Inno3D RTX 4090 X3 OC Review

We take our noise measurements with the sound meter positioned 1 foot from the graphics card. I measured the noise floor to be 32 dBA, thus anything above this level can be attributed to the graphics cards. The power supply is passive for the entire power output range we tested all graphics cards in, while all CPU and system fans were disabled. A reading under load comes from running Metro Exodus Enhanced Edition for 30 minutes.

Not only does the X3 OC run cooler than the Founders Edition, but it is quieter too. Default performance sees all three fans spin at 52%, or 1620rpm, producing 39 dBa of noise on my sound meter – a reduction of 2dB compared to Nvidia's own design. There was no noticeable coil while either, and no issues related to the pitch of the fans.

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