WEBVTT

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know buying RAM for your computer isn't so easy there's a lot to take into account how much to get what speed you

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want and whether it's worth paying a few bucks more to make the inside of your computer look like it's been slathered

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in rainbow sherbet

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but one specification people don't talk too much about is how many ranks your

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RAM modules have and i'm not referring to how many steam achievements you've

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unlocked with the same RAM kit if only a memory rank is actually a single group

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of memory blocks you see each rank has a 64-bit bus that connects your RAM to

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your motherboard and one stick of RAM can have one two or even four ranks on

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that one stick generally speaking more ranks are better because your system's

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memory controller can access each rank separately from the others while the CPU

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can access every rank at once due to the modules themselves sharing the 64-bit

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bus it can start an operation on one rank while another rank finishes up on

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another task a process called interleaving that can reduce memory

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response time and slightly improved bandwidth despite not increasing the bus

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width but should you care about this are the performance benefits actually worth

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worrying about such an esoteric topic oh

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it turns out the answer is yes especially if you're running an AMD

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ryzen CPU certain games that are more memory dependent can see noticeable

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performance increases when running more ranks of memory and even some

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productivity applications like file compression programs can also benefit

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and there's more good news you don't necessarily have to go out and buy

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special dual rank modules to take advantage of the speed boost many of you

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probably have four dimm slots on your motherboard that can operate in dual

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channel mode if you fill all four slots with single rank dimms this is roughly

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equivalent to a dual rank setup in two slots if you're only rocking two sticks

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of RAM this is a situation in which you'll want to have those dual rank

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modules but how exactly do you know how many ranks are on your RAM modules ask

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them although a common explanation is that single rank memory has chips on

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only one side while a dual rank module has memory chips on both sides it can be

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hard to tell how many ranks a stick of RAM has just by glancing at it even if

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it doesn't have a heat spreader sometimes modules that appear to have

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memory chips on both sides actually act as one big rank and then you have the

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fact that trying to figure this out in your BIOS or in a system utility doesn't

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always give you an accurate answer either some RAM modules will have a 1r

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or 2r to indicate whether they're single or dual rank respectively and quad rank

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memory is quite unusual on regular desktops so odds are you won't be seeing

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too much of it if that isn't too helpful you might try looking at a spec sheet or

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checking out online resources where users have compiled lists of single and

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dual rank memory kits now it also turns out that because modern memory

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integrated circuits or ics tend to be eight gigabit capacity as opposed to the

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older standard of four newer eight Gigabyte sticks tend to be single rank

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while newer 16 gig sticks tend to be dual rank and if you're confused about

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the math there one rank is made up of eight ics

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this means that even if you won't use all of it 32 gigabytes of memory may be

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the sweet spot for speed today though this will keep changing as ic capacity

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increases but remember that whether you see real benefits really depends on your

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workload and more ranks can paradoxically add more latency depending

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on what you're doing so do your research and see if that trade-off is worth it

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for whatever it is you get up to on your pc i don't know what it is and frankly i

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techwiki well what do you know that was a video thanks for watching guys like

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the video if you liked it dislike the video dislike it check out our other videos we got lots comment below with

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