Estimate Zen 2 latencies based on various settings.

This calculator is wildly inaccurate, apparently the timing assumptions of the five samples were pretty far off, working with real data, BRB! discussion Memory Data Rate Memory Channels CAS Latency IMC Divider IF Frequency MT/s: Channels: CAS : 0.5X: MHz : Auto Memory Designation Bandwidth Raw Latency1 Memory Controller Frequency Bandwidth Latency (unknown) Infinity Fabric Frequency Bandwidth Latency Totals (Single Chiplet) Average Bandwidth Burst Bandwidth Latency

1: Raw RAM latency is only one component of total RAM latency.



Note: Zen 2's IMC may have been reworked to favor latency over bandwidth. When more data is available, the IMC bandwidth value can be calculated.



Note: The burst bandwidth assumes the IF links are capable of delivering twice the bandwidth as the memory - either by using two links in a dual chiplet CPU or by an improvement in IF. This has not been confirmed.



Note: Removed four claimed and outlier results on June 03, 2019.





Note: this works best in Firefox. Chrome isn't very good... move mouse after setting a value if you're using corporate-ware!