RAM Speed and Timings As Fast As Possible
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- Опубликовано: 3 окт 2024
- How do you interpret the speed and timing specs on RAM kits, and how much does it matter for your PC?
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To be honest, I was expecting Linus to go over what each of those four timing values actually stand for...
+Robert Faber I think he couldn't find a way to fit the whole CAS into a FAP video.
+Robert Faber Yeah... kinda disappointing, it was a 6 minutes long video about "you probably dont need to care about your memory speed" -_-
+Tengu Siv www.akkadia.org/drepper/cpumemory.pdf
+Tengu Siv what i saw online the fastest speeds came from 2133-2666 mhz on ddr4.. so most likely something like the Kingston hyperX Predator @2400 mhz CL 12 will be around the sweetspot of clockspeed and latency.. at least afaik..
+Robert Faber I would like that he at least metioned of probable compatibility issues (capacity, same parameters, and can U mix manufacturer) and rows in memory (ie. Single Sided/Double Sided memory).
No "Command Rate" timing as well :(
4:00 you definately need a wrench when fixing a PC
But, Jeremy Clarkson has proved that a hammer can fix anything.
and a rusty one too...
LinusTechTips: 80% technology, 20% bad puns... and we love it XD
+Bladerunner12120 True :-D
came for the thumbnail, stayed for the puns
and 100% sponsors.
no we dont
I wish you guys would explain the timings of the ram in more detail
That's what I was hoping for. This video is way too high-level to be interesting :/
+Tom Is a Door if the timing is 9 for example
the ram will take 9 cycles to get the data you need
so if your ram is 1800mhz as example
it'll take 9/1800000000 = 5 nanosecond
which is very neglictible for most pc users
hope i explained it well ..
Vaaas Yes, but there's four numbers (eg. "9-9-9-27"). What does each number mean?
+Tom Is a Door
I just took a quick glance at the wiki page about "Memory Latency", which led me to CAS Latency, which led me to Random-Access Memory Hierarchy, and tbh, there's too much information in there to be put on a single TechQuickie video if you begin to scratch the surface and add technical terms like CAS/CL, Trcd, Tras... that will need to be defined by other technical terms that will need to be defined by other technical terms... The pit is very deep. I believe they went deep enough to not drown themselves.
For more information : RAM timing is expressed in a series of numbers (like 8-8-8-24) which each represents a number of clock cycles to complete a specific task associated to RAM manipulation. The absolute latency in nanoseconds is calculated both with these timings, and the actual RAM frequency, which is half of what is usually announced, because marketing likes big numbers and Double Data Rate doubles the speed ! So take a 1600MHz 8-8-8-24 stick (like the ones I have in my rig, which are Crucial Ballistix Tactical 8GB Low-profile for my SFF rig), understand it's a DDR stick so it's actually a 800MHz stick, then calculate that clock ticks occur once every 1.25ns, so the absolute latency of my RAM for these timings is 8*1.25 = 10, 10, 10 and 24*1.25 = 30, in nanoseconds.
So yeah, a DDR3-1600 8-8-8-24 is quite good, but a DDR3-2333 with 9-9-9-27 timings will be better because of the far higher clock speed. It's a result of two variables. Careful though, not every motherboard will support faster RAM !
+Daniel Lo Nigro (Daniel15)
1st number >> CL: CAS Latency. The time it takes between a command having been sent to the memory and when it begins to reply to it. It is the time it takes between the processor asking for some data from the memory and then returning it.
2nd number >> tRCD: RAS to CAS Delay. The time it takes between the activation of the line (RAS) and the column (CAS) where the data are stored in the matrix.
3rd number >> tRP: RAS Precharge. The time it takes between disabling the access to a line of data and the beginning of the access to another line of data.
tRAS: Active to Precharge Delay. How long the memory has to wait until the next access to the memory can be initiated.
4th number >> CMD: Command Rate. The time it takes between the memory chip having been activated and when the first command may be sent to the memory. Sometimes this value is not announced. It usually is T1 (1 clock cycle) or T2 (2 clock cycles).
the most important one is the 1st one (latency) ..
"copied from website"
You can actually double your RAM with a quick catalytic converter install.
