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Ryzen and SLI, some questions for owners.
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BangTail
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Videocard: EVGA GTX 1080Ti SLI
Processor: Intel i9 7900X
Mainboard: MSI X299 Gaming Pro AC
Memory: 64GB GSKILL DDR4 @ 2800
Soundcard: SB ZxR
PSU: EVGA SuperNova 1050W Gold
Default Ryzen and SLI, some questions for owners. - 05-31-2017, 11:00 | posts: 2,299 | Location: Canada

So, I'm looking at AMD (and Intel) for my next build (not yet decided, need more info) but one thing I had heard that makes me apprehensive about AMD is that there are issues with SLI.

If any of you are using Ryzen with SLI, I would love to hear about your experiences.

1. Is the performance solid (scaling etc)?

2. Are there any issues (no matter how minor)?

3. If you were an Intel user previously, are you happy you switched?

I'm only interested in the objective opinions of those who own or have extensive hands on experience with Ryzen/SLI please.

Last edited by BangTail; 05-31-2017 at 11:03.
   
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Steppzor
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Videocard: MSI 1080 Ti Gaming X
Processor: Intel i7-4770K @ Stock
Mainboard: Gigabyte GA-Z87X-UD3H
Memory: Corsair Vengeance 16GB
Soundcard: Kingston HyperX Cloud II
PSU: XFX ProSeries BE 1050W
Default 05-31-2017, 11:58 | posts: 717 | Location: Norway

I don't have first hand experience with it, but I got a buddy who is not part of this forum who recently got a Ryzen 1800X (stock speeds) pared with 1080 Ti SLI build so I asked him your questions.

1. Timespy score: 15456
2. Not come across any issues as of yet (Build is two weeks old).
3. Been a AMD user for years so can't comment.
   
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Agent-A01
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Videocard: 1080Ti H20
Processor: i7 5930K 4.7GHz H20
Mainboard: ASUS X99-AU31
Memory: G.Skill 32GB 3200C12
Soundcard: ASUS Phoebus
PSU: EVGA P2-1200W
Default 05-31-2017, 15:24 | posts: 9,610 | Location: USA

You won't get perfect scaling like you would compared to haswell/broadwell-e.

Example 1080p(i know not important) shows quite a gap in many games compared to OCd haswell-e/broadwell-e and adding a 2nd card will just exuberate that issue.
Maybe might be less of an issue at 4k, but there will certainly be an issue at 1440P

Some say it's due to NV drivers though, not sure.
   
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vase
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Default 05-31-2017, 18:25 | posts: 1,653 | Location: #1 http://www.3dmark.com/fs/8257155

Quote:
Originally Posted by BangTail View Post
So, I'm looking at AMD (and Intel) for my next build (not yet decided, need more info) but one thing I had heard that makes me apprehensive about AMD is that there are issues with SLI.

If any of you are using Ryzen with SLI, I would love to hear about your experiences.

1. Is the performance solid (scaling etc)?

2. Are there any issues (no matter how minor)?

3. If you were an Intel user previously, are you happy you switched?

I'm only interested in the objective opinions of those who own or have extensive hands on experience with Ryzen/SLI please.
Apart from the verbal assurances and/or irritations in forums - a good spot to get a feel for it is always this here:

https://www.youtube.com/user/XThiaiZ...view=0&sort=dd

https://www.youtube.com/watch?v=0JZ2RkFIbqQ

Many of the Crossfire/SLI owners who post such videos are very open to questions in the comment section and will gladly share their experiences.
Because they are proud of setting their stuff up and have it running in an optimal way.
   
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BangTail
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Videocard: EVGA GTX 1080Ti SLI
Processor: Intel i9 7900X
Mainboard: MSI X299 Gaming Pro AC
Memory: 64GB GSKILL DDR4 @ 2800
Soundcard: SB ZxR
PSU: EVGA SuperNova 1050W Gold
Default 05-31-2017, 18:28 | posts: 2,299 | Location: Canada

Thanks everyone
   
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Loophole35
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Videocard: EVGA 1080ti SC
Processor: 2600k@4.8 w/ NH-D15S
Mainboard: P8Z77-V
Memory: G-Skills ddr3 16GB@1866
Soundcard: SoundBlaster Z
PSU: TX850
Default 05-31-2017, 18:52 | posts: 8,427 | Location: FLA,USA

AMD's previous platforms had issues with feeding Crossfire as well. I have seen R7 feeding two RX580's without issues (at least no GPU load issues but there were frame pacing problems however that isn't Ryzen's fault). But I have no first hand experience.
   
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BangTail
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Videocard: EVGA GTX 1080Ti SLI
Processor: Intel i9 7900X
Mainboard: MSI X299 Gaming Pro AC
Memory: 64GB GSKILL DDR4 @ 2800
Soundcard: SB ZxR
PSU: EVGA SuperNova 1050W Gold
Default 05-31-2017, 19:07 | posts: 2,299 | Location: Canada

Quote:
Originally Posted by Loophole35 View Post
AMD's previous platforms had issues with feeding Crossfire as well. I have seen R7 feeding two RX580's without issues (at least no GPU load issues but there were frame pacing problems however that isn't Ryzen's fault). But I have no first hand experience.
Yah, it's looking like an Intel build for me this time round (at least for my main box), SLI can already be annoying enough without adding more issues to it.

I may toss a TR into my flightsim box though, still very interested in AMD CPUs at this point. Hopefully they can work the niggles with SLI out in fairly short order.
   
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Webhiker
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Videocard: EVGA GTX 1080 SC Gaming
Processor: AMD Ryzen 7 1800X
Mainboard: Asus Prime X370-PRO
Memory: 32 GB TridentZ DDR4-3200
Soundcard: Realtek® ALC1220
PSU: Zahlman ZM-1000HP
Default 06-01-2017, 00:36 | posts: 257 | Location: Aarhus, Denmark

Quote:
Originally Posted by Agent-A01 View Post
You won't get perfect scaling like you would compared to haswell/broadwell-e.

Example 1080p(i know not important) shows quite a gap in many games compared to OCd haswell-e/broadwell-e and adding a 2nd card will just exuberate that issue.
Maybe might be less of an issue at 4k, but there will certainly be an issue at 1440P

Some say it's due to NV drivers though, not sure.
What 1440p issues are you talking about ?
   
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