AMD K6-2 vs K6-3 Super Socket 7 Overclocking

[@tonalpleeb07]

Man, I love this content. Ur so calming and informative.

[@RetroSuperhighway]

Thanks!

[@PJWey]

Takes me back to the 90s, really loved my K6-3 but stability was often tricky just as you’ve shown. Thanks

[@nomoredamnnamestouse]

From my own experience Socket 7 even at stock speeds are significantly worse in terms of stability versus the P6 platforms

[@francis85]

Sometimes you can get away with a faster FSB overclock (K6-2+, K6-III, K6-III+) by disabling the motherboard cache in the BIOS, because the cache chip(s) can't keep up with the bus. But as you said, things running on the AGP and PCI bus can also crash due to being so far out of spec :) Great video, love this era of hardware!

[@geekenspiel]

Well done! I love the K62+/K63+ procs. I even have a badge I made up for the modded K62+ w/ full K63+ cache. :-)

[@RetroSuperhighway]

Thanks! Now I need to find a K6-2+ and mod it so I can get the badge :)

[@tofuguru941]

​@@RetroSuperhighway There's a guy on eBay that sells them. He even got it to 650mhz on a ga-5ax. I think he has some pics of it running 633 on a p5a as well on the listing. He even mentions the modded badge in the description. 😊

[@classic_jam]

I run a K6-2+ at 600MHz. It's pretty awesome. 1MB L3 cache, that L2 cache, and 256MB of PC-100 all cached. UT99 is a good time on that.

[@RetroSuperhighway]

Nice! What board is that on with that much cache? I bet that thing just flies!

[@classic_jam]

Im also averaging around 30 FPS in Unreal Tournament, I wonder why yours is so low on the 605MHz K6? My board is a MVP3-based board, video card is Voodoo 3 1000 16MB

[@classic_jam]

@@RetroSuperhighway EPoX EP-MVP3G-M, it's fully ATX.

[@RetroSuperhighway]

Probably down to my results being in software rendering? I would expect migher frames once the graphics card can get involved. That looks a nice motherboard, I'd like to get a MVP3 based board to try, all my SS7 use the Aladdin V

[@petmey5281]

such nostalgia, my very first build was a K6-2 350 mated to a TMC TI5VG+ super socket 7 motherboard. US Robotics 56K PCI modem, Sound Blaster Live PCI sound card, 128MB cheap ram with a 350W cheap Codegen PSU, STB Riva TNT 16MB GPU, Lite on CD burner, Samsung 8.4GB HDD, Teac 1.44MB FDD, KDS 17" 85HZ monitor. Can't believe I recalled all that from memory. Likely due to the cheap ram/power supply I had to set the AGP GART to the lowest buffer size otherwise system would freeze.

[@RetroSuperhighway]

Haha, yeah, I have a lot of love the SS7 platform. I had a very similar 56K modem too. I know I couldn't really do very much with it, but I am tempted to put one in just to get it to make the dial-up sound again. (I know I'd have to set up my 'own ISP' to get it to work too, seen a few vids on this, it looks do-able).

[@petmey5281]

I'd like to show it to my daughter and let her experience what it was like before high speed internet. @@RetroSuperhighway

[@mesterak]

Great video sir! Thanks for sharing your findings as well as your depth of knowledge. I learned some new things 👍

[@RetroSuperhighway]

Thanks for watching!

[@upgrade1373]

Now I wished I had one of those chips but my motherboard only supports K6-2

[@3dfxvoodoocards6]

Excellent video and benchmarks, like!

[@RetroSuperhighway]

Thanks for the kind words!

[@georgez8859]

K6-3 @600 Great CPU Thanks for the Video

[@RetroSuperhighway]

K6-3 @600MHz, thats a sweet CPU right there!

[@Mini-z1994]

A good showing for the k6-3 cpu for sure, feel free too try performance with some graphics cards too see some cpu performance scaling maybe. While i haven't done any overclocking with the k6-2+ 550 i got running underclocked at 400 mhz in an Asus p55t2p4 (Motherboard limitations heh.) I can imagine that's beating the pentium mmx 200 mhz pretty easily even at 400 mhz.

[@RetroSuperhighway]

I'll be taking a look at performance with some graphics cards in the future for sure. There were a lot of great cards and chipsets around in the late SS7 era, going to be fun trying those out!

[@LeeMc007]

If you had some cash for every time you say cache in this video you'd be a rich man sir ;-) Great video and explanation, enjoy your content, keep it coming. 👍

[@RetroSuperhighway]

Cash for Cache! I like the sound of that :)

[@Tubby.1]

Wenn ich mich richtig erinnere haben die CPUs ab dem K6-3D mit Chomper-XT-Kern die Eigenart, das sie damals den Multiplikator von 2.0 als 6.0 interpretierten. Ich konnte damals meinen AMD K6-3+ entweder mit einem Multiplikator von 5.5 und einem FSB von 110 MHz (605 MHz) oder einem Multiplikator von 6.0 mit einem FSB von 100 MHz (600 MHz) betreiben. Mehr habe ich in meiner Konfiguration damals nicht rausholen können.

[@ViperBenchmarks]

K6-3 or Celeron Mendocino ?

[@ShrineOfLife]

for me, always mendocino - as a socket 370. lovley retro machines - can OC to 566 with ease and run very good for win98 classic gaming!

[@Phil-D83]

K6-2/3+ were awesome overclockers

[@r4z4m4t4z]

thanks, well done!

[@RetroSuperhighway]

Thanks!

[@davidp4456]

This is a bit old hat. These comparisons were well covered 25 years ago.

[@davidp4456]

That was a terrible comparison. You don’t run the K6-2 and K6-3+ at the same clock speed. Also why overclock the motherboard for the K6-2? You should jave run the m/b at 100mhz for both and made the comparison with the cpu multiplier. Also the two chips are on different nm architectures so will need different voltages. They are mot like for like. Also why don’t you just rescale the y-axis instead of cutting the results in half?