AMD 9950x

[marchik]

cheers marchik, good insight! Should (in theory) any 6000mhz cl 30 48gb modules work in a 4x configuration? If having to lower ram speeds as you did, does that have a real life performance slow down in production work or is it just for gamers? (I don't care about the gaming performance).

Reason I ask is that the modules I saw by other reddit user who managed to run 4x48gb at 6000mhz, is currently sold out.

I think that with timing selection and OC skills, you can run a lot of RAM sticks at 6000 MHz, but among the "plug & play" solutions I only know that recently Biwin announced 192GB DDR5-6000 and DDR5-6400 memory kits, but they are not yet on sale (and I'm not sure that any motherboard can handle them). Personally, I use 4*48 GB VENGEANCE 6000 CL30 AMD EXPO CMK96GX5M2B6000Z30 (2 different kits of 2 sticks) and it works quite well, I think with experience you can make them work at 6000, it will just take days or weeks of fine tuning.

Memory speed does not dramatically affect performance in our tasks, within 3% I would say. This is purely a race for numbers and ego.

For most users, a 4*48 set generally works at 3600 or 4400, so there is no reason to complain. But now almost all boards with 8+ PCB layers can withstand 5200 without problems, and this is already enough.

and by the way, I noticed that the latest BIOS updates for my motherboard claim support for 256 GB kits (4x64GB), and I think I've already seen them on sale (I can't confirm for sure right now, I need to study this issue in more detail), so soon we'll be chasing completely different ddr volumes and solving other problems :D

ps can you please provide a link to the reddit thread you were talking about?

[Jens]

ps can you please provide a link to the reddit thread you were talking about?

It's this one: https://www.reddit.com/r/overclocking/comments/1i1cmwi/9950x_with_192gb_4x48gb_at_expo_6000cl30_stable/

64gb pr stick on sounds crazy for am5, but maybe worth waiting a couple of months to see what happens? But then again, we can always juuust wait a bit longer for something new and better. My old xeon at home (which this build will replace) scores only 5mil rays in the corona benchmark, and running on 64gb 3200mhz ram :D So no matter what, I will feel the upgrade. Last night I was tempted to just go with a 9900x and 2x48gb and save a lot of money and probably headache. The 9900x is almost half price of the 9950x3d and I would still get over 2x performance compared to my old system. With ai upscaling, I don't see a huge need to be able to render out more than 3-4k native and for that I think the 9900x might be enough and use the saved money to save up for a better gpu. End of day it's only for the occasional freelance job, but I can feel the old pc at home is troubled + win10 updates will end this year and it so old its not allowed to upgrade. Curious if the 9000 series will have smoother IR and material editor performance than the 3990x threadrippers we use at work.

[marchik]

ps can you please provide a link to the reddit thread you were talking about?

It's this one: https://www.reddit.com/r/overclocking/comments/1i1cmwi/9950x_with_192gb_4x48gb_at_expo_6000cl30_stable/

64gb pr stick on sounds crazy for am5, but maybe worth waiting a couple of months to see what happens? But then again, we can always juuust wait a bit longer for something new and better. My old xeon at home (which this build will replace) scores only 5mil rays in the corona benchmark, and running on 64gb 3200mhz ram :D So no matter what, I will feel the upgrade. Last night I was tempted to just go with a 9900x and 2x48gb and save a lot of money and probably headache. The 9900x is almost half price of the 9950x3d and I would still get over 2x performance compared to my old system. With ai upscaling, I don't see a huge need to be able to render out more than 3-4k native and for that I think the 9900x might be enough and use the saved money to save up for a better gpu. End of day it's only for the occasional freelance job, but I can feel the old pc at home is troubled + win10 updates will end this year and it so old its not allowed to upgrade. Curious if the 9000 series will have smoother IR and material editor performance than the 3990x threadrippers we use at work.

I just looked and saw that I have exactly this memory, as described in this post on reddit. I'll try to overclock it :D In any case, I advise you to take at least 9950x, even without x3d and high overclocking, this is a processor with exceptional performance for its power consumption.
I hope that soon all these lags when working with it in Corona will be fixed.

By the way, I saw that in the neighboring topic you were choosing a case and a cooling system for a quiet build. I'm using the FD Meshify XL 2 with dark tempered glass (I'm also a fan of the "Big Black Box That Works"). There are no fancy RGB lights, it's very well ventilated, and there's enough room for 2*420 radiators and any GPU.

I assume you're leaning toward air cooling, but I can recommend you my setup. I'm using the Arctic Liquid Freezer 420 III without RGB lights, and it cost me under $100 on Amazon. I also bought 2 sets of 5 high-speed 140 mm Arctic P14 Max fans for $45 per set. And 2 Arctic fan controllers for $9 each to control them. So, 6 fans are on the AIO radiator in a push-pull configuration, 3 fans are in the front of the case for intake, and another 1 is in the back for exhaust.

So for ~$200 I got a cooling system that dissipates 260 watts of heat in virtually silent mode. It would seem that 10 fans should make a lot of noise and yes, at 3000 RPM it sounds like a jet engine. But the trick is that each fan up to 1000 RPM is virtually silent and even at these speeds it transfers quite a large volume of air (especially considering the number of fans), and the area of ​​the large 420 * 38 mm radiator is enough to dissipate a lot of heat without actually turning on the fans. Therefore, under everyday load without rendering (web surfing, single-core applications, etc.) the fans are almost always off or are within 600 RPM) And when rendering I raise the speed to 1000-1400 RPM and they remain very quiet.
Considering that I also have PBO activated and the limits are disabled, I believe that in stock mode within 200-220W it will work almost silently.

[Jens]

fantastic feedback Marchik, it's exactly this experience I wanted to hear from people. Thanks again for taking the time helping out on this build. Much appreciated :)