NVIDIA GeForce RTX 4090 spotted with 3.2 GHz GPU and 25 Gbps memory overclocking

The RTX 4090 has previously been tested with maximum frequencies of 3.0 GHz and 3.1 GHz and with a TDP of up to 600W. However, the most recent screenshot from @wnxod seems to imply that the clock speed could potentially go much higher in certain situations, which unfortunately have not been released.

Before jumping to conclusions, remember that the 3.2GHz GPU frequency shown below may not be possible with all cards. The TDP settings and voltage-frequency curve are completely unknown to us. More importantly, we have no idea what workload was used. Such high clock speeds are common in CPU bound testing, such as low-resolution synthetic benchmarks.

The memory clock here is worth mentioning. Due to the clock speed of 1562.7 MHz, the effective memory speed is 25003 Mbps, an overclock of 4 Gbps that increases the maximum bandwidth from 1 TB/s to 1.2 TB/s. We’ll see if this affects the actual performance when the reviews go public next week.

Such a memory overclock would be even greater than that of the RTX 3090 Ti, which had the same default memory clock of 21 Gbps. As tested by TechPowerUP, the maximum RAM overclock on high-end custom samples was typically 1500MHz.

According to our interactions with reviewers, it’s fairly easy to break 3.0GHz on the RTX 4090 GPU, but 3.1 or even 3.2GHz can be unusual, especially on limited-power GPUs.

The key question is how often RTX 4090 cards reach such overclocking levels, and is this just an anomaly under extremely specific circumstances, or is this something hardcore overclockers would benefit from setting new world records? Those questions will most likely be answered on October 11, when the first RTX 4090 reviews are released.

Leave a Comment