Leonov

KSP Unofficial Official Computer Building/Buying Megathread. (All Questions Acceptable.)

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Hi All,

Been playing on my self-built PC for about 3 years now, so it's getting around to time for an upgrade. Current specs: 

  • i5-6500 3.2 Ghz Processor
  • MSI PC Mate 170A motherboard
  • 16GB RAM (2x8GB)
  • GTX 960 GPU
  • 256GB SSD, 500GB HDD
  • Outputting to 1080p 60Hz HDTV (no need for 4k or ridiculous framerate)

I've heard that KSP relies on single thread performance more than most games do, so I was wondering if it would be better to upgrade my CPU or my GPU next? The motherboard I have is a fairly entry-level model when I purchased it in 2015, so I'm wondering how much benefit I can get while staying on the LGA1151 socket. Is it time to upgrade the motherboard as well? If so, is it worth considering the new AMD processors?

Thanks for all your feedback!

--miamijuggler

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2 hours ago, miamijuggler said:

I've heard that KSP relies on single thread performance more than most games do, so I was wondering if it would be better to upgrade my CPU or my GPU next? The motherboard I have is a fairly entry-level model when I purchased it in 2015, so I'm wondering how much benefit I can get while staying on the LGA1151 socket. Is it time to upgrade the motherboard as well? If so, is it worth considering the new AMD processors?

Depends. Are you playing solely KSP or other games too? Are you doing other tasks that would benefit from better multithreaded performance? If your main focus is pure KSP performance, I would say go with a newer Intel CPU. Your GPU I think should generally be good enough for 1080p unless games have recently gotten a lot more demanding.... but if you are going to do more intensive games other than KSP I would think maybe consider a GPU upgrade.

Mother board compatibility/need for upgade depends a bit. I'm not so sure on that, though I think you would be fine supporting the Intel 7xxx series chips, so if thats what you would upgrade to, you shouldn't have to. Anything else would need newer hardware.

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http://www.cpu-upgrade.com/mb-MSI/Z170A_PC_MATE.html

Your board seems to support Kaby Lakes. So you could go for a 7600K or 7700K and a good aftermarket cooler. But the high end CPU options for older boards tend to stay expensive or even become more expensive as stock runs low and users become more desperate to upgrade older platforms.

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On 12/5/2018 at 4:20 PM, miamijuggler said:

I've heard that KSP relies on single thread performance more than most games do, so I was wondering if it would be better to upgrade my CPU or my GPU next?

You're right that KSP performance is almost exclusively reliant upon single-thread CPU performance (Until you start running a ton of graphical mods).  Unfortunately, the single-thread CPU performance increase for Intel CPUs over the last few generations has been extremely minimal, almost to the point of not being worth it.  All that Intel has been doing is slapping more and more cores together, which doesn't help KSP much at all.  And AMD's CPUs are even worse (in terms of single-core performance).

If you are looking for better KSP performance, your only major option will be overclocking.  A de-lidded 8600K, Z370 motherboard and either a huge air cooler or an AIO water-cooling kit will pretty reliably get you past 5ghz. That will produce noticeable performance improvements for KSP, although it'll give almost no benefit to any other games (besides maybe Dwarf Fortress or Factorio).

But if you're just going to get the newest gen CPU and run it at stock clock, you're not going to see much gain.  Definitely not enough to justify the expense.

Edited by tsaven

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Good to know tsaven. I haven't messed with overclocking much (or at all), so I'm not sure I'd feel comfortable venturing into 5Ghz territory on my first trip out. I might see if I could get closer to 4Ghz, to start. :D

 

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I have a laptop and I think the screen connector is bad. When ever something is moved around in screen or a window open,  the lines will change colors in the area. How difficult of a repair is it, how much will it cost? How much will it cost for it to be professionally repaired?3N4Yx54.jpg

Oh, and won’t a graphics card speed up processing astrophotos?

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Time to purchase a new gaming rig, been without since 2014, making do by playing KSP on PS4, which isn't too bad, I enjoy stock but I also want to try mods and want to be much less restricted by part count and have the latest version! Also 4K.

The specs of the rig I currently favour are as follows (will also be playing other games like CIV, two-point hospital and the likes):

AMD Ryzen 7 2700X Eight Core/Sixteen Thread Processor (4.3 GHZ)

16GB DDR4 3200MHz RGB Memory

 RX Vega 56 8GB Graphics

512 GB SSD

2tb HDD

How do you think this will work with KSP, could I go absolutely mad with mods and monster builds? Is there a more suitable processor (not sure if I'll benefit much from the 16 threads).

