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Grallak

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So essentially I am looking at three computers. One with 4 x 16 RAM, one with 2 x 16 RAM and one just 16 in comparison to my current 8 RAM toaster. For each of the above choices, what kind of performance improvement would I see for each of them over my current rig? I want to know if any of these would allow me to finish eu4 in one sitting (provided my cps allows it)



 
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Guibou

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Ive recently upgraded from 8 to 16 and didnt see an impact in eu4.

I think for eu4 its mostly a processor problem. That the game engine cant use many cores. My knowledge stop there but i remember a thread about processor that i understand nothing about that should be interresting if you know about that.
 

ArtFart

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Firstly, I highly recommend not buying a prebuilt PC and instead buying parts seperately and constructing it yourself. Not only do you save a LOT of money from postage, but also these companies tend to charge a lot for "labour" costs and they'll buy parts for the PC's at high rates. It's better for you to build the PC yourself, that way you'll know exactly what's in there, exactly what each thing needs to be compatible etc etc.

Secondly, 16GB of high speed RAM is normally absolutely fine for any game. 32GB is overkill, but it's worth getting if the price difference isn't massive. For EU4, RAM doesn't really effect it too much, so yeah 16GB is plenty. EU4 relies on single core score, so the newer gen Intel's are really good for EU4.
 
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yyrkroon

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RAM never really makes things go faster, but having more ram removes a potential slowdown/bottleneck when you run out.

As long as you have adequate RAM, having 1x adequate, 2x adequate or 10x adequate won't make a difference.

*Unless you move everything to a RAM DISK which could reduce your HDD reads to next to nothing. :)

As for whether EU4 takes advantage of multiple cores or threads.... I seem to recall people making the claim, then devs coming on and explicitly stating that EU4 is not single thread bound... but then people running benchmarks where they limited the game to a single core with little performance hit. So ¯\_(ツ)_/¯
 

Grallak

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Yeah so it's processing then. My current is a five year old 3,6 ghz one. The newer for 2k would be about 4,9 or 5,0. So maybe about a 40-50% improvement in performance. It is especially during the mid 16 hundreds that the game starts to be a bit slow.

Also I could as you say probably build it myself for maybe half the price and then just ship the parts around because I like to travel around a lot. If you know any good tutorials to get a similar setup as the nemesis one please feel free. Mighty appreciated. How much of a price reduction would it be if I live in Sweden and try to build something like the nemesis?

P.s. hope they make vicky 3 dual core, but that is just me having wet dreams
 

Drmcdevitt

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The 5950X processor will have the fastest speed 5 speeds. The other processors are 10th gen intel processor and while fast enough you wont get to 2 second month ticks with those. The ram is irrelevant after 8gb as a surface laptop go 2 with 8gb ram runs the game decently without running out of ram. For reference I've done many tests at speed 5 on tons of systems. Examples: All at 1444 start.
12700H - 2-2.4 second month ticks speed 5.
12700 Desktop - less than 2 seconds
i7 1165g7 - 3.5-4 seconds
M1 - 4-5 seconds
M2 - 2.5-3 seconds
Risen 5900hs - 2.5 seconds or so.

many things comparable here more or less. Apples cpus are fast but there are often bottlenecks in translation so where I can see a 2 second month with my M2 MacBook Air (fanless remind you) there are times where a month tick may go up to 5 seconds, where say the 12700H in the Alienware x14 (loud as hell) will process at 2 seconds almost everytime. So if I were choosing to play Eu4 a considerable amount of time id go with the ryzen machine from the ones listed, especially if it were single player if money were no concern.
 

schondetta

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more RAM from 8GB isnt going to improve EUIVs performance in any real way.

upgrading PC parts is going to have diminishing returns if your concerned only about EUIV itself. As its an older game that is fundamentally limited by the games programming.
 

merilessj

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As others have said to get Eu4 to run faster invest in single core speed. That being said more ram is always good due to modern browsers requiring more RAM, and other modern games generally needing 8 to 16gigs od ram
 

gianlucad

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There isnt much of a reason to go top of the line just for EU4.
There is no difference for anything between speed 1-4 since the tick rates are capped.
Youd only really want a fast CPU if you intend on going as fast as possible in speed 5, going faster is only really that much of a benefit if youre going to play hands off.
 

TDarksword

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For those saying quantity of RAM doesn't make a difference, that's true to a certain extent, but it can make a fairly big difference especially with Ryzen processors.

