Question Unstable OC with a 5070 Ti @ Mem 1500/Core 350MHz ?

[Syxhen]

Hi everyone, I'm here to ask some help about OC my PNY 5070 Ti Epic-X OC since I managed to get a stable Mem Clock +1000MHz and Core +300MHz (with TempLim 110% to sustain at 330W max) and Steel Nomad Works.
After that I've tested some games and GoT, Cyberpunk etc. crashed after 5-10 minutes of gameplay.

I've tried to push the OC a little more at +1500/350MHz and then Steel Nomad crashed, games have black screen or got more errors etc.

How could I achieve a better, more stable result since even a little overclock seems to be unstable for the driver?

This GPU is awesome and has great capabilities to reach better results (since terms are good too) and someone get around 8000 score and better stability all around.
My custom GPU is even a good mid-top one, probably the best at MSRP, so why there are these problems?

The specs of my PC are in the IMG as third screenshot, to be more specific for further help.

Spoiler: Screenshots

 

[Aeacus]

and someone get around 8000 score and better stability all around.

That "someone" used Conductonaut Extreme and Thermal Putty Pro on the GPU.
Run results: https://www.3dmark.com/sn/7481431

Since else-ways, one can't get way too high core/memory clocks with mere 42C average during GPU bench.
That, and they have Gigabyte RTX 5070 Ti (most likely Aorus Master), with different (better) cooler and power delivery, compared your PNY GPU.

How could I achieve a better stable result since even a little overclock seems to be unstable for the driver?

Most likely, you can't. Unless you go with AIB version that has better PCB design (e.g power delivery), which is more stable and offers more OC headroom.

My custom GPU is even a good mid-top one

There is a difference between good mid-top and great top-end one. One of them is OC headroom.

Also, there is a reason, why your PNY GPU is $500 bucks cheaper compared to Gigabyte Aorus Master,
pcpp: https://pcpartpicker.com/products/compare/XsZWGX,HW4Pxr/

 

[LordVile]

Hi everyone, I'm here to ask some help about OC my PNY 5070 Ti Epic-X OC since I managed to get a stable Mem Clock +1000MHz and Core +300MHz (with TempLim 110% to sustain at 330W max) and Steel Nomad Works.
After that I've tested some games and GoT, Cyberpunk etc. crashed after 5-10 minutes of gameplay.

I've tried to boost the OC a little more at +1500/350MHz and ten Steel Nomad crashed, games have black screen or got more errors etc.

How could I achieve a better stable result since even a little overclock seems to be unstable for the driver?
This GPU is awesome and has great capabilities to reach better results (since terms are good too) and someone get around 8000 score and better stability all around.
My custom GPU is even a good mid-top one, probably the best at MSRP, so why there are these problems?

The hw of my PC are in the IMG as third screenshot, to be more specific for further help.

Spoiler: Screenshots

It's called the "Silicon Lottery". Your card is only guaranteed to meet the advertised spec. You likely can’t go any higher.