I get the basics of what I need but I don't know if I could do more with less, perhaps the GPU could be better? I am no expert with computers.

Any advice will be appreciated :)

 

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5 minutes ago, Harry Rhodan said:

Well Intel has the better single core performance

Thanks, that's a good site! So switching for an i7 would be my best bet but not a huge gain over an i5 (with regards to KSP) if I'm reading correctly?

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23 minutes ago, Aquaticfantastic said:

Thanks, that's a good site! So switching for an i7 would be my best bet but not a huge gain over an i5 (with regards to KSP) if I'm reading correctly?

But remember that the result on that site are all from a generic synthetical benchmark. Performance in real applications may vary. But so far the single core value has been pretty accurate for estimating the performance in KSP.

Yes, it all comes down to how much you need multicore performance for other stuff and how much you are willing to pay for it. The best bang for the buck is probably still the 2700x.

Edited by Harry Rhodan

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It should be ok.

You CPU is similar to mine (i5-3570k) in terms of performance and the graphics card is overkill in terms of KSP requirements, but useful for other games.

Personally I'd be happier with 16GB Ram than 8 though. That allows me to run KSP plus some bits and pieces (browser, Photoshop etc.) in the background, with some overhead left over.

Edited by purpleivan

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That will easily run KSP and most other games

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14 minutes ago, klgraham1013 said:

Definitely.  KSP's bottlenecks are CPU (physics simulation) and ram (memory leaks and/or mods).

That and until 1.1, KSP fit in 2G of RAM*.  8G shouldn't be a problem (unless you are browsing the forum with all the tabs open while running with all the mods).

* is it even possible to run in 32 bit mode now?  I'd expect it to work well (although mods might be an issue) in 4G systems if it can.

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9 minutes ago, wumpus said:

is it even possible to run in 32 bit mode now

Didn't they end 32 bit with 1.5 or is that coming in 1.6?

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2 hours ago, klgraham1013 said:

Didn't they end 32 bit with 1.5 or is that coming in 1.6?

They ended 32-bit with 1.5.

 

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Looks good but I'd with to 16GB of RAM if you're planning on running mods. The entire game - all textures and all mods - are loaded in RAM, so the more mods you have the more RAM you'll need.

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1 hour ago, Tyko said:

Looks good but I'd with to 16GB of RAM if you're planning on running mods. The entire game - all textures and all mods - are loaded in RAM, so the more mods you have the more RAM you'll need.

There's another thing to remember when it's comes to RAM.

The game (or rather Unity) doesn't release allocated structures until it has to (that's why we have issues with GC).

That's why the memory footprint appears to increase to longer you play, or rather the more you jump around and create or un-pack more stuff.

This is normally  a smart move since it means that the unpacked stuff isn't repacked and reunpacked over and over again.

It becomes a bad move since Unity is quite bad at understanding and differentiating physical and virtual memory ...

I've actually added a little memory watchdog that I start with KSP (included in my Start_KSP script). It starts beeping when KSP has allocated more memory that a set value. At which times I restart :)

But in short, a KSP-box can't have too much RAM ...

Edited by Curveball Anders

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You are a newbie on the forum, so I don't have any other posts you made to extrapolate intent from, but if you were a forum regular, I would swear this was a humble-brag.  ;)

You're computer will run KSP just fine.

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1 hour ago, Fearless Son said:

You are a newbie on the forum, so I don't have any other posts you made to extrapolate intent from, but if you were a forum regular, I would swear this was a humble-brag.  ;)

"New" PC appears to be about 6 years old so... not the best brag on the block x)

It will be fine, but like everyone else's PC it will hit a performance wall if you go for too many parts in a vessel. My guess is you'll feel the lag around 200 parts in vacuum, maybe 150 in atmosphere. Which is actually plenty to do pretty much anything, unless you get into aesthetic building and start slapping on things you don't need but which look fun.

Edited by eddiew

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15 hours ago, bookingvaness193 said:

SPECS= 

i5 4460 
8 gb ram 
gtx 970 
gigabyte h97 motherboard 
1t hybrid drive 

i just want to be sure, before i buy the game

Yes, definitely. You may want to upgrade your RAM if you want to install large mods. 

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It'll run KSP just fine if you don't try to launch an interstellar cruiser or Star Destroyer replica or something else crazy. Your CPU is comparable to my AMD Ryzen 3 1200 which handles KSP very well with moderately sized vessels, so you should be fine.

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