On Mar 4, 2:26 am, Bug Filler <mozbug...@gmail.com> wrote:
> On 3月4日, 上午4時01分, lkcl <luke.leigh...@gmail.com> wrote:
>
> >  *sigh* yes i honestly do not know enough, here, but i am looking at
> > perhaps MIPS 1074k which has MIPS-DSP (which has had gcc SIMD
> > acceleration since ooo 2006?  2007?), but since i then discovered the
> > stunning performance of loongon 3A, and the ICT's plans to put that
> > into 28nm, it would be foolish not to look at that as well.
>
> So you are looking into the future...
>
> In the hotchips presentation[1], it's said that the CPU core used in
> Loongson 2H
> and 3B, i.e. GS464V, shall be able to decode H.264 1080P at over
> 100FPS.

 *whistles*.

 http://www.hotchips.org/uploads/archive22/HC22.24.630-1-Hu-GS464V-godson.pdf

 yyyeeee godds.  wow.  yeah i missed that in the first cursory glance,
i didn't realise i'd downloaded that pdf already.  i should pay more
attention :)

 single core.  1ghz 1080p.  wow.

 crucial question of course: if the 2G is 3 watts in 65nm @ 1ghz, and
has a 64-bit FP unit, what's the 2H going to be like in 28nm @ 1ghz,
with a 256-bit SIMD and all the other extensions that make it ROCK! :)

 65nm down to 28nm, it's a straight jump to 1/4 of 3 watts - 0.75
watts, then - but all the extra stuff... did someone say that the 16-
core version, 28nm, 1ghz, would still be only around 15 watts?  that'd
make a single-core roughly... yeah, just under 1 watt which would
be ... well... damn good would be an understatement.

l.

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