Comparison of 4x4 and 8x2 dual-rank overclocking potential
Comparison of 4x4 and 8x2 dual-rank overclocking potential
I’m thinking about moving quickly to the AM4 platform since I plan to sell this P6T Deluxe. My main reason for switching is the low cost of Samsung’s revision, and I’m skeptical that a 4600 with poor timing from the revision D will outperform dual-rank revision at 3800/4000 CL14/13. I found a decent deal on an untested X470 fatal1ty board for $23 and a used B350M + X4 for $950, which is closer to $30 alone. I expect my P6T with X5660 to fetch around $50-60, so I might upgrade it later if I can get better boards and keep trading up instead of selling now. There are also some budgeted, broken boards I could potentially repair, adding extra value. From a voltage perspective, I anticipate running 1.6-1.8V daily (though likely lower due to aluminum foil heatspread), so I’ll just list this in case it impacts the comparison. I’m hoping to get under 5000MHz with solid timings like micron RAMs. I might be able to find some micron RAMs from people selling mixed-brand chips, aiming for a Rev J version as an upgraded non-binned revision (D9DP). It should handle over 4600CL18, though I’m unsure of the exact model. I’ll write off Hi-Nix since microchips will likely be better or worse than 4Gbit, but I’ll skip it unless I find a reliable burner screen. Overall, dual-rank sticks might have issues with poor PCB and signal interference, while four single-rank sticks could handle higher clocks for four-dimensions. I’m leaning toward the X470 fatal1ty because of its near-top specs, but it could be a good alternative if I can find suitable RAM. Any thoughts or other options you have?
Using two sticks will be simpler for the memory controller compared to four sticks, which means you're more likely to achieve a higher frequency with the 2x8 configuration over the 4x4, provided everything else remains consistent (identical dies, same maker, etc.)
You're facing a challenge with your setup needing 1.37v for the target. Adjust accordingly.
E falls under a group of ICs that ignore voltage details like b the one and won't break down even with huge voltages applied. Assume no restriction for E die, the only constraint is the IC itself. Be careful when going beyond 1.7V because it might slightly affect performance. For dies such as these, 1.6V is usually better. It also works at 2V, which is technically perfect but cooling limits and IC aging come into play. Pushing 1.7V into those resistors will be safe, though for Zen and Zen+ you'd likely need around 3200/3600 C13/12 based on voltage.
The topology might influence the fatality, but it's unclear. For high-end performance, you could likely use 4400+ quad single-rank modules.
Uncertain due to the IMCA consideration, yet I've noticed some users reaching over 4000 with ease on Taichi boards using a 3600.
It seems the CPU options will include 3600 and 5500. I’m especially keen on the 5500 since a 5600 with disabled IGPU would match the same IMC. If capability matters, these APUs will likely run their clock speeds high, which is great. I also think about creating OC content around this setup—good IMC and solid performance are key. If capability improves to something like 4400+ with RAM boosted to 4400+, that would be even better. The halved cache is acceptable compared to a 4650g. If it’s too cheap, I might go for a 3100 (maybe negotiate a bit).