So, a DDR3 memory module won’t fit in a DDR4 slot And a DDR4 stick is incompatible with a DDR3 slot Besides the physical differences, DDR3 and DDR4 RAM differ in voltages.

Finally, DDR3 memory is a bit shorter than DDR4 2.66 versus 2.74 inches. here look to the notch each DDR notch distance is different from others DDR. keep your DDR chip front-facing as given bellow.

How to identify computer ram ddr1 ddr2 ddr3, DDR4 Identifying the Computer RAM (Random Access Memory) like DDR1, DDR2, DDR3, and DDR4 physically is not so hard if you follow the steps.ĭDR1, DDR2, DDR3, DDR4 is the most using RAM currently in the market.įirst of all confirm is it DDR1, DDR2, DDR3, or Different DDR’s SDRAM.