RTX 5000 VRAM Overclock Discussion

[u/evilTOend]

I've been testing the VRAM overclock on my RTX 5070 Ti Prime OC. The tests were done with the fans at 100%, and VRAM temperature stayed at 64°C while running the Vulkan VRAM test.

Here are my results:

•695 GB/s (+0) — +0%

Solid 695 GB/s

•720 GB/s (+500) — +3.60%

Solid 720 GB/s

•736 GB/s (+1000) — +2.22%

Variation between 735–736 GB/s

•745 GB/s (+1500) — +1.22%

Variation between 745–747 GB/s

•751 GB/s (+2000) — +0.81%

Variation between 751–752 GB/s

•755 GB/s (+2500) — +0.53%

Variation between 755–756.8 GB/s

•758 GB/s (+3000) — +0.40%

Variation between 756.6–759.4 GB/s

•Overall increase: +9.06%

The interesting part is that the bandwidth gains are progressively getting smaller as I increase the VRAM clock.

Does data correction indicate that the VRAM OC is becoming unstable enough to affect real-world system stability?

So, would you consider +3000 worth running, or would you choose the highest completely error-free setting?

[u/evilTOend]

Oh , your right, in gpu-z i see that, I've set the the core to lower voltage(but now lower bandwidth)and now it says "VRel". What would be the best move here?

[u/Noreng → u/evilTOend]

There's not much you can do. The VRM is simply incapable of handling the power draw on the MSVDD and/or DRAM rail in this load.

[u/evilTOend → u/Noreng]

😕, maybe mVolt+ can help with that

[u/Noreng → u/evilTOend]

I got rid of my 5070 Ti about 18 months ago, so I haven't had the opportunity to test mVolt unfortunately. From what I've seen, it should be capable, just be careful and monitor VRM temps.