Memory Performance: 16GB DDR3-1333 to DDR3-2400 on Ivy Bridge IGP with G.Skillby Ian Cutress on October 18, 2012 12:00 PM EST
USB 3.0 Backup
Our backup testing takes a typical set of user files – specifically just under 8000 files across 4 GB, some large files but mostly small. For USB 3.0 testing, these files are copied from a 4 GB RAMDisk onto an OCZ Vertex3 which is connected via a SATA 6 Gbps to USB 3.0 device. We use all the USB 3.0 protocols available - the UASP protocol that the ASMedia controller on our test bed affords as well as the chipset driven Intel USB 3.0 under ASUS' Turbo mode. The copy test is conducted using DiskBench, a copying tool with accurate copy timing.
Across the result range, no matter which protocol is used, our copy testing shows up to a 7% decrease in copy times over the USB 3.0 protocol moving from DDR3-1333 to DDR3-2133. In some cases, such as using Intel Turbo mode, the timing levels out around DDR3-1866, but in the case of UASP, the DDR3-2133 C9 kit provides the best result. Interesting to note that in the case of UASP, having a smaller CL value is more important than having a larger speed value.
Similar to our USB 3.0 Backup test, Thunderbolt testing carries the same files directly through to our LittleBig Disk which contains two 120 GB Intel SSDs in RAID-0. The copy test is conducted using DiskBench, a copying tool with accurate copy timing.
Thunderbolt tests are never as consistent as USB timing – the results shown are the average of the best three obtained. Typically the best results come after leaving the Thunderbolt device for 30 seconds or longer after the last copy test as the TB device does an amount of post processing after the data has officially been sent. Nevertheless, a gradual decrease in copy times is exhibited from DDR3-1333 to DDR3-2400.