+The Hoax Hotel need that forced induction to feed that ram in order to take use of the that extra ram.
Hey Linus, stop deleting comments... the link with "downloadmoreram" was just a joke.. it's still April Fools day jezuz ;-)
I doubt he's deleting them, more than likely it auto sent to spam.
+Toon M Why does he have to be so mean :( I didn't know I wasn't allowed to make jokes.
Henry Wallace yea, but everyone knows you need to reinforce that with 4 barrel injectors
I was hoping to hear an explanation of what the timings and frequency actually mean. You basically just spent six minutes to say "it doesn't really matter lol"
“Useful for a lots of things”
Does ram speed effect card performance?
hypzrx does DDR3 effects performance on a gtx 1650 S ? , compared to DDR4
Please make. Power efficiency as fast as possible. Explaining the silver, platinum, gold etcz
that would be a good video
+SoloNita they made a video on power supplies and in that vid they said what it meant
"so simple to use, that like my family could do it" - Linus Sebastian 2016
these transitions to the ads are unreal with the creativity
what? an actual video, on april fools day? MADNESS
+Mrab Ezreb Well, considering it came out on Vessel a week ago...
Skylake actually benefits a lot from higher speed DDR4 RAM, especially on CPU intensive games and software. You can get a jump of 20+ more frames from the default 2133MHz to 3200MHz speed kits.
Speaking of April fools, tunnelbear!
Is there a better Vpn then tunnel bear ? Would appreciate so incite on vpns
+J Ramos
Try betternet Vpn its on AppStore and playstore and Windows. Ps it's free
You didn't explain what the latency timing string of numbers meant, nor did you explain anything about how certain motherboards are not compatible with certain speeds.
old time watcher, placed a smirk on my face seeing your commmercial start before you video. YEs.
His hands look like he's been eating Doritos.
Seems like they used to do lifetime not too long ago but on reddit they have repeatedly stated that they are not going to offer lifetime anymore, so this might be the next best thing.
For anyone interested in using this for Netflix. I can see 4 servers from my list
Windflix US
Windflix UK
Windflix CA
Windflix JP
Side note: a lot of the stuff on Netflix JP does not have english subtitles.
Steve Thea who are you talking to bro😂😂
@@hassan_dgf The person who he was talking to either deleted their comment or account.
3:17
Yes I'm sure that spending money on faster ram is better way to improve graphics performance when using an APU, instead of... oh, I dunno, buying a graphics card.
+Doomguy 8gb cl9 1866mhz £30 would give like 5-10fps over some shit ram you would be upgrading from.
No gpu worth £30 can do the same.
Ping as fast as possible
exactly!!
+Jake Woodworth Time for data to go server and back to your pc. There.
+Mr. 42 savage
how do you not know what ping is?
+WonderWaffle how do you not know that you don't have a good life
Digital Foundry (partially) disproved this. In CPU bound scenarios in gaming, faster RAM can definitely increase your minimums. Not an excuse to buy the most expensive stuff out there, but springing for a tier or 2 higher could be worth it depending on price.
+DrearierSpider1 the problem with that is you need oc board to use faster than standard ram. And costs are just rising 2x as much for board a little more for ram and if you have z board already then it would be shame to not buy k processor then additional cooler.... That's how i come to conclusion, screw that, and bought i7 6700 (none k) h110 board and 16gb of standard 2133mhz 14cl memory for my gaming pc.
Chrome in 2021: I will use as much memory as I want
I wanted to know this ram timing for a long time.
Thanks Linus
"Tunnel to another country" - Linus Sebastian
#smoothracist
+Ion Garcia "We have to build a wall" ~Donald Trump
Low key telling Mexicans how to get in.
We definitely have to build a wall...and do many other things. They already use tunnels so improved seismic sensors and drones are being proposed.
@@sciguy9119 and then after the they stop people from using tunnels what do you do after that because that deffinatly wont stop people from finding a way in. no matter if a wall is built or seismic sensors are in place. Its not going to stop anything.It's a waste of money
Casper What foolish logic. So perhaps we should unlock prison cells and tear down prison walls since prisoners often breakout and escape. Or perhaps we should remove locks from doors since homes are broken into every 24 seconds. This liberal mindset is a danger to America. Since people break the law and disobey, your logic is to eliminate the barriers and laws rather than punish the criminals. Do you not see what foolish and irresponsible reasoning that is? Of course not. Liberals have no ability to reason logically.
