NVIDIA GeForce RTX 4090 Spotted With 3.2 GHz GPU and 25 Gbps Memory Overclock

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 appears to imply that the clock speed may be able to go much higher under certain situations, which, unfortunately, have not been released.

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


The memory clock here is worth pointing out. Because of the 1562.7 MHz clock rate, the effective memory speed is 25003 Mbps, a 4 Gbps overclock that raises the maximum bandwidth from 1 TB/s to 1.2 TB/s. We’ll find out whether this has an influence on real performance when the reviews go public next week.

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


According to our interactions with reviewers, it is reasonably simple to break 3.0 GHz on the RTX 4090 GPU, but 3.1 or even 3.2 GHz may be uncommon, especially on power-limited GPUs.


The key question is, how common are RTX 4090 cards to reach such overclocked levels, and is this just an aberration under extremely particular conditions, or is this something that hardcore overclockers would take advantage of when establishing new world records? Those queries will most likely be answered on October 11th, when the first RTX 4090 reviews will be released.