Cpu for pimax8k (1800x/7700k)

Heya!
I’m planning a build in a mITx-case (ghost s1) but have difficulties choosing between amd/intel. Since I don’t have a motherboard yet, I 'm free to choose what brand to buy (will probably shop second hand). I have mainly considered the 1800x and the 7700k but are open to suggestions. The main usage will be VR with the pimax 8k (and maybe some occasional gaming on an old projector with 1080p), so no streaming/video editing or similar. The gpu will probably be an 1080Ti or something midrange from the nextgen gpus depending on price/performance of gpus at the time the pimax is delivered. I prefer to start my build now and don’t wait for benchmarks after the pimax-release so it is speculation time!

I know the minimum specs for the pimax 8k, and have seen some compares regarding ryzen/i7 on vive and rift but are interested in your thoughts regarding cpus and pimax.

So, to start up the old war… :slight_smile: amd or intel?

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Well, anything in VR is really resource intensive.

So if you can, grab a 8700k + fastest ram you can afford + 1080ti.

Intel and Nvidia have the best support for VR.

The rest really don´t matter.

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By the looks of it at this time for gaming intel looks to win.

As @Douglaster has said if you can afford to go 8700k would give best results.

Here is an eurogamer article on the 1800x

https://www-eurogamer-net.cdn.ampproject.org/v/s/www.eurogamer.net/amp/digitalfoundry-2017-amd-ryzen-7-1800x-review?amp_js_v=a1&amp_gsa=1&usqp=mq331AQCCAE%3D#referrer=https://www.google.com&amp_tf=From%20%251%24s&ampshare=https%3A%2F%2Fwww.eurogamer.net%2Farticles%2Fdigitalfoundry-2017-amd-ryzen-7-1800x-review

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The i7 8700K or the i5 8600K would be a good buy. Check the link below, there really isn’t much difference.
The i7 8700K is slightly stronger, but the i5 8600K is right up there so it is a viable option if price is a concern.

Compare/Intel-Core-i7-8700K-vs-Intel-Core-i5-8600K

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Single core yes small difference. Multicore is very much better on 8700k(+39-43%) with 12 threads vs 6.

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If this is a pure gaming machine then would it not be better to get the i5 8600K and with the $$ money saved get a decent cooler and overclock it to 4.9Ghz?

The i7 and its Multithreading would obviously benefit productivity and CG apps, also maybe if realtime rendering becomes more popular for gaming then it would def be a better choice.

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Well considering the latest games shown at E3 (max quality) can only get to 30fps in 4K on a 1080Ti then I would probably get a 1070 Ti as a stop gap card for the games we have now. Unless you are loaded then just get a 1080Ti and sell it when the new cards come out.

As for AMD vs Intel. I have always gone Intel due to stability. Also, what is the Motherboard cost for top end AMD CPU’s vs Intel? And would they support CrossFire/SLI if VR based dual cards becomes more popular over the next year or two.

NVidia + Intel would be my choice.

From what i ve seen ryzen 2600s and 2700x perform better with higher ram speeds too…and memory is still expensive.if i was going to upgrade from my 6600k 4.4ghz .it would be 8700k.

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I don’t see that point in changing the cpu although it looks different on paper. I’m on a 6700k and it gets me anywhere I want although I use heavy cpu hungry programs on daily basis. Ok, probably with Ryzen I could play a game during rendering which I can’t with my i7 but more cores does not mean that it’s gonna be faster (btw. sometimes I actually need to disable Hyperthreading for more efficient audio-rendering)

More multitasking capability is nice but unfortunaly not that much supported within a single programm especially games as far as I know.
Look how long it took before adobe was even making use of dual core.
So unless somebody needs to play a game and render something in the background I guess most cpus will be adequate for now and I does not need to be one of the expensive ones.

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These days, most “big” games support multithreading, as do popular game engines like Unreal, Source (Valve), and Unity.

