If I have GDDR5 Graphics Card, then am I supposed to get DDR5 Ram for it to be compatible?

Solution
gddr5 ram is only on gpus, they have ddr3 for motherboards and they are releasing ddr4 very soon, but you just need to pick up some ddr3
Your motherboard needs DDR3.
The graphics card will have GDDR5 soldered on to the pcb and can not be changed.
You definitely want both for best performance.
The GDDR5 is used only by the video card. The DDR3 is used by the processor and to store information for the video card.