Today, we’ll be taking a look at the Gigabyte P450B Power Supply. Now the title gives it away and this is indeed a 450 watt power supply. For us serious gamers this is not even close to the power we need to power those graphics cards. But there is still the need for a power supply of this size if you are doing a simple build. I actually like that there are still power supplies being made at this rating. Honestly there is no need to go way over your power supply needs when building a computer. You can put that money towards parts that will increase the performance. No need to have idle power sitting around. Put it towards some better RAM or something like that. So if you are in the need for a power supply of this size then Gigabyte has you covered and is still making them at this wattage!