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Old 02-17-2018, 09:37 AM   #1
grammaton_feather
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Default DCS 2.5 Ryzen 1700 @ 3.84ghz and VR

Only ever owned Intel CPU's since the days of 386sx. Built my first AMD system last year... Ryzen 1700 @3.8ghz, 3466mhz ram. I'm having a hard emotional struggle living with 3.8ghz overclock. My old i5 2500k was clocked at 4.8ghz. I need ALL the FPS I can get because I run VR (HTC Vive doesn't have the benefit of ASW).

I'm really close to buying an 8700k and ditching the Ryzen. I'd keep the DDR4 which is rated at 4ghz and overclocks to 4.4 or 4.5 on Intel (stuck at 3566 on Ryzen).

Ryzen does well at screen res above 1080. Ryzen+ is coming eventually but rumour is that we'll be lucky to reach 4.3 or 4.4ghz with it.

I do 3d rendering so that was why I chose the Ryzen... however... My 3d rendering is ALL done on GPU via octane now so...

My GPU is a GTX 1070 overclocked +140 core and +500 Vram.

For flight sims and games I only run VR. Never play in 2d now.

Thoughts on VR + 8700k versus Ryzen?
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Old 02-17-2018, 10:54 AM   #2
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8700k will be superior to ryzen, amd is slow , cant Keep up with Intel ever.


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Old 02-17-2018, 11:47 AM   #3
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even with the 8700k and Rift I hardly ever get above 45fps in helicopter world down low.

Above the clouds and in the desert, there you see 90 fps.


So I would lower my expectations what a 8700k can pull in VR, they basically ALL suck, so do the GPUs for VR in DCS. There is no system yet to pull it off with ease and 90fps everywhere, far off imho.

I'd stick to the Ryzen, unless you got money to burn
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Old 02-17-2018, 12:09 PM   #4
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+1 BitMaster
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Old 02-17-2018, 04:58 PM   #5
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Quote:
Originally Posted by Haukka81 View Post
8700k will be superior to ryzen, amd is slow , cant Keep up with Intel ever.


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Always one or two steps ahead.

Quote:
Originally Posted by BitMaster View Post
even with the 8700k and Rift I hardly ever get above 45fps in helicopter world down low.

Above the clouds and in the desert, there you see 90 fps.


So I would lower my expectations what a 8700k can pull in VR, they basically ALL suck, so do the GPUs for VR in DCS. There is no system yet to pull it off with ease and 90fps everywhere, far off imho.

I'd stick to the Ryzen, unless you got money to burn
I kind of suspected this when running the Mig 21 on DCS 1.5. FPS was so low even when I tried it with a 4.5ghz coffee lake i3.

Performance is better since 2.5 but I guess we really need Vulcan.


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+1 BitMaster
+2 Bitmaster
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Old 02-17-2018, 05:11 PM   #6
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https://www.helisimmer.com/articles/...ng-flight-sim/
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Old 02-17-2018, 05:38 PM   #7
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I guess it can't come fast enough!!!!
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Old 02-17-2018, 06:07 PM   #8
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I guess it can't come fast enough!!!!
It's a crazy situation. We have all this new hardware and it's being crippled by ancient code and API. DX11 bottleneck. OpenGL bottleneck.

I have a GTX 1070...I run VR and there are very few games that make full use of the VR features of the GPU. Raw Data and Serious Sam support "VR-works" and I can max them out graphically with no fps drops.

I came very close to ditching my Ryzen and running back to Intel today but Bitmaster is quite right.. an 8700K won't boost performance enough to power an ancient API.
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Old 02-17-2018, 06:52 PM   #9
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Agreed. The problem isn't our hardware but the core DCS software. Unfortunately, without a major engine rewrite, I don't see a great deal of improvement in the future. Vulkan might help but it is still a bandaid approach.
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Old 02-17-2018, 08:05 PM   #10
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Quote:
Originally Posted by grammaton_feather View Post
Always one or two steps ahead.



I kind of suspected this when running the Mig 21 on DCS 1.5. FPS was so low even when I tried it with a 4.5ghz coffee lake i3.

Performance is better since 2.5 but I guess we really need Vulcan.




+2 Bitmaster
Problem is not Ryzen...it's DCS being single threaded....Ryzen are optimized for intensive multitasking applications... anyway
I don't have VR (well I tried and liked it, but preferred to wait until new technologies) but with 2.5 my R7-1700x is doing pretty well, always around the 100fps (my monitor is 144hz).
I know that 8th gen i7 are much more faster in single thread (and probably but of a lesser margin also in multithreading - but you should compare it with 7th gen Intel CPUs) but for me (I had a i7 7700 on another machine) the performance difference (not talking about VR) was not existant...so only theoretical...
Will see with Vulkan and 2nd gen Ryzen...

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