Sony to use Nvidia Tegra for PSP2; explains delay

[joeorc]

jarrod said:

joeorc said:

jarrod said:

joeorc said:

Soleron said:

joeorc said:

makingmusic476 said:
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no it's still @ 550

On Nvidia forums =/= "straight from Nvidia". Anyone can post there.

Doing a few searches, it looks pretty even split between 550 and 500MHz. The 550 number was posted first but then it was news that it was downclocked to 500. I haven't seen technical evidence either way; spec sheets don't count as they could be pre-downclock.

since the spec's were finalized on the 90 nm scale as 550 Mhz,the PS3's production when it's finalized is and was 550 Mhz. that rumor that the clock speed was reduced to 500 Mhz was just that a rumor. while Nvidia has alway's stated it wasat 550 Mhz. Nvidia publicaly stated it was @ 550 Mhz

It wasn't a rumor, Sony said it themselves (albeit 'privately' to development partners) around TGS 2006 and Game Watch leaked the story (which western media basically ignored in favor of old spec sheets).  VRAM speed also got a downclock from 700 MHz to 650 MHz and there may have also been a reduction in pixel shaders (from 32 to 24).  Neither Sony nor Nvidia made any direct statements after the TGS leak afaik?

http://game.watch.impress.co.jp/docs/20060925/3d_tgs.htm

no that's in ref. to the dev. kit..not the PS3

the dev. kit's GPU was 500 MHz!

That... doesn't actually make sense.  You can't have a slower clocked devkit (especially with memory speeds).  If anything, most devkits actually use upclocked RAM (and more of it) for prototyping.

remember at the time very few dev. kit's were released at that time because sony was not able to ramp up production of more kit's at the time.

28 pixel shaders (4 redundant, 24 active) at 550Mhz

also: you can use a slightly slower GPU to make game's just as you can with a faster speed GPU..remember the processor in the PSP mip's were released @222 Mhz, but they were 333MHz cores?

so developer's could use the faster speed, but it was not until later ! developer's programmed as if the PSP was at 222 MHz for their game's even though the PSP's 2 processor's were clocked @ 333 MHz