Can you explain which ram kit is better?
Can you explain which ram kit is better?
Both units are made by the same company, 4x8GB Samsung Bdie. The main differences lie in timing and frequency: one runs at 14-14-14-34 with 8.75ns timing and 3200Hz, the other at 17-17-17-37 with 8.50ns timing and 4000MHz. The slight variation in timing is minimal, only 0.25ns apart. People often choose the first option because it’s nearly identical in timing, yet it costs $150 more. Frequency still plays a role since higher MHz can affect performance, even with similar timing differences.
What coin is this? You don't need to pay that much extra. You could simply speed up the 3200 CL14 unit to match or exceed its performance, provided you have a strong CPU and board. If you're using an AMD system, you'd be slowing it down with the 4000MHz model, or you'd lose out on gains. Updated July 15, 2020 by Mateyyy
This set includes b die. You might achieve similar results to the 4000 kit with minor adjustments. If imc is sufficient, proceed. Edited July 15, 2020 by TofuHaroto
You achieve higher bandwidth while maintaining comparable latency. The 3200Mhz setup can be overclocked to around 4000Mhz with adjustments like 17-17-18-37 at 1.4V, whereas my rig runs at 4000Mhz 17-18-18-37 with increased Vdimm.
Yes, the frequency difference of 0.25 ns is negligible for your settings.
The upper limit of data speed is determined mainly by the kit's frequency. 4GHz × 8 bytes × 2 channels equals 64GB/s whereas 3.2GHz × 8 bytes × 2 channels equals 51.2GB/s. The real speed will vary based on how efficiently the RAM uses the maximum possible speed, which is influenced by your timing settings and delays. Both kits show almost the same delay, so their efficiency in using bandwidth will be comparable, around 90%. Therefore, the 4GHz model could achieve about 57.6GB/s and the 3.2GHz model around 47.08GB/s. In everyday use, the difference is likely minor, but the 4GHz option performs noticeably better.
Thank you for clarifying that the 4,000MHz difference is significant in theory.
Extreme Asus is available, but I'm having trouble finding the 10900k right now...