How much without sound?

The Serpent Rider wrote on 2020-12-19, 14:00:

How much without sound?

demo1.dm2
640x480: 46.0 fps
800x600: 39.9 fps
SLI 640x480: 46.1 fps
SLI 800x600: 46.6 fps
SLI 1024x768: 42.6 fps
SLI 640x480, nosound: 48.1 fps
SLI 800x600:, nosound 48 fps
SLI 1024x768, nosound: 43.5 fps

Changing Vsync on/off didn't make any difference.
Changing 8-bit textures on/off didn't make any difference.

crusher.dm2
640x480: 21.1 fps
800x600: 20.5 fps
SLI 640x480: 21.0 fps
SLI 800x600: 21.6 fps
SLI 1024x768: 20.9 fps
SLI 640x480, nosound: 22.5 fps
SLI 800x600:, nosound 22 fps
SLI 1024x768, nosound: 22.2 fps

Changing Vsync on/off didn't make any difference.
Changing 8-bit textures on/off didn't make any difference.

Yep, more or less right.
Re: Graphics card for Pentium Pro build

Interesting... My overclocked Pentium MMX233 @ 266 MHz with a Voodoo Banshee gets pretty close to these results (with sound, I got 45 FPS in Quake 2 demo1.dm2 and 87 FPS in GLQuake).
I would have expected the Pentium Pro to be much faster in Quake 2.

Quake 2 is sensitive to I/O bus speed. In MDK2, equally clocked Pentium Pro is 40% faster.

If your board supports 75mhz FSB you could try an overclock to 225 and see if anything blows up

You don't need to overclock FSB. Most if not all boards had 3.5x multiplier and Pentium Pro is unlocked.

I overclocked to 233MHz by setting the multipler to 3.5. Here are some results. Only very minor gains. Game also crashed once, probably due to the overclock, I didn't increase voltage. I'm going to set it back to 200MHz, this overclock was just to see if/how it works, don't really need it at 233Mhz. Also, didn't test SLI this time as I already removed the 2nd Voodoo from the PC - it's going to another PC.

demo1.dm2
640x480, software rendering: 12.3 fps
800x600, software rendering: 9.3 fps
640x480, CPU at 233Mhz, software rendering: 13.6 fps
800x600, CPU at 233Mhz, software rendering: 10.1 fps
640x480: 46.0 fps
800x600: 39.9 fps
640x480, CPU at 233Mhz: 48.9 fps
800x600, CPU at 233Mhz: 41.4 fps
640x480, CPU at 233Mhz, nosound: 50.7 fps
800x600, CPU at 233Mhz, nosound: 42.5 fps
SLI 640x480: 46.1 fps
SLI 800x600: 46.6 fps
SLI 1024x768: 42.6 fps
SLI 640x480, nosound: 48.1 fps
SLI 800x600:, nosound 48 fps
SLI 1024x768, nosound: 43.5 fps

crusher.dm2
640x480: 21.1 fps
800x600: 20.5 fps
640x480, CPU at 233Mhz: 22.7 fps
800x600, CPU at 233Mhz: 22.3 fps
640x480, CPU at 233Mhz, nosound: 25.0 fps
800x600, CPU at 233Mhz, nosound: 23.6 fps
SLI 640x480: 21.0 fps
SLI 800x600: 21.6 fps
SLI 1024x768: 20.9 fps
SLI 640x480, nosound: 22.5 fps
SLI 800x600:, nosound 22 fps
SLI 1024x768, nosound: 22.2 fps

Also found this great article from Phil on Voodoo 2 scaling where he compares large variety of CPUs: https://www.philscomputerlab.com/voodoo-2-and … ng-project.html

Looking at it, my numbers seem to be in the ballpark with MMX233 CPU in single card config and significantly higher in SLI. E.g. here are some from Phil's tests for Quake 2 timedemo.

