So which is technically the better memory? I know the Z is supposed to be for AMD and people have good results with it. I've been OK with the B though I do get some strange stuttering sometimes but I'm not sure if that's due to the ram or not. If your problem is you can't get your XMP kit to run at XMP frequency then start with JEDEC speeds first (2133 to 2666) with XMP DRAM voltage. Scroll down in thiaphoon report to screenshot your XMP timings. I think the JEDEC timings are listed first in the report, then XMP after.

I am very sorry for my post being so long and please excuse me if my English is not perfect, but it's not my native language. said:What was the system build used for the testing? Is it me or it's missing from the article?it seems that part of the article got "cleaned" :) If you get a good match that may be what you really have if there is any doubt. Keep in mind dram calculator is suggesting what you can use. The situation may very from system to system anyway. It may be that the CMK16GX4M2B3200C16 (Optimized for Intel) is using the less expensive and worse hynix chips (they have problems with AM4 but works good with Intel) whileIn fact... Now on my same board with Ryzen 5 2600X I get 3200 14 14 14 34 timings stable. On MSI boards in the BIOS, they have a list of frequency and timings you can TRY and that one also works. So I can run that or 16 18 18 36 no problem. CAS 14 settings is faster a bit but so far only in RAM benchmarks. Not in anything else. The latest that I read was around the end of the year (December '17) and a few buyers of this RAM was saying they could only get up to 2933 mhz so I don't know if that has changed. There were no details, though, so I don't know if it mattered about the motherboard or BIOS. Like I was trying to say to paridoth I think for ver. 4.32 the memory type correlates to "Samsung OEM" in Dram Calculator. Any update or reports of this working at that speed or native 3200 mhz on Ryzen AM4 motherboards? Also, does it matter whether it's a B350 or X370 motherboard?

I am wondering if anyone has this exact RAM/memory and if they have a Ryzen system, what speed they are able to get? I'm sorry to revive an old thread but i'm investigating the issue and I have a theory that i could not confirm or discard as invalid. In particular this is a good way to get what your motherboard decides to use by default for termination, cad bus, and misc values. This provides a base point where you know what values already work. Details about the extent of our regulation by the Financial Conduct Authority are available from us on request.I was trying for weeks to get my memory stable at 3600MHz. I tried many different settings offered by the Ryzen DRAM Calculator and non of them worked for me. I was never able to post after applying values provided by the calculator.

The CMK16GX4M2B3200C16 seems to be optimized for Intel boards. It runs at a slightly higher voltage than the CMK16GX4M2Z3200C16 and supports XMP 2.0. The CMK16GX4M2Z3200C16 appears to be optimized for Ryzen. Part of our exhaustive testing process includes performance and compatibility testing on nearly every motherboard on the market – and a few that aren’t.Hi thanks for the reply, did not get anywhere with dram calc and got so tired to reset cmos every time so funny enough I tried your values and that was the best I could get I think for 3600Mhz on my Tomahawk Max board. The DDR4 form factor is optimized for the latest AMD and Intel DDR4 motherboards and offers higher frequencies, greater bandwidth, and lower power consumption than DDR3 modules. Vengeance LPX DDR4 modules are compatibility-tested across AMD and Intel DDR4 motherboards for reliably fast performance. The Z version is supposed to always be Samsung B die and the B version (the one I have) people say is usually Hytnix. Why do you run WinRAR benchmark that takes about 30 seconds to complete when you have 1 second resolution. You don't actually expect DDR4-3200 compared to DDR4-2400 to give you a 3.3% boost on overall system performance when your previous benchmark showed that the gain in pure memory bandwidth is around 10-15% and the latency boost is around 3%.

Finance is only available to permanent UK residents aged >18, subject to status, terms and conditions apply. What is the difference between these two kits: CMK16GX4M2Z3200C16 vs. CMK16GX4M2B3200C16. I will be using it with the r7 1700 with the C6H. What kit is the best to get the highest speed on? I plan on getting 2 sets of them. Are there any other kits you recommend that can fit while using the NH-D15? Generally I've had good results when enabling GearDown and disabling PowerDown with both my LPX and RGB kits and Zen+ and Zen2 CPU's. Keeping DRAM voltage near 1.35v seemed to be a sweet spot as using higher voltages didn't seem to have any improving effects for my RGB kit and keeping SOC between 1.0v and 1.1v. Overall memory support on my MSI B350M Mortar Arctic has gotten a lot better as well. With B-Dies it can even boot DDR4-3600 into Windows without manual adjustments just on A-XMP. You do still have to make some manual adjustments for full stablity, but that is still a big improvment compared to the early AM4 days. I don't know. I haven't been able to confirm what that version really "is" from anywhere. I suspect it's just lower grade b-die.

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I don't know if it matters about BIOS version or motherboard manufacturer but I was planning on considering a Ryzen build. I am waiting to see what happens with the new AMD (Ryzen 2?) hardware to be released - I think it's this month or next month. The small form factor makes it ideal for smaller cases or any system where internal space is at a premium. If you want to benchmark RAM, it seems like you understand that you need benchmarks that are RAM constrained and compression is part of it, though that's largely CPU bound not RAM bound. In terms of WinRAR specifically, this benchmark offers nothing because your resolution is so poor you can only separate dual cores from quad cores from hex cores, you can't distinguish hex cores with DDR4-2400 from hex cores with DDR4-3200. On top of that, WinRAR is more dependent on the disk so using an M.2 PCIe 3.0 x4 drive should be distinguishable from a SATA-III SSD, is distinguishable from a HDD. You could make the WinRAR benchmark more meaningful by using a bigger data set -- if 1.3GB takes 30 seconds then 15GB should take about 346 seconds and now you can resolve to within 1/346 = 0.29%. Well below what anyone really cares about. If you're building a Ryzen machine, it might be a better idea to get CMK16GX4M2Z3200C16. I'd recommend just getting a 2x8 kit and running it in Dual Channel mode.