Hi, my current PC consists of: i5-3350P 3.1GHz, Nvidia GTX 650 1GB, 8GB RAM DDR3 1600MHz and 2TB HDD. I am still pretty satisfied with its performance although it is a bit old but since I am a photographer and I'm using apps like photoshop I would like to make all the processes faster. So I decieded to buy 2x8GB of RAM and also 240GB SSD. My question is. Is the 350W power supply efficient enough?