G.Skills Ripjaws 4 modules performed well in the comparison testing exceeding the performance of the comparison modules in almost every test at the XMP 2.0 rated speeds and timings. That in and of itself, is a reason to get a set of modules with tighter timings in the speed bin of your choosing. At 2800MHz, the G.Skill modules are at the extreme end of the spectrum if I was looking at DDR3 modules, but in DDR4 modules, it is right in the module of the G.Skill lineup that has X99 certified kits up to 3333MHz as long as your pocket can handle the hit for modules rated that high.