Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

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Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby kva » 2017-8-23 @ 15:10

Hello again ;)
I wrote an article about Pentiums Pro and Overdrives. They are all tested in more or less modern software. It is in polish but it doesn't matter that much, charts are universal. Enjoy :)

http://kva.pl/index.php?link=artykul&id_a=9
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby lazibayer » 2017-8-23 @ 15:44

Wow that's a ton of work! These CPUs are sure interesting pieces to possess. Do you have results from Dhrystone benchmarks?
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby kva » 2017-8-23 @ 15:54

It is, benchmarking took about a month (every test was done at least three times, some of them taking forever...) :D . There are more tests working on POD but not working on PPro (because lack of MMX). They will be presented in the next article - POD vs P II.

I should have Dhrystone results, will check later.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby lazibayer » 2017-8-23 @ 17:32

kva wrote:It is, benchmarking took about a month (every test was done at least three times, some of them taking forever...) :D . There are more tests working on POD but not working on PPro (because lack of MMX). They will be presented in the next article - POD vs P II.

I should have Dhrystone results, will check later.


That's exciting as well! Are you testing PII-333? Will they both be tested on the same motherboard?
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby havli » 2017-8-23 @ 20:51

Great article!
I did similar tests (also using Pentium Pro... and many other CPUs) and it really takes a extreme amount of time. :happy:
Your methodology is quite similar to mine - do you also plan to compare PPro to Pentium MMX, K6, Cyrix M2 or other CPUs from this era? P6 is really strong when running true 32-bit SW.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby luckybob » 2017-8-23 @ 21:00

NEAT!

reading now. thank you google translate!
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby GL1zdA » 2017-8-23 @ 21:31

No Quake benchmark?
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby luckybob » 2017-8-23 @ 21:41

The issue with a quake benchmark is the video card choice. I did some testing and Quake loves uncacheable speculative write combining (USWC) and not all motherboards/bioses/video cards support this. The Matrox G200 did and it's a 100% increase in FPS with it enabled.

I did some crude testing here: viewtopic.php?f=46&t=34666&start=100#p497684

BTW, still reading through!
It is a mistake to think you can solve any major problems just with potatoes.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby kva » 2017-8-24 @ 10:19

I was testing CPUs in a way which allows me to compare anything with anything. The goal is to build a database of scores CPUs from 486 to moderns CPUs. Quake is not suitable for that.

Next one is about VIA C3 vs VIA C7 (both 1Ghz). A little spoiler - C7 isn't always better ;)

Dhrystone:
POD: 149443247
PPRO 256K: 85418837
PPRO 1MB: 83557957

There is no mistake, 256K is slightly faster (every test taken 3 times, AVG presented). I have no idea why.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby RJDog » 2017-8-24 @ 11:46

Wow, POD retailed for $599? That seems like a great deal, for the time. Given that, I'm surprised they aren't easier to come by these days.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby kva » 2017-8-24 @ 12:30

It wasn't that good. When it was released there was already Pentium II 400 on the market. Better of course than POD. And for PII you could buy mobos with AGP and SD-Ram. That also made a big difference.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby kva » 2017-9-17 @ 15:43

Is anyone interested in comparison dual Pentium II Overdrive vs dual Celeron 366 (Abit BP6 ftw ;) )?
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby F2bnp » 2017-9-17 @ 18:16

Sure!
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby luckybob » 2017-9-17 @ 18:17

+1
It is a mistake to think you can solve any major problems just with potatoes.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby mrau » 2017-9-17 @ 19:33

kva wrote:Is anyone interested in comparison dual Pentium II Overdrive vs dual Celeron 366 (Abit BP6 ftw ;) )?

what software?
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby kva » 2017-9-17 @ 19:38

Same as above, windows XP SP3, the same set of benchmarks/programs. But I am open for every suggestion and can test for you whatever you want ;)
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby mrau » 2017-9-17 @ 20:36

kva wrote:Same as above, windows XP SP3, the same set of benchmarks/programs. But I am open for every suggestion and can test for you whatever you want ;)

quake 3 in smp? :D also i always wondered if the memory controller on those multi-ppro boards was up to the task (ie does memory transfer double when 2 cpus are used on tasks where memory speed is the only real factor)
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby Jade Falcon » 2017-9-17 @ 22:53

I second quake3
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby kva » 2017-9-18 @ 12:55

mrau wrote:also i always wondered if the memory controller on those multi-ppro boards was up to the task (ie does memory transfer double when 2 cpus are used on tasks where memory speed is the only real factor)


No, memory controller is integrated into chipset so it doesn't matter if there is one or two CPUs. So in memory intensive jobs scalling is rather bad. You can se it here:
Image

Two PODs are much faster than PPro 1MB cache but the difference in this test is small, thats because of much too slow memory transfers.

I will do my best with Quake.
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Re: Pentium Pro 256K vs Pentium Pro 1MB vs Pentium II Overdrive

Postby luckybob » 2017-9-18 @ 23:29

instead of winrar- can you give 7zip a shot? I did on my dual p-pro. and posted my results here viewtopic.php?f=61&t=47460&hilit=7zip
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