Sisoft Sandra XI SP4 is designed to test the theoretical power of a complete system and individual components. The numbers taken though are, again, purely theoretical and may not represent real world performance. Higher numbers represent better performance in memory bandwidth. The chart was based off averaged results of the unbuffered bandwidth scores.
Results: On Sandra Xi SP4 DDR3 at 1375MHz the Kingston CL5 kit scored in at 7,359 MB/Sec versus the 7203 MB/Sec on the CL7 kit. The spread between the fastest and slowest kit was just 653MB/Sec, which is a significant 9.7% difference in performance.
WinRAR has a multithreaded version of the RAR compression algorithm, which improves the compression speed on computers with several CPU, dual core CPU and processors with hyperthreading technology. Multithreading is enabled by default, but you can disable it in “General” part of “Settings” dialog.
Results: The WinRAR 3.70 benchmarking results graphed out nicely and showed that the CL9 and CL8 modules were a bit slower than the Kingston HyperX and OCZ Platinum CL7 memory kits. Kingston’s HyperX kits pulled out in the lead here, with the CL5 Ultra low-latency kit leading over their previous kit by 3.8% thanks to nothing more than tighter timings. The spread between the slowest kit (Super Talent PC3-10666 CL8) and the fastest (Kingston HyperX PC3-11000 UL) was 15%.