Passmark GPU scores: GT440 OEM (144 units @ 594mhz ) 791pts also have a 192bits memory bus...
GT530 ALL 739pts
GT630 ALL 708pts
GT440 (96 units @ 810mhz) 674pts
The standard 440 is a boosted 430 (430 run @ 700mhz)
***I think the OEM 440 never reach the consumer level, they're only for the OEM so a standard 440 is the slower card on the list