It appears that the most popular kits out there are: CL14-3200Mhz CL16-3600Mhz CL17/CL18-4000Mhz With Bdie we are talking about 14-14-14, 16-16-16 and 17-18-18/18-18-18. It's more common to have b-die with those tigher timing then with micron or hynix or adata. Which uses looser timings of 14-16-16, 16-19-19 and 18-20-20, for example. From what I've researched though that higher frequency memory with tighter timing can improve frame rates. So much so it would look like you upgraded gpu (depending on the game). It would appear that anyone upgrading from cl16-2133, c15-3000, cl16-3200 memory kits would notice a pretty noticeable improvement in frame rates with the aforementioned kits above. Which can make you think twice of upgrading gpu. The point of those examples is to show high latency lower frequency kits can actually hinder performance (as I found out). Now I understand that not all memory IC's are the same. Micron and Hynix or Adata don't typically offer 16-16-16, as found from Samsung's B-die for example. Typically you will see something like 16-19-19. Yet in those 2 examples at the same frequency IE: 3600Mhz results can still be within the ball park of each other. At 16-16-16 you might see better frame rates during explosions and other effects going on vs 16-19-19. Caveat is what CPU you are using. However, if the timing is at CL14, you would see a difference. All of this still depends on those games most sensitive to memory. It's not automatic in "all games". Sometimes, you might not see any changes. Other times the changes are so massive you would have thought that the GPU was OC. It depends on the game. Example: But there is a flip side that I haven't talked about. What's the breaking point? Where the memory timing is so loose that it negates the benefit of the higher frequency? Well, that depends on the IC (Samsung Bdie, Hynx, Micron E-Die, Adata) used and in what configuration. However, it's very possible that 3200Mhz CL14 can perform similularly to 3600Mhz CL18 Look at Warzone starting at 4:02, for example. In any case, your input is encourage as this is a learning process for me as well. One more thing, it appears that those kits that offers extremely low timings like 3600Mhz at CL14 or 4000Mhz at CL16 that require 1.45v or 1.50v can be hampered do to heat. As there appears to you need to be within a certain thermal range or else the IC's can throttle down do to heat. If, that's true I would always stick with 1.35V for DDR4. Is there a memory subsection on this forum?