[baraka2905]

I started with core clock 2569 and memory clock 2000 on my rx6600xt. After OC, my results are CC: 2710 and MC 2290, which is quite average. I decided to "unlock" overclocking and edited the bios with the settings on this page, because I have no idea how to set the parameters for the bios to be one stable AMD’s Radeon RX 6600XT maximum overclock - with over 2.8 GHz into the TimeSpy best list | Practice | Update | igor'sLAB
Overlocking did not improve at all, maybe by 25mhz on the core clock. Does it make sense to play it? I would like to reach 3000mhz on the core clock but I do not know what settings to change and what in the case of overload?

 

[poah]

what did you set?

 

[Frosted racquet]

You're not going to get 3GHz on the core, that's for sure. Anything above 2900MHz core is a good OC. Memory needs to be tested if the scores go up with increased VRAM frequency, otherwise you're getting ECC corrections.

My settings are 2800/2900MHz limit on core, 1150mv core voltage, 2250MHz VRAM, 175W PPT

From my experience with MPT, increasing the PPT to 190W from 175W only slightly increases the scores in synthetic benchmarks, and if your cooling is insufficient you'll be throttling.
Tweaking the Infinity Cache frequency (FCLK) to 2000 had very very little improvement in scores.
If you're crashing on your VRAM OC you might want to try increasing the VDDCI voltage to 1.4v on DPM3.

When OCing the golden rule is to OC one thing at a time. Reset anything you did in MPT (delete SPPT), set the power limit +20% in drivers, try OCing the core first. Once you know your core is stable, increase the VRAM frequency by 50MHz and test each time in benchmark to see if the scores go up or down with frequency.

 

[baraka2905]

You're not going to get 3GHz on the core, that's for sure. Anything above 2900MHz core is a good OC. Memory needs to be tested if the scores go up with increased VRAM frequency, otherwise you're getting ECC corrections.

My settings are 2800/2900MHz limit on core, 1150mv core voltage, 2250MHz VRAM, 175W PPT

From my experience with MPT, increasing the PPT to 190W from 175W only slightly increases the scores in synthetic benchmarks, and if your cooling is insufficient you'll be throttling.
Tweaking the Infinity Cache frequency (FCLK) to 2000 had very very little improvement in scores.
If you're crashing on your VRAM OC you might want to try increasing the VDDCI voltage to 1.4v on DPM3.

When OCing the golden rule is to OC one thing at a time. Reset anything you did in MPT (delete SPPT), set the power limit +20% in drivers, try OCing the core first. Once you know your core is stable, increase the VRAM frequency by 50MHz and test each time in benchmark to see if the scores go up or down with frequency.

Where is the PPT option? Is it safe to interfere with FCLK? Currently my FCLK is 1980 and I don't know if there is any point in going any further. I have a more overclocked vram memory, but I have a fairly average core clock of 2720 / 2312. Does it make sense to play VDDCI higher than 1.4v? Temperature From DPM3 in msi afteburner is gpu temp 2? This is hottes point on gpu?

 

[baraka2905]

what did you set?

I set this settings from link

 

[Frosted racquet]

PPT is Power Limit in MPT. FCLK has very little influence on benchmarks. VDDCI shouldn't go above 1.4v just to be on the safe side for VRAM

 

[baraka2905]

PPT is Power Limit in MPT. FCLK has very little influence on benchmarks. VDDCI shouldn't go above 1.4v just to be on the safe side for VRAM

lol, your stock power limit on rx6600xt was 175w? My base stock powerlimit on card bios was only 135. I did not know that there is such a difference. What will increase the power limit give me and to what level would you increase it on air cooling?

 

[Frosted racquet]

lol, your stock power limit on rx6600xt was 175w? My base stock powerlimit on card bios was only 135.

No, 175W was with +20% override in drivers, so 140W in MPT. I've found that going above 175W has very little impact on performance, maybe 2% difference in benchmarks.

 

[baraka2905]

No, 175W was with +20% override in drivers, so 140W in MPT. I've found that going above 175W has very little impact on performance, maybe 2% difference in benchmarks.

My last question is what parameters would you pay attention to in MPT that can significantly increase performance and which are not available in msi afterburner?

 

[Frosted racquet]

Power Limit and VDDCI memory voltage for DP3 state could be beneficial to your OC, but it greatly depends on silicon lottery and your cooling.
If your card can cool down 190W there's no reason not to set 160W in MPT and then increase the power limit in drivers to +20% for total of 192W. It can slightly increase benchmark scores.
If your memory benefits from more voltage, and you can go from 2250 @1.35v to 2300+ @1.4v then increase VDDCI for a little more performance increase
FCLK has very little influence and can be ignored.

 

[baraka2905]

Power Limit and VDDCI memory voltage for DP3 state could be beneficial to your OC, but it greatly depends on silicon lottery and your cooling.
If your card can cool down 190W there's no reason not to set 160W in MPT and then increase the power limit in drivers to +20% for total of 192W. It can slightly increase benchmark scores.
If your memory benefits from more voltage, and you can go from 2250 @1.35v to 2300+ @1.4v then increase VDDCI for a little more performance increase
FCLK has very little influence and can be ignored.

appetite grows with food, so I wanted to ask you if if at rdr2 junction temperature is 93C whether it makes sense to go higher with Powerlimit in order to overclock the core clock more?
Is there any safe limit for the power limit? At the moment, I have 160 set in MPT and 20% on the msi afterburner. If the temperatures do not limit me, because I have heard that the temperature is 100C safe for me, can I go further? Can I get throttling after some time, because I increase the power limit itself without increasing the voltage that is blocked?

 

[Frosted racquet]

Junction temps up to 110°C are safe, after which the GPU will throttle the frequency. What's your current setting for GPU clocks and voltage?

 

[baraka2905]

Junction temps up to 110°C are safe, after which the GPU will throttle the frequency. What's your current setting for GPU clocks and voltage?

core clock 2750, memory 2312, fclk 2000 and 1150 voltage because it's max and I can't go up in the msi afterburner. I do not know if it is from the last windows but I have strange drops in far cry 6 in some places where I had 70 fps for example now I have 29 because using the card oscillates around 13%, but it is temporary and the fps returns to normal. Is it possible that tension is a limiting factor and there is throttling?

 

[Frosted racquet]

Try testing stock vs OC to see if there's FPS drops in Far Cry

 

[baraka2905]

Try testing stock vs OC to see if there's FPS drops in Far Cry

I will try. It is possible that the driver 22.10.1 is somehow buggy because it is finally optional. If more power tool is not the cause of the problem, can I keep trying to increase the power limit?
Of course, all temperatures must be normal

 

[baraka2905]

Try testing stock vs OC to see if there's FPS drops in Far Cry

Which gives the option TDC limits GFX, Soc. If I increase the power limit, do I have to change these values too?