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[ET] Happy 20th birthday, Pentium - Page 8

post #71 of 88
Oh, just to add a little historical context, nowadays those of us who were around during the Pentium days have fond memories of them, but in the beginning it wasn't so. The Pentium only really took off in 1995 with the affordable Pentium 75 Mhz and the release of Windows 95, before that a 486 DX2 and DX4 was plenty for Dos 6.x and Windows 3.1. Back in 1993 the Pentium at 60 Mhz ran hot for those days, and it was slower than the 486 DX4 100 Mhz in integer math (the most important metric back then), not to mention the FDIV bug was found and eventually Intel had to allow for anybody to send in their CPU and have a new one without the bug.

So, it was a bumpy start. When Intel transitioned from 800 nm to 600 nm and released the revised 75 Mhz, without the FDIV bug, that is when things really started to get going for the Pentium, as at 75 Mhz it was now faster in every regard compared to the 486 DX4, and ran cooler than the first Pentiums. But the 486 design still kept going for a few more years because AMD released the 5x86, which was actually a clock quadrupled 486 (a 486 DX5 if you will), manufactured with newer technology compared to the DX4's, running at 133 Mhz and had a 16 KB write-back L1 cache, which gave it a boost compared to Intel's first 486 DX4, that had 16 KB of write through cache (Intel later released a model with 16 KB of write-back cache), and even more compared to Cyrix (and IBM branded) (and possibly AMD's too, I'm not sure) 486 DX4's that only had 8 KB of L1. The 133 Mhz clockspeed allowed it to compete in integer math with the Pentium 75 Mhz, and was thus a very good (and cheaper and more compatible than the problematic Pentium OverDrive) upgrade to existing 486 systems.
Edited by tpi2007 - 3/23/13 at 10:27pm
 
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post #72 of 88
I still have the P3 I mentioned earlier lying around in one of the 2 boxes of computing treasure I have.

I also have a P4 clocked at 3.8GHz stock!

I'll have to assemble a retro rig out of some of this stuff soon. Maybe a P3 system if I can find a motherboard ancient enough, or pit my P4 and Socket 939 rigs against each other.
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post #73 of 88
damn, now I feel old lol
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post #74 of 88
Quote:
Originally Posted by Eatfoodnow View Post

Hey intel, to celebrate, how about an unlocked pentium for less than $100? biggrin.gif

That would be awesome! Dual cores are so easy to keep cool with an OC. My wife's AMD PhII 955 hit 4 Ghz on air with temps in the low 40's. Intel's chips run much cooler, so I bet 5 Ghz on air would be easy-peasy with an unlocked Pentium.
post #75 of 88
salute to my first pc with its Pentium 1 100mhz 2 mb graphics card 4mb ram and a cd rom drive.
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post #76 of 88
I have a slew of older parts and some complete systems that predate the Pentium branding by a long margin, but I remember my first Pentium better than most of those older ones. It was a Packard Bell system with a 75Mhz P1, 80MB HDD I think it was, I think 4MB RAM(which I upgraded to 8 and then 16 later) and a 9.6K modem(which I upgraded to an 14.4K later, then again to a 56K external even later). I had such fond memories of that thing that I popped the top off of it at a machine shop I used to work at, and put a thin plate of plexiglass over the die area, so that you could see the internals of the actual die. I then drilled a hole through a corner of the ceramic(which, btw was way harder than I would have ever imagined) and made a keychain out of it. I still have it on my keyring today!

Makes me want to go out in my garage and sift through all my old systems/parts to see what all I still have. I know I have a working Commodore 64 and Vic-20 out there along with a ton of 3/486 chips of varying speeds. Lowest I can remember using was a i386DX 20Mhz, but I may have some older than that.
post #77 of 88
Thanks for the info, guys!
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post #78 of 88
My school gave me a old P2 233Mhz ... then they had a extra P3 Itanium 1000Mhz ... I about died that it was 1000Mhz.

Then my next build was a Pentium Celeron P4 2.4 and after that been the Dual core and AMD and then finally where I am today with a Xeon smile.gif Loving it!
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post #79 of 88
Those Slot A/Slot 1 CPUs were the best for TEC cooling. I had a Slot P3 running under two TECs at -20C idle.
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post #80 of 88
i still have a fat ass pentium 1 toshiba satellite laptop that still works (albeit, battery is a paper weight, NiCd chemistry tongue.gif) :| 133 mHz if i remember correctly... 32mB ram biggrin.gif 2 GB hard drive.

i post pics if i can find it in muh pile of boxes.
    
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