Which of these 16GB DDR3 sets are faster

[Humbug]

Patriot 16GB(2x8GB) Viper III DDR3 1866MHz 10-11-10-30

https://www.amazon.com/Patriot-1866MHz-Desktop-Memory-Heatsink/dp/B00453R90W/ref=sr_1_56?ie=UTF8&qid=1517748528&sr=8-56&keywords=2x8gb+ddr3&refinements=p_n_condition-type%3A6461716011%2Cp_72%3A2661618011

 

 

or

 

Corsair Vengeance Pro 16GB (2x8GB) DDR3 DRAM 2133MHz 11-12-12-27

https://www.amazon.com/Corsair-Vengeance-2x8GB-2133MHz-Memory/dp/B019HVNT3C/ref=sr_1_64?ie=UTF8&qid=1517748528&sr=8-64&keywords=2x8gb+ddr3&refinements=p_n_condition-type%3A6461716011%2Cp_72%3A2661618011

 

[FloRolf]

Obviously the 2133mhz kit. (corsair) 

[Electronics Wizardy]

The speed difference is very small here, less than a 1% difference.

[iRileyx]

1 minute ago, FloRolf said:

Obviously the 2133mhz kit. 

May not be so obvious, the CAS timings can play a part in it.. though I have no clue how to do the maths for working out the latency for each set  

[airdeano]

basically the same:

1866  at CAS10

vs

2133 at CAS 11

but the vengeance pro eaks out with tighter timings. deffo not worth the $30 extra, though.

 

[Humbug]

8 hours ago, RKRiley said:

May not be so obvious, the CAS timings can play a part in it.. 

Exactly, that's why I listed the exact timings as well as the clocks.

[geo3]

13 hours ago, RKRiley said:

May not be so obvious, the CAS timings can play a part in it.. though I have no clue how to do the maths for working out the latency for each set  

The CAS number displayed is the count of cycles. So 1/Mhz * CAS with smaller results being better. Or Mhz / CAS with larger results being better. 

[DarkSmith2]

15 hours ago, Humbug said:

Patriot 16GB(2x8GB) Viper III DDR3 1866MHz 10-11-10-30

(CL10 / 933)*1000 = 10,71ns

 

 

vs

15 hours ago, Humbug said:

Corsair Vengeance Pro 16GB (2x8GB) DDR3 DRAM 2133MHz 11-12-12-27

(CL11/1066,5)*1000 = 10,31ns

 

[Humbug]

9 minutes ago, DarkSmith2 said:

(CL10 / 933)*1000 = 10,71ns

 

 

vs

(CL11/1066,5)*1000 = 10,31ns

 

Thank you. That's helpful.

So the 2nd, 3rd and 4th (TRAS) numbers are less important than the 1st (CAS)?