Intel Core Ultra 290K, 270K and 250K Plus spec leak: “Arrow Lake Refresh” with higher

[harlan4096]

Intel Core Ultra 9 290K Plus “Arrow Lake Refresh” CPU to feature 5.8 GHz TVB boost

The last breath for the LGA-1851 socket. 



Intel is now set to introduce its Arrow Lake Refresh next year, likely as a last push before moving to the LGA-1954 socket for Nova Lake. There is still no clear communication on the launch date for that successor. For now, Arrow Lake Refresh is shaping up as the final upgrade for the LGA-1851 platform.

The first Arrow Lake desktop series did not leave a strong impression with gamers. Intel even confirmed in its own slides that Arrow Lake can be slower than Raptor Lake in gaming, and later rolled out special boost features that pulled extra performance outside the original spec. Those tweaks helped, but required extra steps and were not part of the standard out-of-box profile.

With the refresh, Intel is baking some of these gains directly into the silicon and official specs. For the flagship, the change is tiny on paper. The Core Ultra 9 290K Plus keeps the 8P+16E configuration of the 285K but lifts Thermal Velocity Boost to 5.8 GHz, up from 5.7 GHz. E-core turbo also climbs to 4.8 GHz, while base clocks and power limits stay the same at 125W base and 250W max turbo.

Core Ultra 200K Plus (overview)

• Core Ultra 9 285K ➡️ 290K Plus: + 100 MHz P-Core (Max)
  
• Core Ultra 7 265K ➡️ 270K Plus: + 4 E-Cores
  
• Core Ultra 5 245K ➡️ 250K Plus: + 100 MHz P-Core (Max), + 4 E-Cores
  

The bigger changes sit in the Ultra 7 and Ultra 5 lines. The Ultra 7 270K Plus moves to an 8P+16E layout, matching the core count of the 9-series parts and giving the upper mid-range more E-core throughput than current Ultra 7 SKUs. Its top clocks reach 5.5 GHz Turbo Boost Max and 5.4 GHz P-core turbo, which lines it up close to the 265K but with more cores to feed.

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