@@sciguy9119 so then does prison keep people from breaking the law? no. people will still break the law. so what im saying is people will still do what they need to do wether yiou try to stop them they still will find a way its not the same as prison bc its complicated but to me i feel theres a better way to approach things
Today I watched a 3 min German ad just because it was funny 2:50 funny and informative sketch(4k gaming) and 10 sec actual advertisement. Every ad should be like that o:
I see pixelisation on the edges of your body and hair here. Tweak chromakey/shoot some scenes with zooming.
+SneakyJoe's Salad RUS Also, tunnelbear doesn't allow torrenting.
that tunnelbear seque was amazing
Love the way linus explains RAM!
Love the way linus explains RAM!
THE TRANSITIONS ARE BACK!
It's amazing how I got a linus ad and watch linus again after I skip ad
Great video as usual.... why are your palms yellow tinted?
Now I remember why I subscribed to this channel. Thank you Linus
That sponsor was so seamless...
i use sponsorblock
Was Linus playing with orange paint before he recorded this video? His hands. Are... orange.
Bravo on the Herman Cane joke. Bravo.
You're the best, LInus! You're my Go-To Techie
What about the green background?
i respect linus for not making a 1st april fools video
He did
Internet Genius
where , at least it's not on the main channel
+Tchitchouan Inouane ruclips.net/video/CMTUZtF27kA/видео.html
Oh man.. I was starting to think I was the only person who remembered 9-9-9. Good show.
With the new Ryzen APUs, which uses your high speed system ram without a GPU, 3200hz ram adds a 20% improvement to fps in games compared to 2400hz ram.
Number of clock cycles per second? i think there is a slip in that script. The number of cycles per second is the operating frequency of the ram module. The timings tell you how many of those cycles will be spent doing certain operations on memory.
The guy plugging the ram card in with the dollar sign eyes scared the hell out of me at 4:00 in the morning
« Their bears have claws not to mention fur »
Can you make a fast as possible explaining what Pascal and Polaris is and why I should be excited for them please?
+Reo! Vendredi but I don't even know what they are, Linus just talks about them a lot
wanted to mention that some games do benefit from faster ram, where other components are not the bottleneck.
there was actually an interesting article put out regarding how memory speed actually had a direct effect on the minimum fps for Fallout 4, again, where the ram itself was the only bottleneck (they were using haswell-e and a titan X for benching)
Another way faster memory can benefit SOME games, like Skyrim or Fallout, is by using 3rd party software (such as ENBoost) that forces a portion of the system memory to be used as a pre-cache/overflow for the VRAM
According to a few sources such as digital foundry, if you are CPU limited in games then ran speed can make a substantial difference to frame rate. For instance a core i3 cpu or even an i5 in fallout 4 with a fast gpu.
For those who haven't fell for april fools and still don't know why they're still using white background, i'm impressed that you got this far
I've been waiting years for this.
+Dayvidlol Instead of just researching the information yourself you wait for a linus video? What a great accelerated pace of learning you have.
+wtfPlatypus only if what you say is correct. ;)
"Ram speeds don't matter" amd Ryzen shows up "hold my beer"
Those bears having fur makes all the difference to me.
3:59 If only i had an open end wrench for my pc Linus has the best tool kits around.
We need teachers as exciting as this guy.
His skin looks like he just dipped his whole body in Cheetos
hey linus your contents are just awesome...so was this...and can you explain what exactly is 'cpu- registers'
4:12 I do, you’re not the only one cursed with knowledge.
Linus likes "air quotes" for everything.
