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Aorus Engine / MSI Afterburner give different overclock results with same settings on RTX 2080

 
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post #1 of 8 (permalink) Old 01-19-2019, 05:12 AM - Thread Starter
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Aorus Engine / MSI Afterburner give different overclock results with same settings on RTX 2080

Hi All,

As the thread title suggests, I've recently got a Gigabyte RTX 2080 OC Gaming card, and am seeing some weirdness when attempting to overclock.

Following gradual increases in both GPU and memory clock, I've found that I can get stable results with GPU clock at 1945 (+130), memory at +1600 MHz (or 800Mhz in MSI), power target at 108% and GPU voltage at +100%.

If I use these settings in Aorus Engine, then I'm seeing boost clocks of up to 2070Mhz, and it's very stable.
In the Port Royal benchmark, I got a score of 6440. See https://www.3dmark.com/pr/22651

If I use MSI Afterburner, with the exact same settings, then it's still stable but I'm seeing much lower boost clocks. The maximum is 1965MHz. With this combination, I'm getting 6163 in Port Royal. See https://www.3dmark.com/pr/22645
I'm at a loss to explain why two seemingly identical settings should give such different results.
In both cases, I've left the fan curves at default, and the card switches off it's fans at idle (again, it's default behaviour). With both tools, temperatures are pretty much identical. Never going over 63 degrees C.

If anyone has any thoughts on this, I'd really appreciate some pointers. I could just use Aorus Engine, but I prefer Afterburner, especially for the stats displays in game.

I've tried using the OC scanner on both tools, but neither gives such good results as the manual overclock. I see the same difference between the two tools if I use a scanner overclock. The Afterburner settings result in slower performance. I'm wondering if Gigabyte are doing something different with the voltage/clock speed curves, which the MSI tool isn't replicating?

Any help would be much appreciated.

Andy.
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post #2 of 8 (permalink) Old 01-19-2019, 05:19 AM
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Hi,
MSI af one really needs to use voltage curves otherwise it doesn't work well
You can compare the voltage graph and usually see it jumping like a bouncing ball in msi

The other probably has a similar feature like evga xoc has k-boost that keeps the card at max boost plus what clocks are added to it

MSI has similar too in setting to lock constant voltage plus unlock voltage so it will go to say +120%...

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post #3 of 8 (permalink) Old 01-24-2019, 09:09 AM
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I recently ordered, received, and installed an EVGA RTX 2080 FTW3 Ultra Hybrid Gaming (mouthful) GPU. I like using MSI Afterburner over EVGA's Precision software, mostly because it has better OSD functionality. Anyway, what I have noticed since installing the card and using MSI Afterburner is that it's treating core clock like memory clock, effectively doubling it. If I set an overclock of +50MHz on the core clock using MSI, it's effectively +100MHz. Alternatively, I used Precision X1 in which I had to enter +100MHz on the core clock to actually achieve the overclock speed. Not sure why this is. I upgraded from another EVGA card, which was the GTX 1080 FTW Hybrid. MSI behaved normally with that card. I've been searching Google and YouTube for possible reasons for this, but so far this thread is the closest I've come across.
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post #4 of 8 (permalink) Old 01-24-2019, 09:12 AM
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Have you tried the latest version of MSI AB with the OC Scanner?

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post #5 of 8 (permalink) Old 01-24-2019, 09:29 AM
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I do have the latest version of MSI AB installed, but I've hardly messed with OC scanner as I prefer to manually overclock. One other thing of note is that 3DMark keeps telling me I have a generic VGA adapter after each benchmark, and won't validate my score. Yet, 3DMark recognizes my card on the home screen. I freshly reinstalled the Nvidia drivers upon installing this card, and Windows recognizes that it's a RTX 2080. I know it's new architecture, but I still find it odd that tried and true software is having such a hard time with it.
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post #6 of 8 (permalink) Old 01-25-2019, 06:01 AM
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Quote: Originally Posted by ObscureEmpyre View Post
I do have the latest version of MSI AB installed, but I've hardly messed with OC scanner as I prefer to manually overclock. One other thing of note is that 3DMark keeps telling me I have a generic VGA adapter after each benchmark, and won't validate my score. Yet, 3DMark recognizes my card on the home screen. I freshly reinstalled the Nvidia drivers upon installing this card, and Windows recognizes that it's a RTX 2080. I know it's new architecture, but I still find it odd that tried and true software is having such a hard time with it.
How do you manually overclock? Just up the freq slider or do you use the voltage curve?

OC Scanner does the OC by mapping a freq to a voltage and even if it's not 100% stable under real world load, it gives a darn good starting point for your specific card (since each one is different, thanks silicon lottery). You can tweak the curve from there and end up with a nice stable OC. I have been really happy with it even on my Pascal cards. Found out I have a weak 1080Ti FTW3 that is actually outclocked by an 1080Ti SC Black. By weak I mean it won't do 2087MHz on the stock cooler, LOL!

But I digress. The 3DMark card ID issue is not normal. So, you are running fresh drivers, but did you use DDU to remove the previous install of driver before the reinstall? That issue seems like there's something lingering in the registry somewhere that DDU would clean up. I wish nvidia driver were more reliable. I've had issues just swapping card brands of the same GPU. Went from eVGA FTW3 to a Gigabyte Aorus and the drivers had fits even though they were both 1080Tis. DDU was the only thing that fixed this for me.

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post #7 of 8 (permalink) Old 01-25-2019, 06:21 AM
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Not all cards are perfectly compatible with MSI AB. If you have MSI or reference PCB or at least same controllers are reference PCB you're fine. If you have a custom board well then don't expect MSI AB to work perfectly with your card, it can be possible by default or with tweaked settings in AB but it is not guaranteed.
Sadly the OC tools from other manufacturers are not as good as MSI AB and they tend to be a bit buggy.

If you're getting low clocks from AB's settings, well then use higher offset no? Who said the offsets are same between various OC tools. It's live clocks and volts that matter, not that you typed in +100 in both tools.
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post #8 of 8 (permalink) Old 01-25-2019, 09:54 AM
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Quote: Originally Posted by JackCY View Post
Not all cards are perfectly compatible with MSI AB. If you have MSI or reference PCB or at least same controllers are reference PCB you're fine. If you have a custom board well then don't expect MSI AB to work perfectly with your card, it can be possible by default or with tweaked settings in AB but it is not guaranteed.
Sadly the OC tools from other manufacturers are not as good as MSI AB and they tend to be a bit buggy.

If you're getting low clocks from AB's settings, well then use higher offset no? Who said the offsets are same between various OC tools. It's live clocks and volts that matter, not that you typed in +100 in both tools.
Yup. You may have to add your card and the voltage controller to an .ini file. You can also submit your cards data to the RivaTuner dev and he will add it to the next update.

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