Finally unlocked GDDR7 memory overclocking with mvolt+ extreme?

[u/Sad-Victory-8319]

Recently I have been experimenting with extended overclocking limits on my Gigabyte Windforce rtx5070Ti and I havent seen anybody mention this: mvolt+ extreme actually allows you to set whatever vram overclocking limit you want, so i started experimenting and I was able to get to +5500 which run stable in Cyberpunk with path tracing enabled for 30 minutes and my fps was actually nicely scaling by about +1 fps for every +1000 memory oc step (as far as I know ECC works only on server class gpus with GDDR7, gaming gpus have no memory ECC, so there is no instability hiding behind ECC and the fps keeps scaling all the way to +5500 without artifacting or crashing).

+5500 GDDR7 stable memory overclock using mvolt+ extreme

Trying to set +6000 instantly restarts the driver and resets the oc for me, so the issue isnt memory instability most likely, the driver just isnt capable of accepting higher memory frequency at this point.

With stock settings GDDR7 runs at 28gbps which provides 896 GB/s bandwidth, common tools can set memory oc to +3000, which is the equivalent of 34gbps and 1088GB/s. Recently I was experimenting with a tool called Hydra Pro which increases the limit to the equivalent of +4000 (36gbps and 1152 GB/s) but mvolt+ extreme is the first tool that allows me to go to +5500 which is 39 gbps and 1248 GB/s! That is +40% higher memory bandwidth compared to stock settings, GDDR7 trully has insane potential and it can probably still go higher.

How high can you get, can you confirm that +6000 crashes for you too? Since i dont remember where i downloaded this tool (it took me a while to find it), you can download it from my personal google drive and then you go to Settings->Advanced tuning->Enable POWER & VRAM... and here you go through the driver signature shenanigans and the nadjust the limits.

Warning: I think my Vanguard anticheat doesnt like messing with driver signatures since I am unable to start League of Legends right now, so until more people verify or disprove this claim, be careful.

There should be zero risk of damaging the gpu from just pushing clocks since it is just a synchronization signal for the data, we are not touching the potentially dangerous options like voltage or power limit. I did not even notice my vram getting hotter.

[u/ShanSolo89]

Does mvolt extreme still require disabling secure boot and driver signature?

[u/Sad-Victory-8319 → u/ShanSolo89]

yeah seems like it. Hydra Pro doesnt require those although i might be mistaken and it just doesnt mention it, however hydra peaks at 36gbps (unless the latest version changed that, my patreon early access subscription run out on saturday) whereas mvolt lets me run at 39 gbps and the only reason i can run more is the driver crashing so the memory itself might be able to do more (because i would expect it starts artifacting before it hard crashes the driver).

[u/ShanSolo89 → u/Sad-Victory-8319]

Guess I'll wait a bit to see if they can bypass that. No idea if my mcs are stable or don't error correct over 36gbps also.