hmm well, according to SysInfo, my BPPC is faster than an A4000/040 and definatly faster than the 1230IV. I also found that if you don't use the display, and so no chip RAM access, that the 040 on the BPPC is definatly faster than the 1230IV. This I have found on my little prime number program which I used to compare different configurations. It doesn't display each prime number which an older version did and is 10 seconds faster on the BPPC040 than the 1230IV