looking at buying ram for my new build cant understand why one of these is cheaper than the other it's the same ram?
https://uk.pcpartpicker.com/product/MYH48d/corsair-memory-cmk16gx4m2b3000c15
https://uk.pcpartpicker.com/product...b-2-x-8gb-ddr4-3000-memory-cmk16gx4m2d3000c16
https://uk.pcpartpicker.com/product/MYH48d/corsair-memory-cmk16gx4m2b3000c15
https://uk.pcpartpicker.com/product...b-2-x-8gb-ddr4-3000-memory-cmk16gx4m2d3000c16