This is going to be a bit difficult but I will try to get them all.
1. 286 from my mom's work. I still have this.
2. 386, not sure where this came from.
3. Pentium II 266 - very large upgrade. Had this for awhile.
4. Pentium III 866 - Never worked particularly great and, as the clock speed suggests, this was a late model so it didn't stick around for very long.
5. Pentium IV 1.6 - Another large upgrade. I got this to coincide with moving to XP more or less.
6. Pentium IV HT 2.8 - I ended up being on this for many years, well past the point at which it had stopped being a reasonable choice for a gaming computer. What ultimately forced me to switch was the death of AGP (and also the presence of money in my wallet).
7. AMD 64 X2 6400+ - I bought this for virtually nothing to get my 4870 build started. It was old when I bought it but it worked well enough for the year or so I had it in my PC.
8. AMD Phenom II X3 720 - Replaced the X2 after about a year. I actually have a computer that still uses this; it works surprisingly well in 2019.
9. Intel i7 920 - My dad decided he no longer had any use for the completely overkill desktop that he'd built so he sold me the CPU. I ended up using this for nearly ten years. Again, the performance this puts out in modern games is surprising, to say the least. It took a long time for a significant upgrade to be available at a price that I was willing to buy in at.
10. AMD Ryzen 5 1600 - Current CPU. Fairly noticeable improvement from the old i7, so I'm satisfied. I'll be surprised if I go another ten years without upgrading again, but it's entirely possible.
1. 286 from my mom's work. I still have this.
2. 386, not sure where this came from.
3. Pentium II 266 - very large upgrade. Had this for awhile.
4. Pentium III 866 - Never worked particularly great and, as the clock speed suggests, this was a late model so it didn't stick around for very long.
5. Pentium IV 1.6 - Another large upgrade. I got this to coincide with moving to XP more or less.
6. Pentium IV HT 2.8 - I ended up being on this for many years, well past the point at which it had stopped being a reasonable choice for a gaming computer. What ultimately forced me to switch was the death of AGP (and also the presence of money in my wallet).
7. AMD 64 X2 6400+ - I bought this for virtually nothing to get my 4870 build started. It was old when I bought it but it worked well enough for the year or so I had it in my PC.
8. AMD Phenom II X3 720 - Replaced the X2 after about a year. I actually have a computer that still uses this; it works surprisingly well in 2019.
9. Intel i7 920 - My dad decided he no longer had any use for the completely overkill desktop that he'd built so he sold me the CPU. I ended up using this for nearly ten years. Again, the performance this puts out in modern games is surprising, to say the least. It took a long time for a significant upgrade to be available at a price that I was willing to buy in at.
10. AMD Ryzen 5 1600 - Current CPU. Fairly noticeable improvement from the old i7, so I'm satisfied. I'll be surprised if I go another ten years without upgrading again, but it's entirely possible.