PS3 devkit

[dukmahsik]

Who cares about what it looks like should we care about this comment.

PCI-Express x4.......2GB/sec. Hardly the 35GB/sec the final unit will have.

Can you guys believe what was shown at E3 was using 2 GBs? Thats crazy a 17x boost would really make games look great. So now that we know what the games at E3 were running on what could they look like when the final PS3 is done?

i dont think they were using this at E3

 

[hasanahmad]

Who cares about what it looks like should we care about this comment.

PCI-Express x4.......2GB/sec. Hardly the 35GB/sec the final unit will have.

Can you guys believe what was shown at E3 was using 2 GBs? Thats crazy a 17x boost would really make games look great. So now that we know what the games at E3 were running on what could they look like when the final PS3 is done?

same is the case with alpha kits on xbox 360. G5 with AGP 8x runs at 2 Gb/s between cpu gpu

 

[mckmas8808]

Who cares about what it looks like should we care about this comment.

PCI-Express x4.......2GB/sec. Hardly the 35GB/sec the final unit will have.

Can you guys believe what was shown at E3 was using 2 GBs? Thats crazy a 17x boost would really make games look great. So now that we know what the games at E3 were running on what could they look like when the final PS3 is done?

i dont think they were using this at E3

So what do you think they were using at E3? Something worse?

 

[hasanahmad]

Who cares about what it looks like should we care about this comment.

PCI-Express x4.......2GB/sec. Hardly the 35GB/sec the final unit will have.

Can you guys believe what was shown at E3 was using 2 GBs? Thats crazy a 17x boost would really make games look great. So now that we know what the games at E3 were running on what could they look like when the final PS3 is done?

i dont think they were using this at E3

So what do you think they were using at E3? Something worse?

in E3 everything was a tech demo except Unreal 2007 which was running on a high end pc with sli 6800 like gears of war while the real time UE3 demo is similiar to the alpha kit Ruby Demo

 

[Laa-Yosh]

That bandwith is for only one bus in the system, the AGP / PCI-X goes between main RAM and video RAM/GPU. It can slow down texture and vertex uploads (makes streaming them problematic), but the actual video subsystem can work at the full speed of the GPU's own memory bus.
So, the change won't have such a big effect, although it should allow some interesting new effects and more textures per frame.

 

[SteamedRice]

thats funny you said that ut2007 one was on a high end PC considering current games run with HDR like crap not to mention AA in there and soft shadowing all on 720p, i dont see 6800s doing that. He also mentioned it was running on Cell so I don't see how they can use cell on a pc mobo with 2 pci-e slots running sli

 

[oi]

I actually seem to remember that he specifically said they didn't use Cell on the UT2007 demo, and that they would be able to do 'more amazing things once they start using it', or something along those lines.

 

[Titanio]

I actually seem to remember that he specifically said they didn't use Cell on the UT2007 demo.

They used the PPE, but none of the SPEs. I thought it was quite clear the UE3 demo was running off a PS3 dev kit though.

 

[oi]

Close enough!

 

[jvd]

Who cares about what it looks like should we care about this comment.

PCI-Express x4.......2GB/sec. Hardly the 35GB/sec the final unit will have.

Can you guys believe what was shown at E3 was using 2 GBs? Thats crazy a 17x boost would really make games look great. So now that we know what the games at E3 were running on what could they look like when the final PS3 is done?

What about the memory on the unreleased gpu ? Remember the video card has its own set of memory. I would highly doubt they were fetching textures over the 2gb bus

 

[one]

Who cares about what it looks like should we care about this comment.

PCI-Express x4.......2GB/sec. Hardly the 35GB/sec the final unit will have.

Can you guys believe what was shown at E3 was using 2 GBs? Thats crazy a 17x boost would really make games look great. So now that we know what the games at E3 were running on what could they look like when the final PS3 is done?

i dont think they were using this at E3

In a comment in a trackbacked blog, Honda clarifies that he really saw the same Unreal demo smoothly running off this devkit, with even more objects behind the scene (possiblly at the press event for PS3 demo in Japan which happened recently)

 

[Moegames]

Currently the library can't split a job into threads automatically, but when you create threads you can choose one of 3 threading algorithms by which the system assigns threads on SPEs automatically.