"For example, Battlefield 4 can actually use 8 cores.

Games that use 4 or more cores: BF3, BF4, Witcher 3, Far Cry 3/4, both Metro 2033 and Last Light, latest Assassin’s Creed and Dragon Age etc." How are games doing with multi-threading? | Tom's Hardware Forum

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Using
-B350 Tomahawk
-Rizen 5 1600 stock speeds
-GTX 1070 8g Zotac ( absolutely love it !!!)
-DDR4 Dominator Platinum 3000 16 gigs ( 2x8 gigs)
-M.2 SSD Samsung Evo
-Rift Cv1

Getting
-90 FPS on high/ultra settings in Pcars2 online with 25 on grid ( cpu load 12 per cent /gpu 95+ )
-45 FPS on high in DCS World ( cpu load 35 per cent / gpu 95+ )
-90 FPS Onward max settings (cpu load 7 per cent gpu load 95+)

Thinking in getting a Zen 2700x and a 1080 TI (if needed)

At the moment everything is running really smooth.
Love Ryzen, always been running intel but decided to give a try a really happy with the combo Zen/GTX

Edit : 1070 replaced by a 1080ti FTW3

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yes, they support/„use“ it but I doubt a major gain/benefit in „practical“ performance in 4 cores vs 4+ cores. There may be a handful of games that gain something (still wondering how much), but hey, if you‘re not on budget any frame counts :slight_smile: I heard lots of good stuff about Ryzen with Premiere though.

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As time goes multi threading in games & prog will be standard.

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Ryzen is actually great for gaming, last I looked Intel only outperformed it in single core tasks. I’m running a 1700x oc’d at 3.9 with ram at 2933 and a 1080. I have no issues pushing my Samsung Odyssey at high settings.

I haven’t looked into the new and upcoming ryzen versions much but iirc they are able to run faster ram which has a big effect on Ryzen performance. Might be worth checking out.

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Fellow Ghost S1 backer here.

For your described use-case I would personally go for Intel.

Overall better gaming performance, it is title dependent of course but more “wins” for Intel on that one. Ryzen’s prowess really is in heavily multi-threaded applications, and as you described you will not really do that. Games that do utilize 4+ cores in general still put most of the heavy work on <4 of them, and will benefit more from higher IPC and clock-speed than they will from more cores/threads. But as usual YMMV, so I would suggest you would check out some more benchmarks from publications with proper testing methodology.

For VR its closer to a draw. You might already have seen it, but I suggest you check out GamersNexus article/video about it and decide for yourself. It should be applicable to the 8K too.

For GPU a 1080ti sounds great, seems like the EVGA 1080 Ti FTW3 is one of the best choices for the Ghost S1. Personally I’m waiting for the next gen (damn you Nvidia, just release something)

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Linus Torvald said it best to Nvidia. Lol

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Linus Torvalds rants always makes me happy hah

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Thanks a lot for all input! I considered your thoughts and bought a 8700k. What do you think about ram? Will 16 Gb still be sufficient?

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16g should be sufficient for vr gaming.

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I’m pretty sure a Ryzen 2700X with fast RAM is the better choice budget wise and as a long term solution.

The intels advantage in VR was the frame latency, it’s not so much about FPS really. The intels had much faster RAM access on standard configuration as usually benchmarked. The new Ryzen especially with fast RAM do close the gap in frame times, the cons&pros turn then in favor for the AMDs IMHO (Id recommend DDR4-3200 or faster at CL12/13).
Never ever underestimate the multi threading aspect, there are already games where 4Cores+HT fall behind the newer many cores, especially in high resolution modes where the CPU handles some postprocessing FX, and it’s only getting better for many cores vs. the ol 4 core ones…

16GB is easily sufficient especially with Windows 10 RAM management. Don’t get fooled on that, more RAM only speeds down timings and that is more likely to cause FPS dips in VR when too much is goin on at once…

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