I have a 2018 13" MBP 8/256 right now (first laptop in 10 years). General use for me would be Safari with 10 tabs, Spotify, gmail, Word document, iMessage, FaceTime. I may get in to editing photos down the line but have never used Photoshop or Lightroom or anything like that and don't plan to really learn them. I also don't make videos. I am a general artist (photography, drawing, guitar/singing/songwriting, woodworking) so I may dabble with some artsy apps later, but none too serious. However, the one I definitely plan on using most is Garage Band or possibly even Logic Pro X. I also plan to own my computer for 5 years. There's also always a possibility I may delve in to RAM hungry apps in the future and I'm not sure what apps may grown in RAM use down the line after updates etc... I'm struggling with whether to upgrade to 16 RAM. Do you think it's worth it in my situation?
0:15 don't you mean trivia?
Cool video!
Now please a LTT video with way more in depth comparison on the latest DDR4 sticks please, record frame times and report on min, max and average please!
Faster RAM (DDR4 with modern titles) can actually make a surprising difference without an APU. Although still nothing crazy, it's definitely a noticeable impact (even with i7/980 ti like rigs)
Thank you Linus !!! You just helped me with my homework❤
OK that was an FN reach for the DAMN tunnel bear advertising
I know you guys have a video of what mobo chipsets are but maybe make a vid of the history of motherboard chipsets?
THANKS! finaly someone more trustfull then just some random guy ( like i am) said it.
There is still echo in the video, use sound proofing material in the area you're in guys.
Did Linus film this after respraying that GPU orange?! Either that or he has been applying fake tan, because his palms are proper discoloured!
+Rhys Sadler-Price turn down saturation
or even better with Obama while he was taking his golden tan
You guys should have Brandon do a Techquickie on Full frame sensors vs Croped Sensors
0:55 that's some fast ass memory you got there...
I can't believe that the video editors didn't remove the audio hum in the background.
+ try looking for the lowest latency over highest frequency. For example, a stick of ram with a clockspeed of 2666Mhz and a latency of 13Cas will give you pretty much the same performance as ram clocked at 3333MHZ with a latency of 16Cas but for a lot less money.
nein - nein - nein - 24 ... Great timings, linus !
Linus looks like he hasn't slept for days
you should do one on what dose it mean to make an app administrator.
What you said in this video can probably be summarized in 2-3 sentences
And you even asked the question what do timings like 9-9-9-18 even mean, but then only answered the most generic thing which everyone knows that it means how many clock cycles it'll take before it executes a command. That doesnt tell me why its 4 numbers instead of one
Faster (faster speed and timings) make difference in gaming. Some games like mostly speed but for some it's about it's about both.
GTA V and Arma 3 are good examples.
I have quad channel DDR4-3000 15-15-15-35 2T 1.35V GSkill Ripjaw DIMMs. It definitely makes a noticeable difference for overclocking benchmark scores. They don't even make DDR4-3000 this tight anymore; got these nearly 2 years ago the day i7-5820K launched.
the topic of how much ram is usually simple. because you can always download more ram if you want
I was really hoping to get an explanation that would help me pass the COMP TIA
RUclips.com : WTF this guy is in 20 countries at the same time?! Damn son!
please do a video on live streaming videogame with screen switching from computer screen to different cameras connected to the computer on the fly all the while also being able to control mic volume from a mixer. mainly switching between different cameras and the screen where game is being played
Could have explained what those timing parameters stand for each
so he didn't say anything about what mhz - latency ratio we should follow? I mean, should I buy RAM with crazy high 4133 Mhz, but high 19 CL latency? Or the optimal thing is to go lower Mhz and lower latency?
+comedyman112 High Mhz, lower latency.
The Ender Club the higher mhz you go, the higher latency you have....so where to stop in matter of mhz?
+comedyman112 My advice would honestly be to look at the NCIX website and see what they are putting in their custom-built gaming PCs. It's a good general guide, and they do actually have a clue about what they're doing. They're sticking 2400- to 2666-MHz sticks in those things, give-or-take.
The actual math behind figuring-out what timings and clock speeds combined work-out to better memory performance can get complicated fast, and when you start having to consider the CPU and the motherboard, the hardware configuration might not be able to support the timings or clock speeds of the RAM, there might be other limitations like the RAM not actually performing to the spec quite as it should...I'll just say it's way, way, way more of a headache than it's worth. Linus' advice is good in this. Get as much as you need (8GB is enough for gaming now, though if you're going to do something like run Skyrim or Fallout 4 with 200-300 mods, I'd say go for 16GB) at a reasonable price and speed that's on-par with what's common at the time.
