By: Michael S (already5chosen.delete@this.yahoo.com), April 11, 2021 3:23 am
Room: Moderated Discussions
Andrey (andrey.semashev.delete@this.gmail.com) on April 11, 2021 1:42 am wrote:
> Robert Williams (crispysilicon.delete@this.gmail.com) on April 10, 2021 7:05 pm wrote:
> > me (me.delete@this.me.com) on April 10, 2021 12:43 pm wrote:
> > > > HEDT is about server-grade price category. It's power consumption and heat is also higher, and this
> > > > is a factor for home use. So no, in all honesty you can't say HEDT brought AVX-512 to consumers.
> > > >
> > >
> > > 7800X's MSRP was $389. Yeah the platform costs would be a bit more too, but for a scientific developer
> > > it doesn't seem that big of an expense to find out if AVX-512 would be worthwhile to pursue.
> >
> > Cannon Lake NUC had AVX-512 too. Yeah, Cannon Lake, remember
> > that? The one CPU Intel spit out @ 10nm originally,
> > only available in a single configuration @ 2c(4t). But it is cheap if you need to develop AVX-512.
>
> Maybe it's just me, but I wouldn't buy a machine that I would never use other than to test
> AVX-512. Conventional desktop CPUs back then were 4 cores/8 threads, so Cannon Lake as the
> main rig CPU would be a downgrade. Besides, I don't think availability was good anyway.
>
Few years ago I actually had bought Gigabyte BRIX with i3-7100U, when my main motivation was to have something at home to play with AVX2.
Fortunately, apart from that objective, which did not last more than few weeks anyway, this miniPC found very intensive use by other family members.
> As for 7800X, 140W is kinda a lot, and yes, the rest of the platform would be more expensive than
> desktop. Later that year Coffee Lake-S was released, which offered 6c/12t at lower prices. Or you
> could get a Ryzen 7 1700 with 8c/16t and still cheaper than 7800X. Yes, 7800X was an option if
> you desperately needed AVX-512, but I don't think it was compelling enough for most developers.
>
Also, I would think that at majority of real-world workloads, Skylake-X/Cascade Lake is few percents slower clock-for-clock than "normal" Sky/Kaby/Coffee/etc lakes. At least, that's an impression that I got from looking at SPECInt scores.
> Robert Williams (crispysilicon.delete@this.gmail.com) on April 10, 2021 7:05 pm wrote:
> > me (me.delete@this.me.com) on April 10, 2021 12:43 pm wrote:
> > > > HEDT is about server-grade price category. It's power consumption and heat is also higher, and this
> > > > is a factor for home use. So no, in all honesty you can't say HEDT brought AVX-512 to consumers.
> > > >
> > >
> > > 7800X's MSRP was $389. Yeah the platform costs would be a bit more too, but for a scientific developer
> > > it doesn't seem that big of an expense to find out if AVX-512 would be worthwhile to pursue.
> >
> > Cannon Lake NUC had AVX-512 too. Yeah, Cannon Lake, remember
> > that? The one CPU Intel spit out @ 10nm originally,
> > only available in a single configuration @ 2c(4t). But it is cheap if you need to develop AVX-512.
>
> Maybe it's just me, but I wouldn't buy a machine that I would never use other than to test
> AVX-512. Conventional desktop CPUs back then were 4 cores/8 threads, so Cannon Lake as the
> main rig CPU would be a downgrade. Besides, I don't think availability was good anyway.
>
Few years ago I actually had bought Gigabyte BRIX with i3-7100U, when my main motivation was to have something at home to play with AVX2.
Fortunately, apart from that objective, which did not last more than few weeks anyway, this miniPC found very intensive use by other family members.
> As for 7800X, 140W is kinda a lot, and yes, the rest of the platform would be more expensive than
> desktop. Later that year Coffee Lake-S was released, which offered 6c/12t at lower prices. Or you
> could get a Ryzen 7 1700 with 8c/16t and still cheaper than 7800X. Yes, 7800X was an option if
> you desperately needed AVX-512, but I don't think it was compelling enough for most developers.
>
Also, I would think that at majority of real-world workloads, Skylake-X/Cascade Lake is few percents slower clock-for-clock than "normal" Sky/Kaby/Coffee/etc lakes. At least, that's an impression that I got from looking at SPECInt scores.