That was a typo. 4 single rank DIMMs were close to 2 dual rank DIMMs. Here’s an example of the potential benefit. If you’ve seen performance improvements more substantial than this, let me know.
1 Like
Okay, that makes more sense. 
As for how much of an improvement you can see, with a 3080 or better and at 1080p you can see up to 20% improvement going from Single Rank to Dual Rank. Of course, as you scale the GPU down, or scale the resolution up, the improvement you will see will diminish.
1 Like
To a CPU if the MB is only dual channel then it sees 4 single rank sticks and 2 dual rank sticks the same way.
1 Like
so true. also…more RAM at a slower speed is better than less RAM at a faster speed.
@marcgii also, 3600mhz is the sweet spot for RAM and infinity fabric in price to performance gains.
1 Like
So true. You do not things going to page file.
I suspect when DDR6 arrives to replace DDR5, we will have PC’s that can support enough memory and DIMM’s with enough density to start getting into proper and serious use of RAM cache / drives for software, etc. that will be neat!
1 Like
You already can to a certain extent with multi tiered storage arrays in server settings using optane modules. Real Optane not the consumer stuff. Only $1,000 or so per 128GB dimm.
yeh…but I’m talking about consumer space, not enterprise. 
If pattern holds, I would think that DDR6 would start at 32GB DIMMs and move to 64GB DIMMs within 2-3 years of widespread adoption, so that is very plausible. And you’re right, it will be really cool to see that.
DDR5 scales much better than DDR4 for density. Samsung is already talking about their 32GB DDR5 IC’s.
Maybe we will see 64GB DDR5 DIMMs in a couple of years then. I hadn’t heard about that. I just knew that DDR5 was starting at 16GB DIMMs.
Only 10 of those will be needed to install warzone in system mem.
2 Likes
@Michael that will be a boon…it will probably take a generation or two of DDR5 platforms from AMD and Intel, but making 16GB the default standard / minimum will be a good move!
1 Like
Yep. And given what prices will be like for the first 12-18 months anyways, getting 32GB kits minimum will make it a little easier to swallow.
1 Like
20%? That’s really extreme. I suspect I will get at best a few percent for my system. I’m running a 3080ti at 4k. But I’m mainly interested in improving my 1% lows. Once my 5800X arrives (upgrading from 3600X), I doubt I’ll be CPU bound any more.
Now I have figure out what to buy. The Crucial ballistix 2x16, 3600 kit would have been the easy choice. But those likely aren’t shipping as dual rank anymore. I could go with the high performance and cheap Patriot 4400 Mhz, single rank kit ($127) and run it at 3800 Mhz. I imagine I’d be able to run it at the fast Samsung B-die timings (from Ryzen RAM calculator). Do you have any suggestions?
Why would you use a 3080 at 1080P, unless you are benchmarking? Even if you discount the whole price aspect, the architecture of the 3080 is not well suited for lower resolutions VS higher resolutions.
If you are gaming at 4K with a 3080Ti, I wouldn’t expect to see any uplift to your avg frame-rate, but it isn’t completely unreasonable to think you could see some gains to your 1% and 0.1% lows, but how much, I’m really not sure.
As to the Crucial 2x16 kit being Dual Rank or not, it’s honestly a toss up. Since Crucial is owned by Micron, all of their sticks are Micron dies. And Micron does have 16GB Single Rank DIMMs, so I couldn’t tell you which it would be. As for suggestions, how much do you want to spend/not spend? Oh, and do you care about what they look like? Do they also need to be fairly low profile or does the height of the heat spreader not matter?
1 Like
Depends on the game it is completely possible to CPU bind a 5800x even at 4K. If the game is particularly single threaded or handles a lot on a single thread and only passes off some of the load it might look like the over all utilization is low but you can still be CPU bound.
But overall it doesn’t actually matter you will always be bound by something. The only thing that matters is if you get enough performance that you are happy with how it runs.
Edit:
Just noticed buildzoid has the kit I use in his list, but wow the price on memory has spiked… I guess clocking out of the PC scene while all the shortages have been going on was not a bad call.
1 Like
I Probably wouldn’t spend more than $200. I’d most like go with the best bang for the buck option. Looks don’t matter at all and I doesn’t have to be low profile.
I didn’t think prices increased that much. How much was it?
I got my G.Skill Ripjaws 3600 cl14 32GB kit for about $250 so anywhere from 50-100 if part picker is correct.
To be fair it was during the holiday buying season so it might have been lower then normal as well.
Edit:
I do apologize to the PC gods, I know RGB makes computers faster, but I can’t in good conscience actually use RGB RAM.
2 Likes