Intel Core Ultra 9 285K “Arrow Lake-S” Flagship CPU Rumored To Clock Up To 5.7 GHz & 5.4 GHz Across All P-Cores

Intel's Core Ultra 9 285K CPU, the flagship chip within the Arrow Lake-S Desktop lineup, is rumored to feature a boost clock of up to 5.7 GHz

Intel's Core Ultra 9 285K "Arrow Lake-S" Desktop CPU To Boost Up To 5.7 GHz

The news comes from the renowned leaker Raichu, who has disclosed the information in a rather "discrete" way. His post on X mentions "57/4 - 47/6" clocks for the top SKU within the Arrow Lake-S lineup; however, based on a clarification by the comment made by @Vectral555, it can be said that the Intel Core Ultra 9 285K is expected to feature 5.7 GHz max boost and 5.4 GHz all-core boost on the P-Cores. However, the "E-Cores" are expected to come with a max boost of 4.7 GHz and an all-core boost of 4.6 GHz.

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Earlier, we had reported a clock speed of up to 5.5 GHz in the ES chips and followed up with the 5.7 GHz clocks reported for the QS chips. Now, it looks like we have another source that is confirming a higher clock speed for the retail chips. With a 5.7 GHz clock, the Intel Core Ultra 9 285K should sit a tad bit behind the Core i9-14900K and Core i9-13900K but considering that this is a brand new CPU architecture and a new node (N3B as rumored), it's a good start for Intel and we can expect further clock speed bumps in refreshes which are already planned for the Arrow Lake lineup. Following is how the clock speeds compare against previous Core i9 releases:

• Core Ultra 9 285K - 5.70 GHz (Max)
• Core i9-14900KS - 6.20 GHz (Max)
• Core i9-14900K - 6.00 GHz (Max)
• Core i9-13900KS - 6.00 GHz (Max)
• Core i9-13900K - 5.80 GHz (Max)
• Core i9-12900KS - 5.50 GHz (Max)
• Core i9-12900K - 5.20 GHz (Max)

It's important to note that the clock speed disparity between the Arrow Lake-S and Raptor Lake CPUs isn't that high, considering that the Core i9-14900KS, which is the highest-end model in the Raptor Lake refresh series, comes with a