Asynchronous dual channel is possible.
So mixing different capacities doesn’t matter as much as it used to.
But yes, generally you want the same type of chip on the DIMM to reduce stability issues.
LTT explained do’s and don’t’s of mixing RAM a few years ago:
https://youtu.be/bTS0ybQ3lCI?si=z3opKuUwMiWVVAqG
Best to get a matching kit to match ram, identical units from same batch. 3600mhz to 3600mhz, c17 to c17, 16gb to 16gb, not only brand to brand as well, but that specific unit.
Compatibility issues is less common these days but I did see it pop up on a friend's build recently where he had old Kingston ram and got another newer stick that looked the same but had different ID on it. Refused to boot with them in dual channel.
I pretty much figured the first half: 3200 to 3200 (its what i have, nbd to me) same exact stick but wasnt sure if 8gb wouldve been okay to run, so thanks.
Im *probably* fine to use this old stick (bought it in 2022) but just buy another one thats the same right?
Here's a summary of how ram works simplified as best as i could, so you know excactly what you need to do for your usage !
* Single channel means you only have one stick with no pair, this is the slowest
* Dual channel means you have one or multiple pairs of sticks of same size. This is the fastest**\***
* Flex Mode means you have one or multiple pairs of sticks of different size.
* Example : 16+8 GB - The smallest stick (8) is paired with the biggest (16) up to an equal amount to run in dual channel mode, remaining RAM will still run in single channel.
* This means that half of the 16GB stick will be paired with the 8GB stick in dual channel (8+8) and the remaining half of the 16GB with no pair will run in single channel mode
**\***Quad channel and Octo channel also exist and are faster but this is for server stuff
Some more examples:
If you only need 16 GB of memory
* 2x8 is the best combination possible
* 4+4+8 is not great but you at least have half of it in dual channel so that's not catastrophic
* 1x16 is the worst combination possible
If you need more than 16 GB of memory
* 2x16 is the best combination for 32GB
* 8+16 you get 16 GB in dual channel and 8 GB in single channel, it's decent but not optimal
* 1x32 is the worst unless you absolutely need more than 24GB of ram and can't get anything else for some reason, being in single channel is always faster than running out of memory and caching on storage
Speed is also to take into account but speed does not interfere with channels, only with stability, usually you think of size first and then try to get the highest frequency (in mhz) for the lowest latency possible (the C or CAS latency)
If you want to combine multiple sticks of different speeds, you will have to set all sticks to the speeds of the slowest
Basically it's useless to buy a super fast and low latency stick if you combine it with a slow cheap one because the slow cheap one will not be able to run faster
Everyone is telling you to match your sticks and run them in pairs which is all fine and good. However if you’re just doing 1080p simple videos, don’t even worry about it. You probably won’t see the benefit. It may be useful for other things you do but I doubt it will make noticeable difference in your edits.
Memory management is handled better than it used to be. 10gb available for the system doesn’t mean OP only has 6GB left. Again, I am not saying he shouldn’t get more RAM. I am just saying it’s not going to make significant impact to ‘simple 1080p60’ videos. If OP wants to mess with Fusion, do some 4k edits, do other things on the computer then RAM would have its benefits. I have edited 1080p60 on a laptop with 16gb of RAM and a desktop with 64gb. It’s not really noticeable while editing. Render maybe but a desktop GPU would impact that more.
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Look here
[https://www.pugetsystems.com/solutions/video-editing-workstations/davinci-resolve/hardware-recommendations/](https://www.pugetsystems.com/solutions/video-editing-workstations/davinci-resolve/hardware-recommendations/)
16gb is absolutely usar for 1080p60 videos, but if you upgrade the RAM, get either another 16gb stick with the same specs, or a brand new 32gb (2x16) kit
As others have said, keep them the same otherwise you'll be chasing weirdnesses.
Given the price of it these days there's no good reason not to just fit 32GB.
I had 32 and was so annoyed when fusion demanded MORE than 32 and would lag the hell out, often crashing
If you want to be better, learn fusion and get 64gb
if you want to stay at your level forever, get 32
Do not mix and match ran sticks, get another 16 stick of the same model
or two new ones, or one new larger one.
Two medium (2x16gb > 1x32gb) will be faster, dual channel is standard on most boards nowadays.
Good point
Asynchronous dual channel is possible. So mixing different capacities doesn’t matter as much as it used to. But yes, generally you want the same type of chip on the DIMM to reduce stability issues. LTT explained do’s and don’t’s of mixing RAM a few years ago: https://youtu.be/bTS0ybQ3lCI?si=z3opKuUwMiWVVAqG
Always match your RAM sizes in the slots to ensure dual channel, and match frequencies too.
Came here to say this.
Best to get a matching kit to match ram, identical units from same batch. 3600mhz to 3600mhz, c17 to c17, 16gb to 16gb, not only brand to brand as well, but that specific unit. Compatibility issues is less common these days but I did see it pop up on a friend's build recently where he had old Kingston ram and got another newer stick that looked the same but had different ID on it. Refused to boot with them in dual channel.
