Getting a new graphics card

Caa112

Honorable
Jun 6, 2013
16
0
10,510
Hi I want to get a new graphics card currently have a NVIDIA GeForce GT 520 and wanted to upgrade to a Radeon HD 7850 but my friend told me my computer would explode if I got the new graphics card without upgrading my power supply since I only have a 500 watt one so I was wondering if I got a 630 watt power supply would I be able to use the Radeon 7850 my computer specs are

CPU: AMD Phenom 2 X4 965

Ram: 16 GB of DDR3

Motherboard: Gigabyte GA-78LMT-USB3

Power supply 500 Watt

Hard Drive: 500 GB

So ya I'm pretty new its the first computer that I made would really appreciate the advice so I don't end up getting the power supply and it doesn't work