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ATI to roll out R500 GPU for Xbox 2 in 1Q 2005 (?)
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| Nicholas Andrade 2004-10-02, 6:46 am |
| I expect it will end up being a cross of the R500 and R600 much like how
the CPU in the current XBox shares celeron and pentium 3 aspects.
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| Just Askin' 2004-10-03, 6:46 am |
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"Nicholas Andrade" <sdnick484@nospam.yahoo.com> wrote in message
news:3os7d.5402$nj.3370@newssvr13.news.prodigy.com...
quote:
>I expect it will end up being a cross of the R500 and R600 much like how
>the CPU in the current XBox shares celeron and pentium 3 aspects.
I thought it *was* a Celeron.
What does the Xbox CPU have that a Celeron 733 doesn't?
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| Scott H 2004-10-03, 9:46 am |
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"Just Askin'" <Justin@c.com> wrote in message
news:DM2dncNqZMEjI8LcRVnyuw@pipex.net...
quote:
>
> "Nicholas Andrade" <sdnick484@nospam.yahoo.com> wrote in message
> news:3os7d.5402$nj.3370@newssvr13.news.prodigy.com...
>
> I thought it *was* a Celeron.
>
> What does the Xbox CPU have that a Celeron 733 doesn't?
I think I've seen the comment that it was a custom Celeron chip, but I
think the only thing custom about it was its size. The GPU in the Xbox is a
blend between the Geforce 2 and 3, if I recall.
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| Vortex 2004-10-03, 5:50 pm |
| "Scott H" <sheathx013@yahoo.com> wrote in message news:<_WR7d.2419$Xk1.2050@trnddc02>...
quote:
> "Just Askin'" <Justin@c.com> wrote in message
> news:DM2dncNqZMEjI8LcRVnyuw@pipex.net...
>
> I think I've seen the comment that it was a custom Celeron chip, but I
> think the only thing custom about it was its size. The GPU in the Xbox is a
> blend between the Geforce 2 and 3, if I recall.
the GPU in Xbox is called the NV2A. it is inbetween a GeForce 3 (NV20)
and GeForce 4 (NV25).
NV2A and NV25 both have 2 geometry & lighting engines (vertex
shaders), unlike the GeForce 3s which have just 1. Xbox NV2A also
has more elements for pixel shading than even the NV25 / GeForce4. but
NV2A lacks some of the things in NV25 / GeForce 4 so Xbox is not
exactly as powerful as NV25 in some areas.
(also note that when I mention GeForce 4, in no way does that include
the non-GF4 chip called GF4MX which is not a GF4 at all.)
the Xbox CPU is basicly a Pentium III with half the L2 cache. the
Xbox CPU is more advanced than a Celeron because the L2 cache is just
like that of the Pentium III because the cache is 8 way assosiative
whereas the L2 cache in Celeron is 2 way assosiative. or something
like that. i cant explain what that means without doing a bit of
research. it means basicly that Xbox CPU is more like a P3 than a
Cele.
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| Vortex 2004-10-04, 12:47 am |
| Nicholas Andrade <sdnick484@nospam.yahoo.com> wrote in message news:<3os7d.5402$nj.3370@newssvr13.news.prodigy.com>...
quote:
> I expect it will end up being a cross of the R500 and R600 much like how
> the CPU in the current XBox shares celeron and pentium 3 aspects.
Yeah, I expect a cross of the R500 and R600 much like how the *GPU* in
Xbox shares GeForce 3 (NV20) and GeForce 4 Ti (NV25) aspects.
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| Company Man 2004-10-04, 12:47 am |
| more L2 cache
"Just Askin'" <Justin@c.com> wrote in message
news:DM2dncNqZMEjI8LcRVnyuw@pipex.net...
quote:
>
> "Nicholas Andrade" <sdnick484@nospam.yahoo.com> wrote in message
> news:3os7d.5402$nj.3370@newssvr13.news.prodigy.com...
>
> I thought it *was* a Celeron.
>
> What does the Xbox CPU have that a Celeron 733 doesn't?
>
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