no, i use default and recommended settings or the fastest - which is available in the bios/mainboard.

You'll get a nice boost if you set the registers to optimal. No BIOSes optimise the performance registers on the cx5x86.

feipoa wrote:

You'll get a nice boost if you set the registers to optimal. No BIOSes optimise the performance registers on the cx5x86.

you could do similar trick at many cpus (k6, ppro, 6x, etc), but practically just a few people used it in the past. this is the reason, i test with default settings and timings (it is also slower). maybe later i will add it for the overclocked section.

dx2-66 added

CPU ranking (default settings):
40,77% Intel 486DX 33
57,84% Intel 486DX 50
71,78% Intel 486DX 66
99,40% Intel OverDrive DX4 100
99,54% Intel DX4 100
100,00% Intel DX4 100 WB
103,23% Cyrix 5x86 100
108,07% Cyrix 5x86 120
112,70% AMD 5x86 133

CPU ranking (fastest settings, overclock):
130,37% Cyrix 5x86 120
144,36% AMD 5x86 133 @ 160/40

CPU MHz scaling (performance / internal clock):
84,74% AMD 5x86 133
90,06% Cyrix 5x86 120
99,40% Intel OverDrive DX4 100
99,54% Intel DX4 100
100,00% Intel DX4 100 WB
103,23% Cyrix 5x86 100
108,76% Intel 486DX 66
115,68% Intel 486DX 50
123,55% Intel 486DX 33

arncht wrote:

you could do similar trick at many cpus (k6, ppro, 6x, etc),

Which tricks are those? I haven't seen such broad reaching disabled enhancements on any other CPU.

I have some VLB graphics cards.
How would you rate them.

Stealth 24
Stealth 64
Cirrus logic 5426
Cirrus logic 5428
Cirrus logic 5429
S3 xxxx

Stealth64 (depends on the exact model, but all are very good)
Here go all the rest from your list. S3 xxxx (what models? as some are very good and some not so in DOS).

Intel486dx33 wrote:

I have some VLB graphics cards. How would you rate them. […]
Show full quote

I have some VLB graphics cards.
How would you rate them.

Stealth 24
Stealth 64
Cirrus logic 5426
Cirrus logic 5428
Cirrus logic 5429
S3 xxxx

Check the chipset on them. The 5429 is there, the 5428 is similar.

feipoa wrote:

arncht wrote:

you could do similar trick at many cpus (k6, ppro, 6x, etc),

Which tricks are those? I haven't seen such broad reaching disabled enhancements on any other CPU.

Fastvid, cxt, etc

CXT = chompter extended. Isn't this a version of the K6-2 rather than a software-based speed-up tool?

While I would include fastvid as a speed-up "trick" for graphics, I believe this trick is incomparable to the Cyrix 5x86 feature set. This is my opinion, but I do not consider re-enabling originally intended hardware features of the 5x86 as software tricks. Cyrix disabled these features to increase broad spectrum compatibility. There is one board which enabled most of these features by default, the M919 v3.4. I would not consider this capability as overclocked features.

feipoa wrote:

CXT = chompter extended. Isn't this a version of the K6-2 rather than a software-based speed-up tool?

While I would include fastvid as a speed-up "trick" for graphics, I believe this trick is incomparable to the Cyrix 5x86 feature set. This is my opinion, but I do not consider re-enabling originally intended hardware features of the 5x86 as software tricks. Cyrix disabled these features to increase broad spectrum compatibility. There is one board which enabled most of these features by default, the M919 v3.4. I would not consider this capability as overclocked features.

Every util uses a special feature of the cpu, i cannot see any difference. The p3b also supported the write combining from the bios for the ppro based cpus, or at the video cards is also possible to change the lbf, timings.

It is on you, what you use, i wanted to do the most authentic way.

Yes it is true, we all end up doing whatever we want...

I have Cirrus 5434 -cards and noticed that those are blazing fast. I get 30MB/s with VGASPD.EXE benchmark. With 3DBench it gives 100. I'm running Am5x86 @150MHz (3x50MHz).
And yes, it likes 50MHz VLB-bus speed 😀