The real reason that the Pentium 4 underperforms!

[Technoid]

The picture says it all

[SitFlyer]

LOL

[Ribbit]

The original Pentium was a good chip (and the only true superscalar CISC ever made, AFAIK). If you could somehow crank it up to P4 clock speeds, I reckon its performance would be quite close to the actual P4.

[Indiana]

Originally posted by Ribbit
...and the only true superscalar CISC ever made, AFAIK...

You're forgetting Motorolas 68060 here, it seems. This was a CISC with many RISC attributes like superscalar as well and gave about Pentium90 performance at 50MHz.

[Umfriend]

Why ever did they stop that good ol' 68k line of processors?
Umf

[ZokesPro]

Hehe, I like the stylish reset button they have on their site!

http://www.afrotechmods.com/reset.htm

[Umfriend]

Zokes, is this an association game thread also? I don;t get it...:?:

[ZokesPro]

Originally posted by Umfriend
Zokes, is this an association game thread also? I don;t get it...:?:

The reset button says "CTRL-ALT-DEL" which I find funny, that's all.


Oh and it comes fromt he same site as Technoid's pic. So techincally in still in contexte!

[Ribbit]

Originally posted by Indiana
You're forgetting Motorolas 68060 here, it seems. This was a CISC with many RISC attributes like superscalar as well and gave about Pentium90 performance at 50MHz.

I don't know much about the '060. I do remember reading a quote (which I'm never going to find now) from a Motorola engineer when the '060 and Pentium were still in development, where he basically said "The 68060 is going to be good, but the 586 [as it was still called] is going to be much faster than it anyway". So your P90/060-50 comparison surprises me. I'll have to go find some benchmarks.

Umf, they still make the m68K (in a way) - they're optimised for embedded systems now and they're called 'ColdFire'.

[PowerHungry]

Yeah, I used an M68HC11 for my embedded control class. It was fun, except when I had to wrestle with the horrible C compiler.

[Kooldino]

Originally posted by Ribbit
The original Pentium was a good chip (and the only true superscalar CISC ever made, AFAIK). If you could somehow crank it up to P4 clock speeds, I reckon its performance would be quite close to the actual P4.

Pentium 1 would likely kill a P4 clock for clock with a few minor tweaks.

[Ribbit]

The M68HC11 is different from the the M68K (i.e. 680x0)...

Let's see... Take a Pentium running at 3GHz. Now a Pentium Pro at 180MHz is supposedly twice as fast as a Pentium at 150MHz (according to Intel at the time of PPro's release), so a 3GHz Pentium can be assumed to be as fast as a PPro 1.8GHz. Now the PPro and PIII cores are the same, so let's assume that our fictional 3GHz Pentium is as fast as a (equally fictional) 1.8GHz PIII. The PIII is about as fast as the Athlon clock-for-clock, so that's an Athlon 1.8Ghz. The Athlon at 1.8GHz has a PR of what, 2200+? So assuming AMD's ratings are accurate (we've made a lot of assumptions, one more won't hurt), a 3GHz Pentium would be about as fast as a 2.2GHz P4, other things being equal. Not too shabby, if you ask me.

[PowerHungry]

I stand corrected.

[knirfie]

I think with a few minor changes such as 512kb on die cache the Pentium would score a little better then that.

[Technoid]

just check the ICP and count ;-)