I know all about those inexplicable errors. Blue screens and reboots loops and I had no clue what was causing it. Narrowed it down to the RAM but now everything works fine when I tried testing each stick.
+Fourpony Invictus Are they all part of one kit? some times ram doesn't play nice with other ram.
They are the same brand, same product but 8 months apart in age. The PCBs are different colors but they ran fine for about a year. And now they run fine again. I have no clue what caused the issue.
So what's the best brand for buying RAM?
- Kingston?
- G.skill?
- Transcend?
- Corsair?
- Micron?
- Samsung?
- Crucial?
DigitalFoundry has some benchmarks that show that faster RAM can have a significant impact on performance on some games though.
which one is faster?
1. 3000 (pc4 24000) cl 16-18-18 38
2. 2400 (pc4-19200) cl 15-15-15 35
I just choose a color and capacity, as you said, it only matters for an APU laptop, otherwise I couldn't care less about timings or MHz, going from DDR1-2-3-4 its just no difference at all using a desktop pc with dedicated gpu
Please do one about dual rank vs single rank (NOT CHANNELS) RAM it's driving me crazy
Someones been rubbing turmeric all over their chicken ;)
in some memory speed test from digital foundry there was a noticeable difference on games using skylake processors with ddr4, as lons as there was a processor bottleneck
4:08 I have that exact same ram. Looks literally like mine. 4 x 2GB for me lol. Built in 2008 8)
"What about having quick memory for your computer?" *cue picture of SIMMS from 1991*
That putputput nosie lol!
I'm early so you will see this comment
Nah
+R0cket yah
im blind
+Fartonaut
That username tho
+Handsome Jack Jesus, who shot your diamond pony?
my biggest question is do you always stick with what the motherboard is rated for? if you go with a faster RAM than what the board is rated for will you see any improvements or are you just wasting money?
I was struggling to get my 3600mhz ram to run at anything faster than 2133. I was having horrible brush lag in photoshop (Photoshop is a ram hog.) with huge document sizes. People kept telling me i was wasting my time fast ram doesn't matter. I finally got it running at 3200 mhz and i can say there is significantly less brush lag.
I think in gaming the gains of fast memory aren't much to bother with but for other things there is DEFINITELY a benefit.
So does ram speed matter for video editing? I have 64gb of ram already. Would getting faster speeds benefit at all?
64 Gb ram, who are you Bill Gates
+PhaseSkater What do you do with that?! shoot lasers to the moon?
+PhaseSkater Yeah it does I would buy some right away if your speed is slow.
its not enough.. better upgrade to 128GB ddr4
kasio That is too much just keep it at 64GB high frequency DDR4 it has a much higher bandwidth
im happy you talk about onboard graphic (APU) using RAM as Vram but you forgot to mension that iGPU from intel also use 1.8GB ram as Vram.
you also forgot to mension that higher band speed give mostly slower timings such as 1600mhz cl5 will be at lowest 2133mhz cl8 (exept corsair who's stuck at cl9 to cl10)
and alot of memory can't handle overclock as the sold specs is already bordering the limit (those cl9 and 10 of corsair seems to overclock better ,well it should anyway with those timings)
my ddr3 2133mhz 16GB at CL8 max overclock that it can reach is 2150Mhz but limits the 4770k overclock to 4.6Ghz while setting it at 2133Mhz for ram the 4770k can get 4.7Ghz
just an example to show that its more complicated as most people usely think.
nowadays faster memories can give you like 10fps boost, which is pretty great
One thing RUclips has taught me is that you can learn without it costing you a dime
THANKS RUclips!!!
So would it be better to have 32GB of ddr4 at 2133 or 16GB of ddr4 at like 3400, 3466, 3600, 3733, 4000 or 4133?
i want to know this as well
i got 32gb 3600mhz while i could get 64gb 2400mhz... i dont see difference when i run at 2133 vs 3600 so spend money on capacity.
16 gb is more than enough for almost anything and it will be long time like that and its going to be better for your CPU to work with DDR 4 for the lower voltage
This is a theoretical question to better understand RAM
Depends on your needs.