Performance
The performance has been measured on a test platform based on the Intel Core i7 5820K processor and the ASUS Rampage V Extreme motherboard. Most of the benchmarks used are free and the results should be easy to compare.
For test purposes, the processor frequency has been set to 4.2GHz while the cache clock has been set to 3.5GHz which is easy to achieve on every available X99 motherboard. It is also easier to see the differences between memory kits when the cache frequency is higher. The X99 platform is designed for computer enthusiasts and overclockers so I assume that most readers interested in the memory performance on this platform will try overclocking.
AIDA64 Cache and Memory benchmark
AIDA64 is showing a slightly higher performance than the Crucial 2133 CL15 memory but it is still far from the DDR4-2666 or higher clocked memory. The memory writes are based more on the memory controller and the cache clock, so the differences are not so visible.
HyperPi 32M
HyperPi 32M loves fast memory and here we can actually see that. The ADATA with its lowest clock in the comparison achieved the slowest time in this benchmark. Probably the dual rank build (as it is the only 32GB kit on the list) helped the Crucial memory kit to make a slightly better time. We still cannot complain as I have seen bigger differences in DDR3 memory.
Cinebench R11.5 & R15
In rendering benchmarks, the results are pretty good and all of the memory kits are not far from each other. Even though there is a big difference in the memory clock, general performance is similar and most users should not see it in daily work.
PCMark 8
Also PCMark 8 is not showing such big differences in performance as the synthetic memory bandwidth tests. Most users should be satisfied about the memory performance even at the standard DDR4-2133 setting while computer enthusiasts better look at the higher series like ADATA XPG Z1.
3DMark Fire Strike Extreme
3DMark Fire Strike Extreme is showing results about the same as PCMark 8. The lower memory performance is visible mainly in the physics tests so this should not affect your gaming experience much; and if you have a lower budget then the ADATA DDR4-2133 is good enough memory to start with.
