Accordingly, what is the difference between ddr3 and ddr5?
As a general rule of thumb, 256 bit is twice as fast as 128 bit. In memory clock speed 400mHz is twice faster than 200mHz. GDDR5 is used in GPU's only, whereas DDR3 is used in PC's, too. GDDR5 is ill-suited to many small tasks, and that's where DDR3 performs a little better.
Similarly, can I put ddr5 RAM in a ddr3 slot? YES! a motherboard with DDR3 RAM will accept both DDR3 and DDR5 GPUs. Like the other answers state; you only need the consider the PCIe slot for the GPU. The type of RAM slots (DDR3 or DDR4) are quite irrelevant to the GPU's vRAM.
Keeping this in consideration, what is ddr3 ddr4 ddr5?
DDR4 memory was displayed in prototype form at the beginning of 2013, and DDR5 is coming, but is not yet available for system memory. Referred to as GDDR5 memory, it has much higher bandwidth than DDR3 and can transfer more data for better graphical rendering.
Is ddr4 better than ddr3?
DDR4 RAM looks faster on paperDDR4 RAM can transfer data at a rate between 2133MT/s and 4266MT/s, while DDR3 RAM can only hit transfer data rates between 800MT/s and 2133MT/s. Another number you'll see is the clock speed, which is how fast the RAM can read and write data.
