Thanks to everyone who commented for the tips! I appreciate it. You made me recall some of the features of these Athlon processors with Windsor or Brisbane cores. Unfortunately (or maybe fortunately) the Brisbane 5400+ ADO5400IAA5DO (G2) was gone when I finally decided to buy it. But I found another candidate for about EUR6:
Athlon 64 X2 5600+, Windsor core (90 nm), ADA5600IAA6CZ (F3): 2800 MHz, 14x, 2x1024 kB cache, 1.30-1.35 V (89 W).
I think it will be good enough for o'c tryout having a multi of 14 and it's Windsor F3 stepping. The other option left is Brisbane 5600+ ADO5600IAA5DO (G2), x14.5, as Windsor 6000+ ADA6000IAA6CZ (F3) is way beyond the reasonable price for such a not-so-old hardware and the slightly cheaper ADX6000IAA6CZ (F3) by default is a "space heater" (125 W) 😁
The final "battle":
#4 Athlon 64 X2 5600+, Brisbane core (65 nm), ADO5600IAA5DO (G2): 2900 MHz, 14.5x, 2x512 kB cache, 1.325-1.375 V (65 W) (possible problems with RAM dividers)
VS
#5 Athlon 64 X2 5600+, Windsor core (90 nm), ADA5600IAA6CZ (F3): 2800 MHz, 14x, 2x1024 kB cache, 1.30-1.35 V (89 W)
I think I'm leaning more towards the one with the Windsor core, but I'm concerned about its the higher TDP and how much potential for o'c-ing it has left.
from СМ630 to Ryzen gen. 3
engineer's five pennies: this world goes south since everything's run by financiers and economists
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