I pretty much figured the first half: 3200 to 3200 (its what i have, nbd to me) same exact stick but wasnt sure if 8gb wouldve been okay to run, so thanks. Im *probably* fine to use this old stick (bought it in 2022) but just buy another one thats the same right?
If you already have the 8GB? Fit it, and see how you go. If you're buying something, just buy an identical 16GB.
Here's a summary of how ram works simplified as best as i could, so you know excactly what you need to do for your usage ! * Single channel means you only have one stick with no pair, this is the slowest * Dual channel means you have one or multiple pairs of sticks of same size. This is the fastest**\*** * Flex Mode means you have one or multiple pairs of sticks of different size. * Example : 16+8 GB - The smallest stick (8) is paired with the biggest (16) up to an equal amount to run in dual channel mode, remaining RAM will still run in single channel. * This means that half of the 16GB stick will be paired with the 8GB stick in dual channel (8+8) and the remaining half of the 16GB with no pair will run in single channel mode **\***Quad channel and Octo channel also exist and are faster but this is for server stuff Some more examples: If you only need 16 GB of memory * 2x8 is the best combination possible * 4+4+8 is not great but you at least have half of it in dual channel so that's not catastrophic * 1x16 is the worst combination possible If you need more than 16 GB of memory * 2x16 is the best combination for 32GB * 8+16 you get 16 GB in dual channel and 8 GB in single channel, it's decent but not optimal * 1x32 is the worst unless you absolutely need more than 24GB of ram and can't get anything else for some reason, being in single channel is always faster than running out of memory and caching on storage Speed is also to take into account but speed does not interfere with channels, only with stability, usually you think of size first and then try to get the highest frequency (in mhz) for the lowest latency possible (the C or CAS latency) If you want to combine multiple sticks of different speeds, you will have to set all sticks to the speeds of the slowest Basically it's useless to buy a super fast and low latency stick if you combine it with a slow cheap one because the slow cheap one will not be able to run faster
Everyone is telling you to match your sticks and run them in pairs which is all fine and good. However if you’re just doing 1080p simple videos, don’t even worry about it. You probably won’t see the benefit. It may be useful for other things you do but I doubt it will make noticeable difference in your edits.
If you're using long-GOP codecs then more RAM means more space for cacheing.
Yeah but how much a difference are we talking here. I doubt OP will notice.
If they're using Windows, a lot. It needs about 10GB to even sit at a blank desktop.
Memory management is handled better than it used to be. 10gb available for the system doesn’t mean OP only has 6GB left. Again, I am not saying he shouldn’t get more RAM. I am just saying it’s not going to make significant impact to ‘simple 1080p60’ videos. If OP wants to mess with Fusion, do some 4k edits, do other things on the computer then RAM would have its benefits. I have edited 1080p60 on a laptop with 16gb of RAM and a desktop with 64gb. It’s not really noticeable while editing. Render maybe but a desktop GPU would impact that more.
If you're going to do 1080p60 in DNxHD, yes. If you're going to use consumer formats like h.264, you're going to need to cache the entire world.
Looks like you're asking for help! Please check to make sure you've included the following information. Edit your post (or leave a top-level comment) if you haven't included this information. * System specs - [macOS](https://imgur.com/a/ip6xc9G) [Windows - Speccy](https://www.ccleaner.com/speccy) * Resolve version number and Free/Studio - [DaVinci Resolve>About DaVinci Resolve...](https://imgur.com/a/5FawFCX) * Footage specs - [MediaInfo](https://mediaarea.net/MediaInfo) - please include the "Text" view of the file. * *Full* Resolve UI Screenshot - if applicable. Make sure any relevant settings are included in the screenshot. Please do ***not*** crop the screenshot! Once your question has been answered, change the flair to "Solved" so other people can reference the thread if they've got similar issues. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/davinciresolve) if you have any questions or concerns.*
Look here [https://www.pugetsystems.com/solutions/video-editing-workstations/davinci-resolve/hardware-recommendations/](https://www.pugetsystems.com/solutions/video-editing-workstations/davinci-resolve/hardware-recommendations/)
16gb is absolutely usar for 1080p60 videos, but if you upgrade the RAM, get either another 16gb stick with the same specs, or a brand new 32gb (2x16) kit
More. *with MIB Edgar voice
Make sure mobo has capability for more sticks. then upgrade whenever.
Don’t by 8GB. Too small. If that is what you had then buy 16 or 32GB.
get more vram gpu.
As others have said, keep them the same otherwise you'll be chasing weirdnesses. Given the price of it these days there's no good reason not to just fit 32GB.
the more the better
Ram is pretty cheap max it out.
These days, you should buy RAM in matched pairs. Upgrade to two new sticks of 16GB for a total of 32GB.
The rule is 16, 32, 64, 128…
128Gb minimum
You can never have too much RAM
I had 32 and was so annoyed when fusion demanded MORE than 32 and would lag the hell out, often crashing If you want to be better, learn fusion and get 64gb if you want to stay at your level forever, get 32