The worst PC components in existence?

[lamedude]

All Itanics, i820/i840 and its buggy MTH, most non Intel chipset from the last century (nForce was also garbage looking back), Willamette/Northwood Celerons (not even worth the sand they're made with), overheating Cyrix 6x86, GeforceFX 5800, most ATI Rage cards, PCI Sound Blasters depending on who you ask, and for shits'n'giggles buggy Pentiums (the issue was overblown but Ifdiv jokes).
Northwood P4s were good, but Athlon XPs were almost as fast for half the cost.  If BD had launched in 09 as planned it would've been alright, but ATI happened.