32GB Isn’t Enough - 32 vs 64 vs 96GB DDR5 RAM

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Windows caching will always try to fill up your RAM, filling up the RAM with cached data is a good thing. Everything that is read off a storage device is read into RAM before it goes to the CPU or GPU (until DirectStorage becomes the norm), what the cache does is leave all that data in RAM after it's been used so that you don't need to read it from storage the next time you access it. Windows can also load things into cache things that it expects you to use at some point. The thing to remember is that the cache is flexible, it takes up whatever slack there is in your RAM but it's also given the lowest priority so Windows will start dumping things out of the cache to make space for programs (e.g. games) that are running. If you look at the memory stats in Win10 (presumably 11 as well) Task Manager, you can see that the amount of data that's cached is counted as part of the 'available' stat and not the 'in use' stat. As for 0.1% lows; the amount of RAM you have limits how much the game can precache (load things into cache well before they're needed) textures, models etc. If there isn't enough free RAM for it to precache things and it has to load them from storage at the time they're needed, you could see a stutter while that process happens. If you have a shitload of RAM the game engine can, for example, precache stuff that's further away from you in the game environment so you never reach a point where the game engine is like hol' up 0.2s while I load something cos that load already happened in the background or during a loading screen. That's why RAM affects 0.1% lows greatly but barely affects average and 1% lows.

My first PC I bought when I was a kid had 4MB RAM. Not GB. Ran at 16 megahertz. Had an EGA graphics card that could display 16 colors all at the same time. I love how far tech has come over the years. I've basically never stopped upgrading since then. My next upgrade is to 64GB.

32GB is enough

I am playing games at 4k with a 7800x3d and RTX4090 on windows 11, and no issue 32GB...no stutter, nothing...smooth game play 100% of the time.

Windows uses almost ALL of your (leftover memory after allocations) as a cache. All you have to do is run programs and open data files. There is really no performance downside to it, the cache never gets swapped out to disk, the read cache can be discarded instantly to satisfy a memory allocation, and the write cache generally hides how slow your storage really is. It's really no surprise that with more memory you have somewhat better performance since its less likely to discard something that's about to be used. The problem is, memory isn't free and at some point you need to draw the line on how much money you want to spend vs what that memory gets you.

It would also be nice to see how the 48GB kits compare between the 32 and 64 kits. There are a lot of these for DDR5 now that are dual rank so it's more relevant.

😂 I remember being a kid at PC world when my family bought our first computer back in 98 and the PC had 32mb of Ram, guy was raving about how much memory 6GBs is and that we would never fill it up.

How many slots did you use with the 32, 64, 96 kits? In other words, how many sticks of RAM in each kit? Because there are performance upgrades there... single vs dual vs quad channel memory. 😅😅😅

They went to the effort of sending you 3 kits of RAM and all you did was test 2 games? Is this some kind of joke?

Not only is 32GB enough for literally everyone that doesn’t specifically know why they need more, but smaller capacity chips can generally clock tighter and faster - all other things being equal. A-Die vs M-Die, single rank vs dual rank, prioritizing frequency OR choosing tighter timings latency. You know, things that would’ve made a good video.

If you're just gaming, a good 32gb or maybe 48gb kit is more than enough. If you're doing a load of stuff in the background or have huge workloads then maybe more could help. For an average user, 32gb is still more than enough.

An additional question id have is would there be a benefit from have 4 sticks or just 2 sticks of ram if i went with ether 64 or 96gb set ups?

My last build had 32. This time I went with 64 and regret nothing! I've literally seen 40+ being used while gaming with just a Twitch stream up (I wasn't streaming that time) in the background and Discord for our voice chat. I do video editing and stream as well so that was a big driver for me getting 64 in the first place. I'd say 32 is still really solid especially if all you're really doing is gaming, but personally I think if you're building new from here forward just get a 64 GB kit and not worry about it from there forward. Games and programs are getting bigger and more complex so I'm sure we'll see more benefits from more RAM soon (outside of having ALL the Chrome tabs open at once).

I actually just went from 32GB to 64GB just a week ago. Crazy that you posted this today!

I love how insane you seem in your intros lmao

That was for sure the craziest and maybe the weirdest intro I have seen yet. 🤪

I have 64Gb Ddr 4, because I don't upgrade my computer often. I did notice a difference in alot of things. Alot of programs almost seemed like they didn't have to load at all. And they may have been sitting in ram. I have considered getting another 64gb considering ram is still pretty cheap for Ddr4

I suspect lows differences are because of the memory structure. At the dawn of SSD those with larger volume would also have significantly faster speeds. Because of parallelization. Maybe this is something about memory controllers, which are now on sticks iirc or the way memory chips are connected or their particular type.

For the past 10 years I've ran 32GB in all my systems, but going forward the minimum I will use is 64, but I am really interested in the 96GB kits.