Tegra will do just fine as the all in one solution for a portable device. These portable devices don't need to be powerhouse systems.

When you have a screen of 400-something x 280 something and are rendering games at that resolution, you really don't need anything better than Gerofce  6

So there WILL bw a PSP2! And it will have better graphics than the 3DS! I still want to know whether it's selling point will or won't be the fact that it's a phone cuz that's what many people are guessing.

I haven't seen much concern about the performance. It is fast; much faster than the 3DS will be. The issue is power consumption and related delays. The Tegra was claimed to have hundreds of design wins, then 90% of them never materialsed for that reason.

Even then, if the PSP2 doesn't have glasses-free 3D then it may well lose the graphics 'war' too (not that it makes much difference to sales). But that's not related to the choice of graphics chip.

Speed is still technically up the air, as we don't know what CPU 3DS uses (likely ARM11 or Cortex core, but not confirmed and no clue about clocks), but Tegra 2 does employ a more advanced shader architecture (OPGLES 2.0 vs 1.5 for PICA200).

One big question I have with a Tegra 2 core is what happens to backwards compatibility?  Is it capable enough to emulate PSP1?  Will Sony stick a PSP1 core on the system somewhere similar to the PS1 SOC in fat PS2s or EE GS in early PS3s?

Damn

All this tech talk still makes me confused.

I think the fact its an all in one cpu/gpu solution will give them similar battery performance to the PSP 1 which is all that is needed really. I have not read much about Tegra 2 battery performance, but Zune HD with Tegra 1 chip has had nothing but praise about battery life from what I've heard.

I'd be surprised if Sony used a tegra chip for PSP to be honest. Sony likes to own their hardware designs... Portable gaming is not a be all/end all of computing performance and Sony should be able to crank out a sufficient processor rather quickly for this application that is comparable to Apples A4 or intel atom.

The article refers to a seperate CPU: "For a device that has already been delayed because of it's CPU, that is not a good sign.". So it may have two CPUs, one on-die and one off-die. The off-die one would appear to be more important. That's not a bad thing though - the DS has two CPUs as well.

With Tegra, it's not so much the absolute battery life (which was good) as that Nvidia promised X power use and delivered well above X (unacceptable in the embedded market) so all those design wins were cancelled. For Nvidia to have spent all that development money and get one SINGLE viable product (Zune HD) is not going to make money in that space. Normally chips by Qualcomm, Broadcom etc. need tens of retail products to do so. Especially after announcing so many Tegra products that never appeared.

More info here: http://www.semiaccurate.com/2010/04/14/samsung-dumps-nvidia-tegra/

"I'd be surprised if Sony used a tegra chip for PSP to be honest. Sony likes to own their hardware designs... Portable gaming is not a be all/end all of computing performance and Sony should be able to crank out a sufficient processor rather quickly for this application that is comparable to Apples A4 or intel atom."

CPU? Yes. They could use an ARM one. GPU? Sony's PSP strategy requires graphics much better than Nintendo, and there are very few high-end graphics makers. PowerVR could do it, but their commodity chip avaliable for Sony to just pick up and use isn't good enough to ensure that. They would have had to go with an external design to get the graphics capability.

Oh, good catch about the "2nd CPU" bit!  Maybe this will be the answer to back compat?  That's also (partially) why Nintendo stuck the upclocked ARM7 in DS, for GBA playback.

so with the rumors of the 3DS being more powerful then the ps3 to handle the 3D graphics without glasses is false? i dont know these reports were from like G4 and so on. and now one source says the psp2 will be more powerful but only 1/3rd of the ps3? hhmmm sounds to me like something is vapor ware and that nvidia themselves is giving out false reports like they have been in the past.

I dont think we need handheld graphics to pass xbox 1,so if sony is thinkin to go over that then i think they'll loose big money .Btw, the only game I seen Gameplay from the 3DS was Kid Icarus and Metal Gear and those 2 games might look good but far from lookin better than gamecube games like RE4,Luigi,Mansion, Prime,twilight princess and many others.

for those sayin 3DS graphics are better than GC, I dont know where do yall get this from but for now I say wait till we see gameplay from RE revelation