Single stick of RAM is always bad these days, all motherboards/processors support at least dual channel, so 2x8GB will perform better than 1x16GB, in the same way 2x16 will work better than 1x16 as the computer will spread the data over the two sticks so it can access them in parellel rather than load it all onto one. (Note much as it might seem like it, no this wont be double the performance :) )

It gets a little more confusing going from two to four slots with Ryzen processors, as there are configurations in which four slots of RAM will perform better than two slots of RAM (ie 4x8GB will do better than 2x16, or 4x4GB v 2x8GB), and this is tied up with memory ranks, which unfortunately is not something that is generally given as information on the sales information about RAM.

Ryzen (Zen 3) processors work best with 4 ranks of RAM, which is either 4 single rank RAM modules, or 2 dual rank RAM modules. In the past most 16GB modules were dual rank, but with the increasing density of RAM, most are now single rank. The easiest way to tell is to look at the RAM and see if it has chips on both sides of the stick (dual) or on one side of the chip (single), but in most cases to do that you'd need to buy the RAM first (note you cannot go by any pics on most sites, as early versions may be dual rank, but later ones single and the website wont bother to update the pic, or just flat out use a generic pic for an entire range of sizes).

So in the above 4x16 is likely to be better than 2x16 which will be better than 1x16 even if EU4 itself doesn't use that much RAM.
 

RobbieAB

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For those saying quantity of RAM doesn't make a difference, that's true to a certain extent, but it can make a fairly big difference especially with Ryzen processors.

Single stick of RAM is always bad these days, all motherboards/processors support at least dual channel, so 2x8GB will perform better than 1x16GB, in the same way 2x16 will work better than 1x16 as the computer will spread the data over the two sticks so it can access them in parellel rather than load it all onto one. (Note much as it might seem like it, no this wont be double the performance :) )

It gets a little more confusing going from two to four slots with Ryzen processors, as there are configurations in which four slots of RAM will perform better than two slots of RAM (ie 4x8GB will do better than 2x16, or 4x4GB v 2x8GB), and this is tied up with memory ranks, which unfortunately is not something that is generally given as information on the sales information about RAM.

Ryzen (Zen 3) processors work best with 4 ranks of RAM, which is either 4 single rank RAM modules, or 2 dual rank RAM modules. In the past most 16GB modules were dual rank, but with the increasing density of RAM, most are now single rank. The easiest way to tell is to look at the RAM and see if it has chips on both sides of the stick (dual) or on one side of the chip (single), but in most cases to do that you'd need to buy the RAM first (note you cannot go by any pics on most sites, as early versions may be dual rank, but later ones single and the website wont bother to update the pic, or just flat out use a generic pic for an entire range of sizes).

So in the above 4x16 is likely to be better than 2x16 which will be better than 1x16 even if EU4 itself doesn't use that much RAM.
I think you are confusing rank and channel in memory terms.

Yes, Ryzen, and most other processors, will perform slightly better if you distribute all the RAM over every available memory channel. More memory channels means more memory bandwidth available. If memory bandwidth is a factor in performance, 4x4GB will outperform 2x16GB if you don’t actually need the memory space!

Rank can have a small performance impact, but generally is very small if it is measurable at all. The only study I have seen on rank impacts suggests dual rank channels will fractionally out perform a single rank channel (Exact reason not entirely understood). Quad rank or higher channels generally don’t perform better outside of very specialised situations.
 

Less2

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Has there been any tests on whether the 3D cache ryzen processors have a big uplift in EU4 performance?

Agreed that RAM amount doesn't matter at all for performance as long as you have 16 GB (8 GB is probably fine if EU4 is the only thing you run but that's never the case). RAM speed definitely could matter but probably not much if you're either on DDR5 or buying decent DDR4 memory.
 

CthulhuTactical

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Buy the best cpu you can afford i would recommend Intel 12600K or 12700k if you got more money for EU4. You want a high clock and anything that do well in SuperPi test, which will simulate how EU4 will run. Any cheapest modern graphic will do for EU4. 16GB of Ram is absolutely fine for EU4.
 

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I think you are confusing rank and channel in memory terms.

Yes, Ryzen, and most other processors, will perform slightly better if you distribute all the RAM over every available memory channel. More memory channels means more memory bandwidth available. If memory bandwidth is a factor in performance, 4x4GB will outperform 2x16GB if you don’t actually need the memory space!

Rank can have a small performance impact, but generally is very small if it is measurable at all. The only study I have seen on rank impacts suggests dual rank channels will fractionally out perform a single rank channel (Exact reason not entirely understood). Quad rank or higher channels generally don’t perform better outside of very specialised situations.
Actually I wasn't :)

Both channel and rank make a difference with Ryzen processors, though dual channel, then CAS, then ranks is normally the order you want to look at for performance. :-
https://www.overclock.net/threads/z...ticks-vs-2-sticks-gamers-nexus-claim.1774497/ gives a good breakdown as to why this is a fact (and why only for certain configurations of 16GB modules).