OCed my RX6600 and have some gpu behavioural questions.

[Deathcorner]

So i overclocked my Asus Radeon RX 6600 DUAL-RX6600-8G-V2 well into 3060 territory and have a few qeustions on how it preforms. I find it weird i don't get the max gpu clock i set in the oc. I see 2640~ in Baldur's Gate 3 and 2534 MHz average in timespy. Is it normal it's lower? The difference did explain why i had a crash in BG3 when i had the gpu clock set to 2770 MHz. With 2770MHz i was able to run timespy without a crash. Set it back to 2700 MHz after.

 

To give some info i followed this as a guide:

 

So i got max gpu clock at 2700 MHz and lowered the mV. Also set +20% powerlimit, gpu memory to fast timings but set it to the max 1900 MHz.

 

This is the benchmark with the above settings, score in timespy 8581  https://www.3dmark.com/spy/46812388

Was 7751 before i overclocked the GPU https://www.3dmark.com/spy/43905642

This is my build https://nl.pcpartpicker.com/b/WPHzK8

[-rascal-]

10 minutes ago, Deathcorner said:

So i overclocked my Asus Radeon RX 6600 DUAL-RX6600-8G-V2 well into 3060 territory and have a few qeustions on how it preforms. I find it weird i don't get the max gpu clock i set in the oc. I see 2640~ in Baldur's Gate 3 and 2534 MHz average in timespy. Is it normal it's lower? The difference did explain why i had a crash in BG3 when i had the gpu clock set to 2770 MHz. With 2770MHz i was able to run timespy without a crash. Set it back to 2700 MHz after.

 

To give some info i followed this as a guide:

 

So i got max gpu clock at 2700 MHz and lowered the mV. Also set +20% powerlimit, gpu memory to fast timings but set it to the max 1900 MHz.

 

This is the benchmark with the above settings, score in timespy 8581  https://www.3dmark.com/spy/46812388

Was 7751 before i overclocked the GPU https://www.3dmark.com/spy/43905642

This is my build https://nl.pcpartpicker.com/b/WPHzK8

 

What are the minimum and maximum ranges you set to?

If you set it to 2700 MHz for the maximum range, and you are getting ~2640 MHz, that's pretty good.

Those two values are essentially telling the GPU to boost in between those ranges -- it doesn't command the GPU to run at max value.

 

You probably need to dial the GPU Voltage up for ~2770 MHz.

Considering stock Boot is up to ~2491 MHz, ~200 MHz bump is pretty good.

 

Present day GPUs, both nVidia and AMD, will Auto-Boost itself as high as possible (within the range you set) if conditions allow.

The boost frequency will vary from application/game to another, just because how the GPU is utilized is different.

[Deathcorner]

9 minutes ago, -rascal- said:

 

What are the minimum and maximum ranges you set to?

Minimum is set to 2000 and max is 2700 atm with 1080mV. Ill try upping the voltage and see what that gets me. 

11 minutes ago, -rascal- said:

Present day GPUs, both nVidia and AMD, will Auto-Boost itself as high as possible (within the range you set) if conditions allow.

The boost frequency will vary from application/game to another, just because how the GPU is utilized is different.

That explains a lot.

[-rascal-]

34 minutes ago, Deathcorner said:

Minimum is set to 2000 and max is 2700 atm with 1080mV. Ill try upping the voltage and see what that gets me. 

That explains a lot.

 

That explains the wide frequency range; You can narrow down the range.

Set the minimum to 2500 or 2600, and set the maximum to 2700.

See how that goes.

[Deathcorner]

16 hours ago, -rascal- said:

 

That explains the wide frequency range; You can narrow down the range.

Set the minimum to 2500 or 2600, and set the maximum to 2700.

See how that goes.

Set the minimum to 2600 but i get 2530 MHz average in timespy. It's more than before, however the score didn't change. Still that's a average 250MHz uplift from the benchmark before the OC.

 

Think i'm gonna keep it the way it is now even if timespy acts funky, but i'm happy with the OC. Games run well. 

[-rascal-]

4 hours ago, Deathcorner said:

Set the minimum to 2600 but i get 2530 MHz average in timespy. It's more than before, however the score didn't change. Still that's a average 250MHz uplift from the benchmark before the OC.

 

Think i'm gonna keep it the way it is now even if timespy acts funky, but i'm happy with the OC. Games run well. 

 

I don't know of the drivers will detect Time Spy as a "power virus" or "benchmark tool" rather than a game.

If I remember correctly, it WILL recognize Furmark as a "power virus" and GPUs WILL NOT boost as high.

 

If you want to tweak it a bit more, you'll have to start monitoring with GPU-Z or HWiNFO, etc.

Monitor the GPU frequency, voltage, wattage, performance cap reason - GPU-Z has a 'PerfCap Reason' value. 

In this example, this GPU is hitting the Power Limit.

List of possible reasons:

Quote

vRel = Reliability. Indicating performance is limited by voltage reliability.
VOp = Operating. Indicating performance is limited by max operating voltage(Hardware Limit).
Pwr = Power. Indicating performance is limited by total power limit.
Thrm = Thermal. Indicating performance is limited by temperature limit.
Util = Utilization. Indicating performance is limited by GPU utilization.

[Deathcorner]

@-rascal-after some tinkering i found it best to keep 2600MHz min and 2700MHz gpu clock. 

 

Was able to push 2710MHz average in Horizon Zero Dawn benchmark but that was't stable in Baldur's Gate 3. Also it got the same fps with that OC as the previous. So i rolled it back.

 

Thanks for the help. It was fun to tinker with.