[quote name='Wolfpup']I've never heard that before, nor seen that in any breakdown, but even if that's how they're doing it, they don't need to. I'd need some proof of that though, as I've seen multiple breakdowns of Sony's hardware and it started out with a PS1-on-a-chip but AFAIK has long since been folded up into the PS2...maybe not though.[/quote]
The part number of the chip is plainly visible. You do some legwork for a change.

I pointed out each and every major backwards-compatible chip to you on 4 different system boards. I think that's enough. If you don't believe me, go find something else.
[quote name='Wolfpup']In the first place, the PS3 actually DOES use RDRAM...though the timings, interface, etc. would be totally different for it. That said, you're acting like the EE is unchangeable. They could rework it to use SDRAM if they wanted to. They can certainly change it's memory controller, or have it use an external memory controller (ie the PS3's) and either in hardware or software handle memory timing issues so that software running on it behaves more or less as expected. [/quote]
They can't change the type of memory the processor accesses or how it accesses it without running a huge risk of breaking existing software that depends on things being done the "old" way. In a full software emulation setup, they obviously can. Whether they'll do that or not is debatable.
[quote name='Wolfpup']They would have if they took backwards compatibility seriously enough-or possibly just if they had enough time. I doubt that was a primary focus for them.[/quote]
Even if it wasn't a primary focus for the PS3, don't you think more efficient packaging would be a primary focus for the
PS2, if it was indeed economically viable? The slim PS2 uses dozens of chips, and they build tens of millions of them a year. Don't you think if it was cost effective to shrink it all into one chip they would have done so? PS3 cost savings would just be gravy at that point, compared to the BOATLOADS of cash they'd save on the PS2.
[quote name='Wolfpup']No, you claimed they weren't releaseing one with backwards compatibility, on roughtly the same day th ey just announced they're releasing another one with backwards compatibility.[/quote]
Don't tell me what I said or what I meant. Sony already officially announced that the production run of the 80GB models is over. Just because they recalled stock from the channel to resell at a later date doesn't mean they're re-introducing backwards compatibility. When they stopped producing the 60GBs, they still made it into the channel for a few months. But that doesn't mean they were building more.
[quote name='Wolfpup'] And no, I don't know that they won't ever go back to having more or less the full hardware. Doing so will get cheaper and cheaper for them however they do it. Or alternatively they may be working on software emulation. I certainly hope they're doing one or the other, as one of the big draws for the Playstation brand has been full backwards compatibility. Without that there's no need to stick with the PS3 over the 360 or PC just to maintain compatibility.[/quote]
I would guess that they're probably working on emulation. How determined they are to make it work is anybody's guess. But they've very publically stated that they're trying to move the market away from playing old games and on to selling new PS3 titles. Supporting full BC undermines that. Aside from production cost, that was one of the big reasons it was eliminated. Most of the people interested in BC were early adopters anyway and either bought at release or when the announcements came that it was going away.
But I'll wager hard cash that there will never be a 120/160GB PS3 (ie NEW PRODUCTION, not new old stock that was built last year) with a EE+GS under the hood. That cut is permanent, I guarantee.
[quote name='Wolfpup']The 40GB model uses a CPU built on a 65nm process versus 90 for the old one, so it runs cooler. But I'd expect the upcoming 80GB model that has backwards compatibility to also use the smaller CPU.[/quote]
The ones coming out in June were built last year. They will almost assuredly have the 90nm CPU. Sony is NOT building any new 80GB units. If they did build some towards the end of 2007 with the 65nm, then a few units will have it. But it certainly won't be the lion's share.