RE: X51-R1, Want to upgrade from Nvidia GeForce GTX 645

You have the R1. The R2 did not ship with the i3-3220. You cannot use any video card that uses more than 150w on our 330w power supply. The video card must not be bigger than 9.5" x 4.3". I can only recommend the Dell OEM video cards =

FPDH3 Nvidia GeForce GTX 660, D15P2-40 V2, 1.5GB, DVI-I/DVI-D/DP/HDMI

106DK AMD Radeon R9 270, RD14D-P1-70, 2GB, DVI-I/DVI-D/DP/HDMI

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