4 x 8 GB or 2 x 16 GB - which is better?

VulkanBros · Aug 28, 2017

Hi

In my new RyZEN machinery i want to upgrade the memory - but
is there any differences/limitation between using 4 x 8 GB vs. 2 x 16 GB?

My intention is to use: CORSAIR CMD16GX4M2B3200C16 ver4.31 in either 4 x 8 or 2 x 16

agent_x007 · Aug 28, 2017

AMD's recommendation :

Less DIMMs = better. Less Ranks = higher frequency.
^Regardless of BIOS updates.

VulkanBros · Aug 28, 2017

http://dlcdnet.asus.com/pub/ASUS/mb...9.1820407091.1503900124-1640132104.1503900124

Okay - so better 2 x 16 is the best choice - Thanks

hat · Aug 28, 2017

2 sticks will be better than 4.

bug · Aug 28, 2017

Look at latencies, if they're much more lax on the 16GB sticks, you may be better served by 4x8. Though going for fewer sticks would be my first choice as well.

Vya Domus · Aug 28, 2017

Since Ryzen supports only dual channel , there is no reason to go for 4 sticks. Go for 2x16 this will also allow you to increase the amount of RAM easier should you ever need to.

EarthDog · Aug 28, 2017

Vya Domus said:
Since Ryzen supports only dual channel , there is no reason to go for 4 sticks. Go for 2x16 this will also allow you to increase the amount RAM easier should you ever need to.

Capacity.

Though im wondering if the OP needs 32GB... i cant break 13gb with like 30 chrome tabs and playing games...

Vya Domus · Aug 28, 2017

Who knows , I was just pointing that out.

MIRTAZAPINE · Aug 28, 2017

2x16GB. There is less point of failure. Less stress on the Cpu Imc. Though for it being dense might be hard on the imc. It would more annoying diagnosing faulty memory stick if it is 4 pieces.

I am using 2x16GB. It works rather close to the actual ram speed.

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System Name	Commercial towing vehicle "Nostromo"
Processor	5800X3D
Motherboard	X570 Unify
Cooling	EK-AIO 360
Memory	32 GB Fury 3666 MHz
Video Card(s)	4070 Ti Eagle
Storage	SN850 NVMe 1TB + Renegade NVMe 2TB + 870 EVO 4TB
Display(s)	25" Legion Y25g-30
Case	Lian Li LanCool 216 v2
Audio Device(s)	B & W PX7 S2e
Power Supply	HX1500i
Mouse	Harpe Ace Aim Lab Edition
Keyboard	Scope II 96 Wireless
Software	Windows 11 23H2

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Processor	i7 2600k 4.4GHz :: i5 10400
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Processor	Intel i5-12600k
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Processor	AMD Ryzen R9 7900 - Alphacool Eisblock XPX Aurora Edge
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4 x 8 GB or 2 x 16 GB - which is better?

Enthusiast