I think P166MMX is the sweetspot. I haven't touched 133mhz's much though, and I'm unaware of MMX 133s (they start at 150mhz IIRC)

Here ya' go:

1      jan feb mar apr may jun jul aug sep oct nov dec
21981                              pc
3    mda
4    cga
5    speaker
61982
7    hgc
81983          xt                              jr
9    ecga
10    pcjr sound
111984                              at  tandy 1000
12    ega
13    tga
14    tandy sound
151985
161986
17    hgc+
18    covox speech thing
191987              ps/2
20    mcga
21    vga
22    8514/a
23    hicc
24    cms
25    innovation ss-2001
26    adlib
27    mt32
281988                                          tandy sl/tl
29    etga
30    tandy dac
31    lapc-I
32    imfc
33    sb
341989              486
35    covox sound master
36    vesa
371990                      ps/1
38    disney sound source
39    sb1.5
40    xga
41    thunderboard
421991
43    pas
44    sb2.0
45    pro1
46    scc-1
47    xga-2
481992
49    pro2
50    pas+
51    pas16
52    adlib gold
53    sb16
54    gus
55    wss
56    tm fcs mk1
57    tm wcs mk1 
581993          pentium
59    scc-1b    
601994

61    gusmax
62    awe32
63    sc88
64    soundscape
651995          mmx                             pro
66    guspnp
67    soundscape elite
68    db50xg
691996
70    3dfx voodoo
71    awe64 
72    sw60xg
731997                  pii

rofl that list has so many errors. it even left out the rendition card and listed voodoo as a 1995 technology

It's a list I put together. That rendition isn't included isn't an "error", and changed voodoo to 96 from wiki. As for "so many errors" you say are there, point them out.

i'd rather you cite reliable sources than make lists on the fly pulled out of somewhere to prove points

I posted to help 2Mourty, not prove a point, whatever point that would be. The release matrix above has been derived by scouring the net from multiple sources. I'm confidant in my search results and don't believe your claim of seeing many errors, but I invite you to point out any errors you do see.

Would this cpu be to fast or slow or just right?

I've read somewhere that the MMXs have a locked multiplier. Don't know if this is true - but you could try it out with your mmx233.
If it is locked I would recommend a "normal" Pentium 200 (P54C; non-MMX). Depending on the mobo you could slow it down to a Pentium 75 for old stuff, whereas a P 200 should be enough for most games published until 1997. I also think that a "slowed" P54C only needs passive cooling.

Here's trixter's guide: http://www.oldskool.org/guides/oldonnew/friendlyboxes

133 MMX was in lots of notebooks. My mother had a Dell Latitude LM with one. It wasn't socket 7 however, but used a Intel Mobile Module thing.

I have a Pentium-S 133MHz based system. System 7 socket. Can play all games quite nice, but, still too fast for certain games older games. Even with the turbo switch off, Sierra games can't identify the SB card for digital output. Otherwise, quite cool. Just don't run very old arcade games on it.

Malik wrote:

I have a Pentium-S 133MHz based system.

not good enough F--

133 MMX was in lots of notebooks.

No...it wasn't.
The mobile version of the MMX processor started at the Pentium 200.
The desktop version of the MMX processor was the P55C, which started at the 166 MHz processor (officially) but then Intel decided to make a 150 MHz version of the P55C also. Nothing below the 150 had the MMX instruction set.

My mother had a Dell Latitude LM with one.

No, your mother had no such thing.

Reality begs to differ:

http://www.cpu-world.com/sspec/SL/SL27C.html

tuyen wrote:

No...it wasn't. The mobile version of the MMX processor started at the Pentium 200. The desktop version of the MMX processor was […]
Show full quote

133 MMX was in lots of notebooks.

No...it wasn't.
The mobile version of the MMX processor started at the Pentium 200.
The desktop version of the MMX processor was the P55C, which started at the 166 MHz processor (officially) but then Intel decided to make a 150 MHz version of the P55C also. Nothing below the 150 had the MMX instruction set.

My mother had a Dell Latitude LM with one.

No, your mother had no such thing.

Anonymous Coward wrote:

Reality begs to differ:

http://www.cpu-world.com/sspec/SL/SL27C.html

Doh! Nice first post tuyen. 😲
Perhaps you want to delete your account and start fresh?

tuyen wrote:

No...it wasn't. The mobile version of the MMX processor started at the Pentium 200. The desktop version of the MMX processor was […]
Show full quote

133 MMX was in lots of notebooks.

No...it wasn't.
The mobile version of the MMX processor started at the Pentium 200.
The desktop version of the MMX processor was the P55C, which started at the 166 MHz processor (officially) but then Intel decided to make a 150 MHz version of the P55C also. Nothing below the 150 had the MMX instruction set.

My mother had a Dell Latitude LM with one.

No, your mother had no such thing.

Heh. I'm not just spouting nonsense, as a web search would quickly tell you and as Anonymous Coward said too. It was a Dell Latitude LM M133ST. I actually upgraded the notebook from 133 to its max of 166 at one point. Found a cheap processor module online.

http://support.dell.com/support/edocs/systems … spmmx/specs.htm
http://www.sandpile.org/impl/p55.htm

I'm curious as to how you came to the conclusion that the mobile PMMX started at 200 MHz.

Here's what the 166 MHz MMX module looked like. I sold the notebook for parts years ago after my bro fried the mobo.

Sorry I have not posted in a while, espcially since some of you have written some pretty interesting stuff on this topic.

Unfortunately I have not been able yet to procure a 133 mmx. On ebay some guy in china is selling them, but he is selling them as collectables not working chips. I don't want to take the gamble, yet.

I had the brilliant idea last night of underclocking my 233 mmx chip to 133 and seeing how it worked. My motherboard for this old dosbox is and Aopen AP5VM with 128mb of fpm edo ram. I set all the jumpers and voila I had a 133 mmx chip.

Everything so far has run fine, all of the sierra and lucasarts games and more importantly anything that uses my cm-32 runs fine, all of the custom sounds load when the game starts.

And as a bonus I can use Zsnes dos at playable framerates because of the mmx instruction set. Granted I have to use mono sound but it almost reminds me of the old days when I played through chronotrigger on ZSNES on an old 486.....

😀

that reminded me that I actually tried to overclock the P133MMX TCP module. There are some spots that look like jumpers, so I got out the old soldering iron and went at it. Only managed to underclock it though, and I'm not sure that it was the multiplier that was changing. So I gave up. 😉