Microsoft's Xbox 360 & Sony's PlayStation 3 - Examples of Poor CPU Performance
Console fanboy....prepare to get slaughter by pc gamer.

IMHO,

PC > PS3, Nintendo revolution, XBOX 360

But..........

I will buy those consoles if there is pirates on the sea (if u know what i mean)

lol, same here, price also matters

H@H@, thanks for the l33t upgrade.

Now I can pwn and cum as I please. Yay.

are PS3 n Xbox 360 selling in the market now?

I read HWM say PS3 will be launced at 2006 and Xbox 360 at end of 2005

BTW,if the price is around Rm2+++.It's pretty reasonable since the specs are really overwhelming,CPU 3.2ghz,VGa 500mhz memory,20gb buildin memory ,wireless,6 USB 2.0 and so on...

with those specs u've mentioned...i'm surprised that u don't even know whether PS3 or Xbox 360 is already in market or not...???

so fast gonna get it, yahoo!

Oh noes this is turning into a spam thread.

Btw the Cell's PPE just got beefed up in the latest revision. Double the size of the 1st revision. Perhaps they realized they needed more general purpose processing power.

The PPE got a bump up in size in the "DD2" revision of the Cell, but there hasn't been any concrete explanation as to what was changed, just more speculation. Anyway, more goodies for the technically minded: papers at IBM research

The TRE demo paper is a good one.

"Each SPE is responsible for four regions of the screen and the vertical cuts are processed in a round robin fashion, one vertical cut per region, and left to right within a
each region, so no synchronization is need on the output as no two SPEs will ever attempt to modify the same locations in the accumulation buffer even with two vertical cuts in flight (double buffering) per SPE."

I wonder if the vertical cut processing on the SPE, done in a round-robin fashion, is due to the limitation of the DMA. Since SPE basically screams parallelism, the bottleneck would be the result of DMAs prioritized in a way such that each SPE has equal rights to the DMA thus resulting in a round-robin stalemate.

Paralellism lost in translation. You'll make it big if you could patent something that makes DMA bus arbitration and memory coherency a thing of the past.

I think you might have gone off-track somewhere. The round-robin scheduling is applied to the four regions being processed within each SPE, not SPE-to-SPE. There is a significant delay in DMA fetches, but that is being hidden by the double-buffering of input and output per SPE. As they explain further down, at any one time an SPE is calculating the ray intersection and downloading data for the next cut into LS. I believe they are doing it in this way to leverage the fact that the SPE is capable of issuing a SIMD arithmetic op and a load/store/DMA channel op per clock.

That sentence quoted above mentioned that round robin is applied to the vertical cut processing. I'm assuming each region has several vertical cuts (I'm not a graphic expert here so correct me if I'm wrong) and that each vertical cut process accesses a memory index containing the mathematical description, where the index is auto-incremented by the DMA controller. Also I'm assuming that "one vertical cut per region" relates to the round-robin fashion that the vertical cuts are processed, left to right, one region at a time and one vertical cut at a time.

If this is correct, the four regions you've mentioned relates more to DMA frames (or block) with its parameters (base address, length and data size) initialized through the command parser. It makes sense since each SMF would need to arbitrate between one another for bus access, thus the usage of the round-robin method.

This post has been edited by ray_: Aug 13 2005, 02:21 AM

More documents on Cell Broadband Engine available to all.

Cell Broadband Engine

Enjoy....

Also: There shouldn't be any more speculation on whether the Revolution processing power is superior to that of 360 or PS3. Iwata has conceded that the Revolution is "less powerful". Read source here. Nifty controller for the pwn.

This post has been edited by ray_: Sep 30 2005, 05:59 PM

How soon after launch do consoles tend to start appearing in Low Yat shelves, and are they NTSC consoles? Are the prices on par with the foreign equivalents?

New consoles that are released in Japan usually get here in the first week of release, if not on Day Zero. However, be prepared for a serious markup. Going by the PSP pricing trend, I'd expect the prices of next generation consoles to reach parity with the overseas "suggested retail price" within 3-6 months of release.

PS, Low Yat Plaza isn't really a haven for console gaming, you'd be better off looking for console related things across the street in Sg. Wang or Imbi Plaza.

Nintendo Revolution's Controller is cool...like dat nun-chuku style analog...so cool...but ps3 is great too...coz all my favourite rpg game will out on ps3...xbox not bad also...xbox live...xlink kai...can play on9...c...alll also so good....duno which to buy also of they r out....i know u guys will ask me to buy all...but i m jz 13...baggin daddy to buy me a console...oni 1 console is allow...haiz...gv some comment...readers...

Revolution to Launch Worldwide in June 2006?

June 2006? That's late...

i hope next-next gen console will support Stereo HMDs

^what s stereo HMDs?