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These are different revisions of the same Patriot memory. Adding them to your existing sticks shouldn't cause problems, but always check compatibility with your motherboard and system requirements.
4400 Mhz is a high frequency, but current DDR4 CPUs can't fully utilize those rates. What RAM configuration do you have right now? Performance will depend on speed and delay, because if one stick has a 3200MHz and another a 3000MHz, the overall speed will be limited to around 3000MHz.
Everything is working well, as I mentioned. They’re already running in a 2x8GB setup and configured at 4000 cl15/16/16 in BIOS on the i9 10850K CPU, which is non-overclocked except for removing power limits. The motherboard is an MSI Z490 Tomahawk. I experienced a performance improvement from them earlier, though it might not have been worth the cost. I haven’t upgraded to slower memory yet; instead, I’m aiming for 32GB total (4x8GB) to match the same level. I still hope someone will provide the right guidance on my question.
ryzen 4000 and 5000 apus models are compatible with the 5500/5700 series. The earlier ones support 4400-4600 MHz, while the newer ones reach around 5000 MHz with stable performance. Both use similar voltage and current settings, typically around 1.45V for VCCSA/IO. Raising these values slightly might help, but it’s not recommended for everyday use. The 4400C19 and 19-19-19 Viper models share the same specifications as the 3200C14. They won’t drastically change your setup, though you should avoid over-tightening the CLK. It’s safe to upgrade to another kit in this range or a 3200/3600C14 if needed. You might find used units available, and clocking four sticks is feasible without hitting board limits. Just reach out to @RONOTHAN## for more specifics on DDR4 details.
These Intel speeds offer a bit more flexibility, but many chips fall short of 4000MT/s for Gear 1. In reality, most don’t reach over 4133. The 4500 Gear 1 spec is quite underwhelming, essentially no model hits that mark. 4400 has been compatible with 4x8GB on an MSI Z590 board I used (likely a Z590-A Pro with a 10600K), and it performed well. Of course, using Micron Rev.E rather than B die might slightly affect speeds, but 4266 should still function.
I didn’t configure every setting myself to achieve the best performance, so I used a preset in BIOS and checked stability. It was a sensible choice compared to other options I saw. Plus, I didn’t want to experiment with voltages unless I was manually adjusting everything. I had previously explored this subject but didn’t realize how challenging it would be to sell this kit in Poland unless I kept prices very low. That’s why I decided to stick with it.
This Samsung B die is essentially identical to the Patriot Viper Steel 4400 CL19-19-19, so it should function properly. The main concerns might be with limited memory sizes at high transfer rates, not compatibility problems. I’d hesitate to buy it mainly because of the cost—it’s a premium build and whether it delivers value for a 4-year-old CPU like the 10850K is uncertain.
i wondered why i noticed some users getting 13th/14th generation chips capable of handling 4500 gear 1 on some ddr4 oc megathread, but i can't find them anymore. it seems intel imc might have just been downgraded after the 10th generation, aside from supporting 5200+ gear 2. you don't really need it if you're targeting 9th/10th generation, as there are plenty of bdie 4000-4400 options you can use. just make sure it's set for 9th/10th gen and stick with 3200c14 or 4400c19 bdie to avoid any issues. minor tweaks might be enough, usually only voltage matters, and you probably won<|pad|>'s would need to adjust around 1.7v+. beyond that, ~1.7-1.8v is the limit before needing maxmem, which can reduce ram capacity. imc degradation typically starts above 1.45v vccsa/io, and vdimm doesn't affect it at all.
for cheaper options, consider 3200c14 kits (same samsung bdie) or used bdie kits. it's unlikely they can push beyond 3600 unless you're using older boards.