Question about rams

[dsfadsf]

Good Afternoon,

I am going to do new pc build within few days and was wondering what was benefit of using 1 dual channel and 2 dual channel in my mobo.

I was watching youtubers covering the difference between 1 dual channel (using 2 ram) and using 2 dual channel ( 4 rams) but I don't quite understand the benefit of using 2 dual channels.

I am planning to purchase MSI MAG X870E Tomahawk WIFI AM5 ATX Motherboard which has 4 ram slots but when I do research, people telling me that using only 2 x 32gb of ram is better than using 4 x 32gb ram. my question is what is the point of mobo companies making 4 slots of ram if using 2 will make the most performance?

 

FYI I am going to pair it with Ryzen 9 9900 x 3d with the mobo

thanks in advanced 

[y0ur5h4d0w]

11 minutes ago, dsfadsf said:

Good Afternoon,

I am going to do new pc build within few days and was wondering what was benefit of using 1 dual channel and 2 dual channel in my mobo.

I was watching youtubers covering the difference between 1 dual channel (using 2 ram) and using 2 dual channel ( 4 rams) but I don't quite understand the benefit of using 2 dual channels.

I am planning to purchase MSI MAG X870E Tomahawk WIFI AM5 ATX Motherboard which has 4 ram slots but when I do research, people telling me that using only 2 x 32gb of ram is better than using 4 x 32gb ram. my question is what is the point of mobo companies making 4 slots of ram if using 2 will make the most performance?

 

FYI I am going to pair it with Ryzen 9 9900 x 3d with the mobo

thanks in advanced 

for the latest AM5 in general using 2x RAM sticks is way, seems like that the connection between the CPU and the RAM is more stable at 2x sticks, i personally owns 2x32gb of 6000 cl30 RAM for this exact reason, aestethically i would have gone 4x or 2x + 2x dummies but gzkill tridenZ doesn't have dummies sadly.

 

this being said, it can work out correctly and perfectly fine at 4x slot used, however do you realy need up to over 128gb of ram anyway? i would go for stability, 64gb of very fast ram is a good choice

[dsfadsf]

12 minutes ago, y0ur5h4d0w said:

for the latest AM5 in general using 2x RAM sticks is way, seems like that the connection between the CPU and the RAM is more stable at 2x sticks, i personally owns 2x32gb of 6000 cl30 RAM for this exact reason, aestethically i would have gone 4x or 2x + 2x dummies but gzkill tridenZ doesn't have dummies sadly.

 

this being said, it can work out correctly and perfectly fine at 4x slot used, however do you realy need up to over 128gb of ram anyway? i would go for stability, 64gb of very fast ram is a good choice

That's why I was checking if using all 4 slot was ok because I have purchased trident z5 royal (2 sticks atm) but my mobo fills empty with 2 ram before I had 2 16gb of corsair vengance and 2 light kit which made it look full and rgb look more fluent. but i couldnt find any dummy or light kit for the trident z5 royals

 

[YoungBlade]

The reason why 4 slots is still beneficial is that if you actually need more RAM for something, then even if you have to run it at a slower speed, it's still better than the data needing to swap into the pagefile.

 

So if your workload genuinely benefits from 100GB+ of RAM, then getting two more sticks, even if you can only get them running at DDR5-4000 or something, will still be an improvement over just 64GB at DDR5-6000 or whatever speed you've got.

 

You'll see the recommendation for 2 sticks in basically all enthusiast spaces because, ordinarily, enthusiasts are interested in gaming performance. At the moment, almost no games benefit from more than 32GB of RAM, so going beyond that is dubious if it means compromising on the speed.

 

In gaming, when CPU limited, DDR5-6000 can be 25% faster (or more) compared to DDR5-5200, let alone DDR5-4000 or DDR5-3600. So you're leaving a lot of CPU performance on the table.

 

However, if you genuinely need the extra capacity for something, you can still get a benefit even with slower RAM, especially if your workload isn't particularly bandwidth sensitive.

[Dedayog]

18 minutes ago, dsfadsf said:

That's why I was checking if using all 4 slot was ok because I have purchased trident z5 royal (2 sticks atm) but my mobo fills empty with 2 ram before I had 2 16gb of corsair vengance and 2 light kit which made it look full and rgb look more fluent. but i couldnt find any dummy or light kit for the trident z5 royals

 

There's your answer then, you asked why people use 4 rams.  To look good is one reason.

 

Another is if you buy 2 sticks, and realize you want more later on.  It's easier to buy another 2 sticks vs buy higher capacity 2 sticks and sell yours, for example.

 

That said, AM5 can be finicky as mentioned above.

 

 

[Tetras]

2 hours ago, dsfadsf said:

I was watching youtubers covering the difference between 1 dual channel (using 2 ram) and using 2 dual channel ( 4 rams) but I don't quite understand the benefit of using 2 dual channels.

I don't think that has anything to do with the channels.

 

in a regular board you have two channels, label A and label B. Each of those channels has 2 slots, but they're still only one channel (e.g. you might have 4x 16GB sticks, but the channel capacity is channel A: 32GB and channel B: 32GB).

 

The reason 4 sticks can be faster is because the memory has more ranks, so if you have 4x (single rank) 16GB sticks, you now have twice as many ranks as 2x 16GB sticks. Having more ranks is faster, but with DDR5 that's not so simple, because more sticks rarely run at the same speed and overall you're still likely to lose performance.

 

This performance benefit from ranks is also seen if you run dual rank sticks (e.g. 32GB sticks are usually dual rank, though single rank 32GB does exist).

 

With DDR4, it was talked about a lot (single rank versus dual rank, 2x sticks versus 4x sticks), but running 4 sticks on DDR5 has been such a pain since launch that most users don't bother.

[OddOod]

6 hours ago, dsfadsf said:

the benefit of using 2 dual channels.

Mostly it's just MORE ram. More capacity.

[freeagent]

Rank interleaving.

 

I honestly wish you the best if you are going to run 4 1R sticks. My current setup was no problem to run, but I have 4 sticks of 6000C30 that do not play nice at all.

 

Your best bet would to just buy a pair of 2R sticks, so you get the benefits without the headache.