is 550w enough for r7 265x oc?

Solution
for some strange reason the antec vp 550w isn't as good of quality as the vp 450w. they are exactly the same, except the 550w has an extra pcie connector that you will not need and is 100w more, which you still dont need. that website doesn't have very good power supplies. if your not planning on upgrading your system anytime soon, just get the vp450. your i3-540 is aging and if you decide to go with any video card better than the 750ti/r7-265, you would have a huge cpu bottleneck.

otherwise honestly your rig isn't going to be pushing any of these power supplies anywhere near their max so you should be more than fine with any of them.
for some strange reason the antec vp 550w isn't as good of quality as the vp 450w. they are exactly the same, except the 550w has an extra pcie connector that you will not need and is 100w more, which you still dont need. that website doesn't have very good power supplies. if your not planning on upgrading your system anytime soon, just get the vp450. your i3-540 is aging and if you decide to go with any video card better than the 750ti/r7-265, you would have a huge cpu bottleneck.

otherwise honestly your rig isn't going to be pushing any of these power supplies anywhere near their max so you should be more than fine with any of them.
 
Solution