Voltage and gpu performance

[Nicbloub]

Hey everyone !
Im kind of digging a little bit around overclocking and i have a question.
Lets say we have 2 rtx 3060 of 2 different brands.
Both are at the same exact clocks and temps, but 1 of them has higher voltage.

Will the card with higher voltage perform better, even if the clocks are the same as the other ?
Does only clock speeds matter when comparing 2 identical gpus, even if they are of different brand ?
Thanks


PS. Im testing my gpu with heavenmark 4.0, but my monitor is only 1080p and its really not enough to stress my gpu.
Is there something better than heaven to stress test my gpu ?

[Bad 💀 Motha]

Try Unigine Superposition and 3DMark

[_I_]

if the clocks are the same, higher voltage will make more heat, it may have a better cooler or more aggressive fan profile to deal with it, or just higher temps

but could be as simple as the voltage being read incorrectly

either way, every cpu/gpu is different, and it may need higher voltage to hit the clocks, (lower binned gpu core)
the higher binned are higher tier gpu or oc/ti/s models

basic overclocking rules apply
more voltage = more heat + more stable

[Supafly]

You could have 2 of the exact same brand and model GPU that could work at different volts. Same as CPU. Volts are set to cover anything from the best silicon to the worse. I've the stock speeds, including boosts on undervolted GPUs and CPUs. Best CPU I've managed was by -0.140mv and GPU was set at 0.9

Try undervolting both whilst using the exact same max speed. The one that needs more volts to stay stable is the WORST. The best requires less volts for same performance and that means it'll overclock better where as the other will hit a temp wall because the more volts = higher temps.

[Bad 💀 Motha]

And if they both are same clocks but one runs stable at those clocks with a lower default voltage, this gpu with the lower voltage "might" have more OC potential since you most likely have the option to then raise the voltage if needed. Most GPU can OC further without any voltage changes though.

[Guydodge]

while your playing around remember your memory is running at least 10c hotter
(your playing with fire pun intended) if your keeping these cards for years too come
just leave the volts alone and up the MHZ to max then back down a few.JMO of
course.

[Bad 💀 Motha]

Yea I would always avoid upper your gpu voltage. On most gpus you can OC without the need to mess with Voltage

[Nicbloub]

Thanks for the replies guys.
I sohuld point out that i do not want to oc my hardware. Im just trying to learn about it.
I dont feel like my question has been asked tho.
Assume the temps are identical.
Assume the noise is identical.
Assume EVERYTHING is identical, except voltage.

Would the 2 gpu performs identically ?
Same clock, same temps, same fan, same everything except voltage.

[_I_]

voltage effects temps

if it really has a higher core voltage it will make more heat

if the clocks are the same they will have the same performance

[dOBER]

Ursprünglich geschrieben von Nicbloub:

Thanks for the replies guys.
I sohuld point out that i do not want to oc my hardware. Im just trying to learn about it.
I dont feel like my question has been asked tho.
Assume the temps are identical.
Assume the noise is identical.
Assume EVERYTHING is identical, except voltage.

Would the 2 gpu performs identically ?
Same clock, same temps, same fan, same everything except voltage.

Yes assume everything is identical they would perform the same.

Reality looks different because it cant be the same.
Higher voltage means more heat, means lower clockspeed. If both cards would run on exsact same clock the card which requires more voltage would need a higher fan profile to compensate higher temps.

[Nicbloub]

Ursprünglich geschrieben von dOBER:

Ursprünglich geschrieben von Nicbloub:

Thanks for the replies guys.
I sohuld point out that i do not want to oc my hardware. Im just trying to learn about it.
I dont feel like my question has been asked tho.
Assume the temps are identical.
Assume the noise is identical.
Assume EVERYTHING is identical, except voltage.

Would the 2 gpu performs identically ?
Same clock, same temps, same fan, same everything except voltage.

Yes assume everything is identical they would perform the same.

Reality looks different because it cant be the same.
Higher voltage means more heat, means lower clockspeed. If both cards would run on exsact same clock the card which requires more voltage would need a higher fan profile to compensate higher temps.

yeah i know about temps thats why this is a theorical question.
I mean, the higher voltage could be watercooled so in reality its even possible as a scenario.
But the bulk of the question was really if 2 identical products would perform the same with the same clock speeds (real load clock speed, not paper clock speed) but different volt.


So, theorically still, if i can lower my gpu or cpu voltage and keep the same clock, im in business right ?

[Bad 💀 Motha]

If they same exact base model (RTX 3060 for example) with same core and memory clocks and same amount of vram; both running side by side with same cpu on pcie 4.0 slot with pcie 4.0 cpu support; yes they should perform the same. All that higher voltage is doing is that probably because they are maybe from a different brand or branded model lineup (such as evga SC vs FTW for example) is that the higher voltage might have been needed to ensure stability for the chosen clock speeds. Whoever made the one with the same clocks and lower voltage, that one was juat luckily and maintaining overall stability without the need to raise the voltage.

At least going by all of the stock settings those two gpus have, if they are in fact all the same except for the one having a slightly higher voltage. You could try doing some test with the voltage manually lowered and see if it can remain stable still.

Overall, that higher voltage on any gpu doesn't do anything for performance it's the gpu core and memory specs and the pcie specs that mainly will result in your overall performance. The voltage is needed for overall clock stability.