30 years Intel Pentium
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- Опубликовано: 20 мар 2023
- Hey folks,
It´s a #Pentium! 30 years ago, exactly on March 22nd 1993, the Pentium was born. This date marks a unique milestone in the CPU x86 history.
In my video, I explain the technical features of the first Pentium family spanning the period between 1993 and 1997 when the first four Pentium versions have been introduced to the market including the first Pentium MMX. I also compare the silicon die size in detail and talk about the P5 microarchitecture and its advantages over the predecessor CPU i486. In addition, the famous FDIV bug is explained and I was trying to pin down microscopically the stepping change which led to the P5 version where the FDVI bug was successfully eliminated.
In the last section of the video, I zoom further into the respective four Pentium´s microarchitectures and reveal the beautiful CMOS structures focussing on the FPU, the integer unit, the clock section, branch prediction unit, data cache section, etc. For this I make extensive use of my metallurgical microscope.
I hope you enjoy this birthday video dedicated to the Pentium!
CPU Duke
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Chapters
00:04 The Pentium Birthday
01:22 Intel CPU transistor count
02:16 The First Pentium Family
04:28 Decapping the Pentiums
05:09 Heatgun action on the 75MHz P54C
06:22 Displaying all decapped Pentium version
07:00 Process Node Development of Pentium
07:43 The P5 Microarchitecture
08:54 The FDIV bug explained
10:20 Comparing P5 SX835 & SX974
10:49 Die pictures of P5 SX835 & SX974
12:20 Microscopy of P5 SX835
18:16 Microscopy of P5 SX974
20:52 It’s a wrap!
21:29 Microscopy of P54C
26:59 Microscopy of P54CS
30:35 Microscopy of P55C
33:22 Outro 
Наука
Great video. I still have memories of the Pentium era. My first PC had a Pentium 133, good times.
Pentium is a legend. This was a really nice video showing us why!
Thanks for this cool video and your awesome microscope shots and paired with this epic music… inspiring to watch. ☺️👍🏻
Incredible images. A full zoom from full CPU to transistor would be even more amazing ! Could you do that ?
i still use my Pentium 4, still a good cpu today for many things
"Numbers could not be trademarked". But folklore claims Peugeot had some sort of trademark on car model names like "504" with a zero in the middle. Resulting in Porsche changing the name of the 901 to 911 before it was released.
I thought Evilmonkey would have already left a message :)
Nice, thanks!
Only the Pentium MMX mobile with the Tillamook core has 250 nm. The original P55C Desktop version has 350 nm. Also a little bit bigger than the P54CS, because of the +1,2 million more transistors.
Why dont we have 128bit architecture?
Great job, some of the best chips for a microscope I think. Do you not have a pentium pro?
Yes, I made an uncapping video. Great chip!
i486 is not the first 32bit Intel CPU, i386 is.
Yes, 😂 shit happens!
a little tip: Speed things up a bit. This could have been a 20-22 Minute Video without much loss. beside that: awesome content
Thanks for the tip
I stopped at the graph for waay too long, cause it's too messed-up in history:
1. Why is 8-bit overlapping with 4 and 16-bit, but 32 and 64 are not overlapping? Overlapping is good if you account for product life, but that is extremely difficult to assess. If you account for the last product released, maybe, but it's still wrong for the next reasons.
2. How come you graph the 386SX, but not the original 386 (later renamed to DX after SX launch)? 386 was in 1986, 386SX was 1988.
3. 386SX is a 32-bit CPU, just line 8088 and 80188 are 16-bit, not 8-bit (assumption of reason for ovelapping 8/16). 8085 is the last 8-bit in you graph.