800x600, P200: 29.5
800x600, MMX200: 36.6
800x600, MMX233: 39.9
Mine were 39.9 at PPro 200Mhz and 41.4 at PPro 233Mhz

800x600 SLI, P200: 29.5
800x600 SLI, MMX200: 36.8
800x600 SLI, MMX233: 40.4
Mine were 46.6 at PPro 200Mhz

The reason I mention 225mhz was because I never had luck overclocking 512kb ppros any faster than that.

Also Q2 would run a lot faster at 75x3 than 66x3.5

My single chip boards all had 75mhz FSB and most of my ppro 180’s would OC to 233.

My guess is that Intel could have sold ppro233’s if they only offered it in 256kb varieties, the bigger cache modules likely couldn’t clock any higher than 200

rmay635703 wrote on 2020-12-20, 17:39:

The reason I mention 225mhz was because I never had luck overclocking 512kb ppros any faster than that. […]
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The reason I mention 225mhz was because I never had luck overclocking 512kb ppros any faster than that.

Also Q2 would run a lot faster at 75x3 than 66x3.5

My single chip boards all had 75mhz FSB and most of my ppro 180’s would OC to 233.

My guess is that Intel could have sold ppro233’s if they only offered it in 256kb varieties, the bigger cache modules likely couldn’t clock any higher than 200

Interesting, would like to try the 75fsb but I don't think my Intel VS440FX motherboard supports it.

My guess is that Intel could have sold ppro233’s if they only offered it in 256kb varieties, the bigger cache modules likely couldn’t clock any higher than 200

Not really. They just didn't had enough headroom, so to speak, to make 233 Mhz models. Shipping a CPU which edges on maximum stable clocks as stock speed could potentially lead to a disaster. Due to variables like quality of VRM, ambient temperature and cooling.

The Serpent Rider wrote on 2020-12-23, 17:03:

My guess is that Intel could have sold ppro233’s if they only offered it in 256kb varieties, the bigger cache modules likely couldn’t clock any higher than 200

Not really. They just didn't had enough headroom, so to speak, to make 233 Mhz models. Shipping a CPU which edges on maximum stable clocks as stock speed could potentially lead to a disaster. Due to variables like quality of VRM, ambient temperature and cooling.

Why then did all 2 dozen of my 256k PPROs all OC above 200mhz (all rated 180mhz) but only half the 512kb units OC at all and if they do OC never more than 225?
One of the 180’s would go faster than 233mhz and ran stable in XP.
(I never touched voltage or cooling, got many years under Windows 2000 out of the old Omnitech workstations)

From what I remember the 256k unit cache all were “old process” and the 512kb units were new but despite this the 512k units are nearly impossible to overclock, yet the old 256k units all were excellent overclockers, even the single 150 I had would run 200mhz.

Ah well

rmay635703 wrote on 2020-12-24, 21:16:

Why then did all 2 dozen of my 256k PPROs all OC above 200mhz (all rated 180mhz) but only half the 512kb units OC at all and if […]
Show full quote

The Serpent Rider wrote on 2020-12-23, 17:03:

My guess is that Intel could have sold ppro233’s if they only offered it in 256kb varieties, the bigger cache modules likely couldn’t clock any higher than 200

Not really. They just didn't had enough headroom, so to speak, to make 233 Mhz models. Shipping a CPU which edges on maximum stable clocks as stock speed could potentially lead to a disaster. Due to variables like quality of VRM, ambient temperature and cooling.

Why then did all 2 dozen of my 256k PPROs all OC above 200mhz (all rated 180mhz) but only half the 512kb units OC at all and if they do OC never more than 225?
One of the 180’s would go faster than 233mhz and ran stable in XP.
(I never touched voltage or cooling, got many years under Windows 2000 out of the old Omnitech workstations)

From what I remember the 256k unit cache all were “old process” and the 512kb units were new but despite this the 512k units are nearly impossible to overclock, yet the old 256k units all were excellent overclockers, even the single 150 I had would run 200mhz.

Ah well

Yep ... cruel situations. I do remember times where My P4 Prescott didn't wan't to overclock much, but Northwood with half of cache was more eager to overclock (we're talking about stability here...) ....