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X16 RAM chips have half the bank groups of X8 or X4, reducing their bandwidth.
This is on top of dual rank being faster than single rank, 2 sticks (dual channel) being better 1 (single channel), and also some laptops using LPDDR4 (32 bit bus instead of 64bit) for built in soldered memory. It’s mostly issues plaguing laptops and pre-builts.
Honestly, I just ignore all that and buy the cheapest pair of sticks with the best combination of latency and clock speed. It’s kind of impractical to find out what chips a RAM kit uses since the chips are a commodity so memory companies change them out depending on the current market price. They might even have 2 different suppliers for the same SKU.
Non-click bait explanation:
X16 RAM chips have half the bank groups of X8 or X4, reducing their bandwidth.
This is on top of dual rank being faster than single rank, 2 sticks (dual channel) being better 1 (single channel), and also some laptops using LPDDR4 (32 bit bus instead of 64bit) for built in soldered memory. It’s mostly issues plaguing laptops and pre-builts.
Honestly, I just ignore all that and buy the cheapest pair of sticks with the best combination of latency and clock speed. It’s kind of impractical to find out what chips a RAM kit uses since the chips are a commodity so memory companies change them out depending on the current market price. They might even have 2 different suppliers for the same SKU.
So basically i only have to worry abt x16 if it’s on laptops?
The SODIMMs that laptop use are the ones where an 8GB stick can come in 4 chip configurations.
Regular full size DIMMs have 8 chips minimum so 8GB sticks for PCs shouldn’t have that issue.
So essentially the fewer chips on the stick, the worse if it’s on a laptop?
Fewer chips is worse in general since you want the memory to not only be x8 but also dual rank (two chips per controller).
AIght