Question Difference between these two DRAMs?

[Pyneappel]

Hello,

Can someone tell me the difference between these two memories? I don't understand why the Crucial one does not work with my mobo.

CMK32GX4M2A2666C16 - Corsair Vengeance LPX 32GB (2x16GB) DDR4 DRAM 2666MHz (PC4-21300) C16 Memory Kit
Amazon

CT2K16G4DFD8266 - Crucial 32GB Kit (16GBx2) DDR4 2666 MT/s (PC4-21300) DR X8 DIMM 288-Pin Memory
Amazon

Is MT/s different than MHZ? Is the C16 or DR X8 significant?

PCPartPicker thought the Crucial memory was compatible, so I'm trying to understand what additional nuances I need to pay attention to selecting memory in the future.

TIA.

 

[CountMike]

Hello,

Can someone tell me the difference between these two memories? I don't understand why the Crucial one does not work with my mobo.

CMK32GX4M2A2666C16 - Corsair Vengeance LPX 32GB (2x16GB) DDR4 DRAM 2666MHz (PC4-21300) C16 Memory Kit
Amazon

CT2K16G4DFD8266 - Crucial 32GB Kit (16GBx2) DDR4 2666 MT/s (PC4-21300) DR X8 DIMM 288-Pin Memory
Amazon

Is MT/s different than MHZ? Is the C16 or DR X8 significant?

PCPartPicker thought the Crucial memory was compatible, so I'm trying to understand what additional nuances I need to pay attention to selecting memory in the future.

TIA.

For all practical purposes, yes, MT/s is same as frequency but Cl can affect real performance with same frequency, Lower Cl is better.

 

[Jason H.]

Hello,

Can someone tell me the difference between these two memories? I don't understand why the Crucial one does not work with my mobo.

CMK32GX4M2A2666C16 - Corsair Vengeance LPX 32GB (2x16GB) DDR4 DRAM 2666MHz (PC4-21300) C16 Memory Kit
Amazon

CT2K16G4DFD8266 - Crucial 32GB Kit (16GBx2) DDR4 2666 MT/s (PC4-21300) DR X8 DIMM 288-Pin Memory
Amazon

Is MT/s different than MHZ? Is the C16 or DR X8 significant?

PCPartPicker thought the Crucial memory was compatible, so I'm trying to understand what additional nuances I need to pay attention to selecting memory in the future.

TIA.

Go with corsair. They are both the same speeds but I would pick corsair.