Zotac RTX 3090 AMP Extreme Holo Review

For our temperature testing, we measure the peak GPU core temperature under load. A reading under load comes from running Cyberpunk 2077 for 30 minutes.

As for GPU thermals, here the AMP Extreme Holo does suffer a little. It's by no means bad, but the Amplify BIOS is running 10C hotter compared to the ASUS TUF (Performance BIOS), while the GPU edge temperature is also a little higher than the Gigabyte Eagle OC, though the hot spot is slightly cooler.

It would seem a lot of this has to do with the extra power that the AMP Extreme Holo has to deal with – remember, it has a 420W power target, compared to 350W for the other two RTX 3090s we have tested. That's an extra 20% power, resulting in added heat for the cooler to dissipate.

To test this theory, we dialled in a manual power limit of 84%, bringing power draw to as close to 350W as we could get it. Re-running our thermal tests with this new lower-power mode saw peak temperatures decrease significantly, with the GPU now running below 70C. Interestingly enough, GPU clock speed was only 80MHz slower too, which is not much at all despite losing 70W power draw.

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