E3 press conference demo were actually running on this machine, which has the lower clockspeed and the lower bandwidth than the actual PS3 spec. Yay

Well this is some good news. 8)

Wow, why is it so big? I could see if it was an off-the-shelf PC like Xbox 360, but it's kinda big for a custom part.

Wow..it is pretty huge

 

[BlueTsunami]

Currently the library can't split a job into threads automatically, but when you create threads you can choose one of 3 threading algorithms by which the system assigns threads on SPEs automatically.

E3 press conference demo were actually running on this machine, which has the lower clockspeed and the lower bandwidth than the actual PS3 spec. Yay

Well this is some good news. 8)

Wow, why is it so big? I could see if it was an off-the-shelf PC like Xbox 360, but it's kinda big for a custom part.

Wow..it is pretty huge

Thats just a decoy console, the real console is the Giant Panda in the backround.....huh...where do you feed the CDs? You ever have a colonic...No?...then you don't want to know...

 

[Alpha_Spartan]

Who cares about what it looks like should we care about this comment.

PCI-Express x4.......2GB/sec. Hardly the 35GB/sec the final unit will have.

Can you guys believe what was shown at E3 was using 2 GBs? Thats crazy a 17x boost would really make games look great. So now that we know what the games at E3 were running on what could they look like when the final PS3 is done?

What's so shocking. U2K7, spiderman on a black background and assorted tech demos aren't so amazing. As far as the Killzone video, my PC can play back a CGI movie just as good as those PS3 dev kits.

 

[Wicked_Vengence]

Now I could be wrong here, but I remember reading in an interview (Mark Reins, I think) where they stated that the were using '2 Next Generation Video Cards in SLI' which I assume means that the UT2K7 demo was running of 2 7800's in SLI.

 

[jvd]

Can someone explain the hang up on the pci-e 4x bus ?

The dev kits have a cell and over that 4x pci-e bus are g70 cards with thier own pool of fast ram. Its most likely 256bit bus with 650+ mhz ram. This should be faster than the bandwidth the rsx will have acess too in the actual ps3 unit

 

[one]

Now I could be wrong here, but I remember reading in an interview (Mark Reins, I think) where they stated that the were using '2 Next Generation Video Cards in SLI' which I assume means that the UT2K7 demo was running of 2 7800's in SLI.

I bet you are confusing "2 Geforce 6800 or a next-gen card" with that.

Can someone explain the hang up on the pci-e 4x bus ?

The dev kits have a cell and over that 4x pci-e bus are g70 cards with thier own pool of fast ram. Its most likely 256bit bus with 650+ mhz ram. This should be faster than the bandwidth the rsx will have acess too in the actual ps3 unit

In the PS3 spec, you also have FlexIO bandwidth from XDR-DRAM to Cell to RSX instead of PCI-E 4x, so 256bit bus for the dev kit is offset in the PS3.

 

[jvd]

jvd wrote:
Can someone explain the hang up on the pci-e 4x bus ?

The dev kits have a cell and over that 4x pci-e bus are g70 cards with thier own pool of fast ram. Its most likely 256bit bus with 650+ mhz ram. This should be faster than the bandwidth the rsx will have acess too in the actual ps3 unit

In the PS3 spec, you also have FlexIO bandwidth from XDR-DRAM to Cell to RSX instead of PCI-E 4x, so 256bit bus for the dev kit is offset in the PS3.

Except you will never get the full xdr bandwidth to the rsx considering the cell chip has to acess it too .

 

[Coola]

 

[one]

jvd wrote:
Can someone explain the hang up on the pci-e 4x bus ?

The dev kits have a cell and over that 4x pci-e bus are g70 cards with thier own pool of fast ram. Its most likely 256bit bus with 650+ mhz ram. This should be faster than the bandwidth the rsx will have acess too in the actual ps3 unit

In the PS3 spec, you also have FlexIO bandwidth from XDR-DRAM to Cell to RSX instead of PCI-E 4x, so 256bit bus for the dev kit is offset in the PS3.

Except you will never get the full xdr bandwidth to the rsx considering the cell chip has to acess it too .

Cell SPE has local store to reduce main memory access and latency...