of MPEG2 considered to be the only measurement of CPU power ?