The Phenom II X4 955 has 1 week to live & had the longest lifespan of any CPU. It has more sentimental value because it ran for 8 years. There weren't any major improvements until the last year. The best Macs in 2016 were just as slow. Before that was a dual 2.4Ghz Opteron which lasted 5 years & had 8GB of RAM. The brief 8GB configuration was actually more than the last 8 years. Before that was briefly a dual 1.4Ghz Athlon which came after a longer stint with a dual 933Mhz Pentium III. The Pentium III was actually faster than the Athlon but the lion was ignorant & endured years of pain with the Athlon. The RAM before Opteron was probably 1-2GB. Before that was the dual 550Mhz Celeron & the one that started it all, the Cyrix PR200, with 64MB & 32MB. The Phenom II grew to thrash & thrash when running any modern programs. Hard to believe the lion kingdom went as long as it did on 4GB of RAM. Today, it's unthinkable. ...