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 5600 MT/s memory kits with the same primary timings. The sub-timings are based on the individual XMP profile and are not adjusted further. By doing so, these charts represent a direct comparison between a 32 GB (2x 16 GB) and 48 GB (2x 24 GB) memory kit.

Tests are conducted with the following components: Intel Core i9-13900K (Locked P-core 5.5 GHz, E-cores 4.3 GHz), PNY GeForce RTX 4090 XLR8 VERTO




Comparing both these memory kits with low graphical settings helps shows how the sub-timings can affect the frame-rate in the 1% lows, and the average.




Increase the graphical settings, depending on the game, this may be enough that we are once again GPU bound and relay on the graphics card. Here there is a still a small gap between the two memory kits.




Raising the game's resolution to 4K and Cyberpunk 2077 becomes completely GPU bound, leaving the CPU often waiting on the graphics card to finish each calculation. With a margin of error of 5%, these two memory kits are indistinguishable at this resolution using a RTX 4090.