All engines oprated by A330's
CF6-80E1A2 - 68000 lb. Mostly operated by A330-200's
CF6-80E1A3 - 72000 lb. The newest one from GE.
CF6-80E1A4 - 68000 lb. The same as A2 but A330-300's
Pratt & Whitney
PW4164 - 64000 lb (only Thai flies with this engine)
PW4168 - 68000 lb
PW4168A - slightly more than 68000 lb. Mostly operared on high-gross (X) versions.
TRENT772-60 - 72000 lb. Flies only on non-high-gross A330-300's
TRENT772-60B - 72000 lb. A330-200/200X and -300X