Details emerging about Intel's upcoming Nova Lake desktop processors, specifically concerning motherboard designs, strongly suggest a substantial increase in power consumption. Leaks indicate that the highest-tier Nova Lake CPUs could feature a maximum sustained boost power limit (PL2) of at least 474 Watts, a notable jump from the current 250W ceiling.
This significant power increase is inferred from the design of prototype Z990 motherboards, which reportedly feature three 8-pin CPU power connectors. Current high-end Intel motherboards, such as those for the Arrow Lake generation, typically utilize two 8-pin connectors to supply the necessary power to CPUs that already push the boundaries of the standard ATX connector's capabilities. The addition of a third connector on next-generation boards points to a much higher power draw requirement for the processors they are designed to support.
Each 8-pin EPS connector can theoretically deliver around 230W, though they can often handle more. A configuration with three such connectors would thus be capable of supplying substantially more power than the dual-connector setups found on current motherboards, aligning with the rumored 474W PL2 rating for some Nova Lake models.
These high power figures are primarily associated with the anticipated "dual compute tile" Nova Lake variants, which are expected to house a considerable number of cores, potentially up to 52. These processors are seen as a move to compete with AMD's offerings in the high-performance desktop and professional markets, particularly those with large L3 caches designed to bolster gaming performance. For comparison, the current Intel Core i9 14900K has a PL2 rating of 253W, though actual power draw can exceed this specification under heavy loads.
However, not all Nova Lake processors are expected to demand such extreme power levels. The more standard Core Ultra models, featuring a single compute tile, are likely to retain power limits similar to their Arrow Lake predecessors, with PL1 and PL2 ratings around 125W and 250W respectively. This tiered motherboard design, with some boards accommodating single-tile chips and others dual-tile, could offer consumers a more tailored purchase experience, allowing those who do not need extreme core counts to avoid paying for unnecessary motherboard features.
While the immense core counts of the dual-tile Nova Lake processors may not be fully utilized by current gaming titles, they position Intel to contend with AMD's high-end Ryzen and Threadripper lineups for professional workloads such as rendering and compilation. The increased power demands, however, underscore the evolving performance landscape and the engineering challenges associated with pushing CPU capabilities further.