Frametime Analysis

We present a more in-depth analysis than just average FPS to show how the framerate changes over time, which helps highlight FPS drops. Minimum FPS at both the 95th and 99th percentile are reported in these charts, too. A second chart, a histogram, shows shape and spread for the frametime data—how tightly grouped the measurements are. The "IQR" result is called "Interquartile Range," which is an outlier-resistant statistical value that tells us the range in the middle of the frametime distribution.

In the following charts, we are comparing two retail memory kits. The sub-timings are based on the individual XMP profiles and are not adjusted further. By doing so, these charts represent a direct comparison between 7200 MT/s and 8000 MT/s.

Tests are conducted with the following components:
CPU: Intel Core i9-13900K (Locked P-core 5.5 GHz, E-cores 4.3 GHz)
GPU: PNY GeForce RTX 4090 XLR8 VERTO
Memory (1): XPG Lancer RGB DDR5-7200 AX5U7200C3416G-BLARMLBK (34-46-46-116)
Memory (2): Patriot Xtreme 5 RGB PVXR532G80C38K (38-48-48-84)




Comparing both of these memory kits with low graphical settings helps to illustrate the impact higher frequency memory can have when the limitation is generally based around the CPU at lower resolutions and graphical presets.




Increase the graphical settings; depending on the game, this may be enough to once again be GPU bound and relay on the graphics card. Here however, we still see a fairly large gap between the two.




Once again, raising the game's resolution in Cyberpunk 2077 to 4K and the game becomes completely GPU bound, leaving the CPU often waiting on the graphics card to finish each calculation. With a margin of error of 3%, these two memory kits are indistinguishable at this resolution using an RTX 4090.