I have a Gigabyte Z690 Aorus Master that I bought in March, 2022. I have an i9-12900K on it along with 4 sticks of G.Skill DDR5 RAM. The RAM kits I have are F5-6000J3636F16GX2-TZ5RK, which run natively at 6000 Mhz with timings of 36-36-36-96. If you've read any of my earlier posts, you know that I have been experimenting with various settings to improve the RAM performance, with new options being possible every time Gigabyte updates their BIOS for this board.
In mid-November, Gigabyte released bios version F21 that introduces two new options for DDR5: 1) High Bandwidth; and 2) Low Latency. When I tried these settings, they didn't seem to really do much until Gigabyte released bios version F22 this month (December 2022). Now with XMP Profile 1 selected and both of these settings switched to "Enabled", my read and write speeds are substantially improved by at least 10-15% and latency is also substantially reduced by about 20%. Interestingly, these 2 settings only allow the system to boot when an XMP profile is selected and left unmodified. If you try to change of the timings or ram speed with either of the two new options "Enabled", the system won't boot. That said, while I was able to get my system to boot my timings tightened and speed increased to 6400 Mhz, the read and write speeds and latency were not as good at 6400 Mhz as they are now with the native XMP profile selected and the two new settings set to "Enabled."
In typical fashion, Gigabyte provides no information on what these two settings actually do, but they do seem to provide a substantial DDR5 performance boost. Check to see if Gigabyte has released a new bios for your DDR5 board and look for the "High Bandwidth" and "Low Latency" settings on the "Tweaker" page. You should see a substantial boost in DDR5 performance with both options set to "Enabled" and XMP Profile 1 selected for your kits. Enjoy!
In mid-November, Gigabyte released bios version F21 that introduces two new options for DDR5: 1) High Bandwidth; and 2) Low Latency. When I tried these settings, they didn't seem to really do much until Gigabyte released bios version F22 this month (December 2022). Now with XMP Profile 1 selected and both of these settings switched to "Enabled", my read and write speeds are substantially improved by at least 10-15% and latency is also substantially reduced by about 20%. Interestingly, these 2 settings only allow the system to boot when an XMP profile is selected and left unmodified. If you try to change of the timings or ram speed with either of the two new options "Enabled", the system won't boot. That said, while I was able to get my system to boot my timings tightened and speed increased to 6400 Mhz, the read and write speeds and latency were not as good at 6400 Mhz as they are now with the native XMP profile selected and the two new settings set to "Enabled."
In typical fashion, Gigabyte provides no information on what these two settings actually do, but they do seem to provide a substantial DDR5 performance boost. Check to see if Gigabyte has released a new bios for your DDR5 board and look for the "High Bandwidth" and "Low Latency" settings on the "Tweaker" page. You should see a substantial boost in DDR5 performance with both options set to "Enabled" and XMP Profile 1 selected for your kits. Enjoy!
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