Memory?!?!

[Ickey boy]

i dont understand which of these rams would be better for my build. one has lower cas but lower freq.

 

G.Skill Trident Z RGB 16GB 2400MHz DDR4 - 15-15-15-35-2n   -   £132

https://www.aria.co.uk/SuperSpecials/Other+products/G.Skill+Trident+Z+RGB+16GB+(2x8GB)+2400MHz+DDR4+Memory+?productId=67230

Corsair Vengeance RGB 16GB 3000MHz DDR4 -  15-17-17-32   -   £140

https://www.aria.co.uk/SuperSpecials/Other+products/16GB+(2x8GB)+Corsair+Vengeance+RGB+3000MHz+DDR4+Memory+Kit+-+Black+?productId=68774

 

which would you choose for your build?

[DVA]

The Corsair one due to the better frequency, even though the G. Skill has a lower latency, it's not THAT much more better, you wouldn't be able to tell the difference at all between the latency on these two. 

[Granular]

15 cycles / 2400MHz = 6.3 nanosecond latency

17 cycles / 3000MHz = 5.7 nanosecond latency

The second kit's latency is higher, when measured in clock cycles, but lower in terms of elapsed time.

[Kodiak.]

Corsair has a higher latency but a higher frequency.

G.Skill has a lower latency and a lower frequency.

 

With G.Skill we have 15 cycles at 2400MHZ which is about a 6.3 nanosecond latency. With Corsair the 17 cycles at 3000MHZ represent around a 5.7 nanosecond latency. 

 

This makes Corsair the better choice for lower latency over the elapsed cycles.