Which of this better for 3700x ?

[keavlar]

Hey, 
I have this Ram available for me to choose from, 
Which one is better to have for AMD 3700x + ASUS ROG STRIX B550-A 
 

Also , will I benefit in performance with all 4 channel's occupied? 

 

1. Corsair DDR 4 16G (8Gx2)   3200 CL16 Vengeance RGB PRO CMW16GX4M2C3200C16W

2. Corsair DDR 4 16G (8Gx2)   3600 CL18 Vengeance RGB PRO SL CMH16GX4M2D3600C18W

3. Corsair DDR 4 32G (16Gx2) 3200 CL16 Vengeance RGB PRO SL CMH32GX4M2E3200C16W

4. Corsair DDR 4 32G (16Gx2) 3600 CL18 Vengeance RGB PRO SL CMH32GX4M2D3600C18W

5. Corsair DDR 4 16G (8Gx2)   3200 Dominator Platinum RGB White CMT16GX4M2Z3200C16W

 

 

 

 

[tkitch]

They're all about the same.

 

Performance wise:  3200 CL16 is about equal to 3600 CL18.  The  Higher Speed offsets the lower CL.

 

So get whatever you want.

 

2 vs 4 sticks:  2 is better than 4 for stability.  

[keavlar]

1 minute ago, tkitch said:

They're all about the same.

 

Performance wise:  3200 CL16 is about equal to 3600 CL18.  The  Higher Speed offsets the lower CL.

 

So get whatever you want.

 

2 vs 4 sticks:  2 is better than 4 for stability.  

How so ? 
I always heard differently, can you please remind why ?

 

[tkitch]

Just now, keavlar said:

How so ? 
I always heard differently, can you please remind why ?

 

how so what? 

[keavlar]

Just now, tkitch said:

how so what? 

Sorry, line got deleted :

 

2 vs 4 sticks:  2 is better than 4 for stability.  

 

[tkitch]

The more sticks you have the more chance for one to not be up to par with the others, so any "timing benefits" will be harder to hit with 4 than 2. 

[jaslion]

22 minutes ago, tkitch said:

The more sticks you have the more chance for one to not be up to par with the others, so any "timing benefits" will be harder to hit with 4 than 2. 

Also the memory controller needs to work harder and that can give some issues with reaching the max speed.

[tkitch]

Also:  Consumer Chips use "Dual Channel Memory" which is 2 sticks.

Running 4 doesn't make it "Quad Channel" it's still Dual Channel.  There is no speed benefit to 4 sticks, like there is going from 1 to 2. 

[jaslion]

Just now, tkitch said:

Also:  Consumer Chips use "Dual Channel Memory" which is 2 sticks.

Running 4 doesn't make it "Quad Channel" it's still Dual Channel.  There is no speed benefit to 4 sticks, like there is going from 1 to 2. 

Also (I guess we have a chain going :P) 4 sticks do often improve performance a little bit when they run at their designated speed simply because there are more physical rows of memory available thus having a bit more bandwidth available.

 

It's not quad channel but it does gain a bit of a benefit. Not something worth chasing after however.

[Mark Kaine]

11 hours ago, keavlar said:

1. Corsair DDR 4 16G (8Gx2)   3200 CL16 Vengeance RGB PRO CMW16GX4M2C3200C16W

2. Corsair DDR 4 16G (8Gx2)   3600 CL18 Vengeance RGB PRO SL CMH16GX4M2D3600C18W

3. Corsair DDR 4 32G (16Gx2) 3200 CL16 Vengeance RGB PRO SL CMH32GX4M2E3200C16W

4. Corsair DDR 4 32G (16Gx2) 3600 CL18 Vengeance RGB PRO SL CMH32GX4M2D3600C18W

5. Corsair DDR 4 16G (8Gx2)   3200 Dominator Platinum RGB White CMT16GX4M2Z3200C16W

Bad experience with corsair,  so i don't endorse this, otherwise literally don't matter speed wiseas as already been said, just get 2x8 minimum,  probably 2x16 would be better. 

 

personally recommend G.Skill as its better binned usually.