9800X3D RAM buying guide by Buildzoid

robj20 said:
And is there an easy way to find out if memory is single or dual?
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You'd need to check but some have a key stating 2R (2 rank) versus 1R (1 rank).

AFAIK, 24gig and below DIMMS are single rank. I'd still strongly consider single rank kits as they are often cheaper and still plenty fast. 6000Cl30 24gig Hyix M-Die DIMMS are really really good.

Try not to get too hung up on RAM, buying a really expensive kit won't result in a huge performance uplift for the money. Just get a kit that's fast enough and try overclock it.
 
robj20 said:
I was just looking at the cheapest Corsair 2x24GB 6000 C30.
www.overclockers.co.uk

Corsair Vengeance EXPO/XMP 48GB (2X24GB) DDR5 PC5-48000C30 6000MHz Dual Channel Kit

Order Corsair Vengeance EXPO/XMP 48GB (2X24GB) DDR5 PC5-48000C30 6000MHz Dual Channel Kit now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk
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Yeah, that’s good. Not too expensive but you might still be pretty happy with a 32gig kit at £100.

Up to you in the end and if you want the extra capacity then great, it’ll be a good purchase.
 
I got 4X16GB and can't get it to work at 6000 but I'm sure it will work as things mature over time

I have seen others get it work on on older X3D chips
 
I think any speed may be a problem although I've seen some videos where people have got it to work with manual tweaking but didn't work for me
 
how much slower would 4x16 vs 2x16 be? Are there any stats or graphs to see the differences? If its a small difference I may just go for the 4x16 but it comes down to the price as well
 
Capitano said:
how much slower would 4x16 vs 2x16 be? Are there any stats or graphs to see the differences? If its a small difference I may just go for the 4x16 but it comes down to the price as well
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It's usually a very big drop off in speed - the motherboard website and manual will say.

It'll drop to something like DDR5-3600 which is way too slow to make up for the increase in capacity and bandwidth.

Seriously, just get 2 by 32gigs if you need the capacity and if you don't need the capacity, just get 2 by 16.
 
robj20 said:
So motherboard makers give 4 slots but you can't use them?
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You can use them but not at full speed.

They make them with 4 slots because that's what people are used to and even if 2 slots would be better for everyone, people would want 4 slots anyway.

By the time you've decided to upgrade from 2 to 4 DIMMS, it's likely that you'll install 4 DIMMS, get <insert a word here that sounds like missed and starts with a P> off at the reduced speed and just end up finding a forum like this one and replacing your RAM with a higher capacity 2 DIMM kit.

Basically, it's marketing. They'll sell you a motherboard now and take your money over not being able to sell you a motherboard because you want 4 DIMM slots. It's also why they advertise incredibly high RAM speed compatibility (8000 MT/s+), even if there's zero chance of you ever being able to run it at that speed.
 
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pewpew said:
Looks like 6000CL30 2x16 is the sweet spot thankyou. Can anybody please explain why 4 sticks is slow? I'm coming from DDR3 intel and DDR5 amd seems to have way more issues such as stability if you select the wrong speeds. If 4 sticks are slow why do most if not all motherboards still have 4 ram slots? :confused:
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I've always had the mindset around 4 sticks being more devices for the IMC to talk to. It's got more to manage, more "front doors" to service so it's likely to be slower at it or less stable at more extreme tunings.
 
robj20 said:
So motherboard makers give 4 slots but you can't use them?
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You can use them but it depends on your motherboard and CPU as well,

Although 2 sticks is the way to go if you want issues or mess around getting it to work
 
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