PROFESSIONAL POWER EFFICIENCY ALERT： Rubin's chip level TDP increases up to 2，300W vs 1000-1400W for Blackwell. Supply chain rumors have indicated that there are 2 different "SKUs" with different power and performance profiles： a Max-P variant at 2，300W and a Max-Q variant at 1，800W. However， these are not distinct hardware SKUs but the 2 default power profiles that Nvidia is offering users based on their workload needs. Max-Q is what Nvidia believes offers the best performance per Watt. Max-P offers the greatest absolute performance though this would come with an efficiency penalty. Running the Max-P setting results in a 20% increase in rack power draw but the performance gain fall well short of this 20% power consumption increase. These power profiles are software managed. Users can also choose whatever max power draw they prefer （as long as it is no more than 2，300W per GPU） and this has been the case for previous GPU generations as well. Several hyperscalers and labs have chosen to run their GPUs at lower power to optimize for performance per Watt as well as taking into account power availability constraints.