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.