G.Skill's Trident Z F4-3400C16D-GTZ modules are from top to bottom a high quality set of memory. Let's start with the stock performance. In every test run, the Trident Z modules finished first in every test but three. In those three tests the performance gap was minimal at best between the top two sets of high speed DDR4 modules. When overclocked, the Trident Z modules followed the Patriot modules in only three tests. Again with margins small enough that you could call it a draw. All in all a very impressive performance from this set of memory from G.Skill.