<h1>Intel Core Ultra CPUs: Comprehensive Linux Performance Review and Updates</h1>
<h2>Introduction</h2>
<p>Intel has recently launched its lineup of Core Ultra processors, which include the Core Ultra 5 245K, Core Ultra 7, and Core Ultra 9 285K. This article provides an in-depth performance review and key updates based on testing under Linux environments.</p>
<h2>Intel Core Ultra 5 245K Performance Review</h2>
<p>The Intel Core Ultra 5 245K, featuring 14 cores with 6 P cores and 8 E cores, has been tested on Ubuntu 24.04 LTS. It showcases a max turbo frequency of 5.2GHz for P cores and 4.6GHz for E cores. Notable specifications include:</p>
<ul>
<li><strong>Cache</strong>: 24MB Smart Cache</li>
<li><strong>Base Power</strong>: 125 Watt</li>
<li><strong>Graphics</strong>: Xe Graphics with 4 GPU cores</li>
<li><strong>Price</strong>: Around $309 USD</li>
</ul>
<p>Benchmarks were conducted using DDR5-6400 and DDR5-8000 memory. Despite some stability issues with the DDR5-8000 memory, the processor demonstrated solid performance. Future comparisons with AMD Ryzen and other Intel CPUs are anticipated.</p>
<h2>Intel Core Ultra 9 285K Linux Memory Performance</h2>
<p>Performance testing of the Intel Core Ultra 9 285K processor, which includes 24 cores (8 P cores and 16 E cores), has been carried out with various DDR5 memory configurations. The ASUS ROG MAXIMUS Z890 HERO motherboard’s 0806 BIOS update enhanced stability significantly. Vital specifications include:</p>
<ul>
<li><strong>Max Turbo Frequency</strong>: 5.7GHz for P cores</li>
<li><strong>Graphics</strong>: Xe Graphics with 4 GPU cores</li>
<li><strong>NPU</strong>: 13 TOPS</li>
<li><strong>Price</strong>: $589-$599 USD</li>
</ul>
<p>Initial issues with DDR5 memory were resolved with the BIOS update, confirming strong Linux support. This processor excels in productivity benchmarks but shows reduced frame rates in gaming compared to its predecessor, the Core i9-14900K.</p>
<h2>Intel Core Ultra 7 Lunar Lake Performance Improvements</h2>
<p>The Intel Core Ultra 7 ‘Lunar Lake’ processor experienced a significant 22% performance boost due to an ASUS Linux kernel patch. Tested on the ASUS Zenbook S 14, performance improvements were observed under standard mode. Although the Core Ultra 7 now outperforms the Core Ultra 7 155H Meteor Lake, it still trails behind AMD’s Strix Point in certain benchmarks. This performance uplift did result in increased power consumption.</p>
<h2>Linux Kernel Updates and Fixes</h2>
<p>The Linux 6.12-rc5 release includes several pertinent updates:</p>
<ul>
<li><strong>Disabling of Intel Linear Address Masking (LAM)</strong></li>
<li><strong>Performance fixes for ASUS Lunar Lake laptops</strong></li>
<li><strong>Adjustments to ‘Meltdown Lite’ mitigation for AMD Zen 5 CPUs</strong></li>
</ul>
<p>Additionally, the ASUS WMI fix was submitted to handle performance issues with Intel’s Lunar Lake on ASUS laptops, addressing initialization problems. This fix contributed to a performance boost of roughly 22%.</p>
<h2>Conclusion</h2>
<p>The recent Intel Core Ultra processors provide a mix of solid performance and occasional stability challenges under Linux. Updates such as BIOS fixes and kernel patches have been critical in optimizing their usability. Continued testing and comparisons will further elucidate these processors’ standing against competition, especially in productivity versus gaming performance.</p>


Collections

Intel's newly launched Core Ultra processors, including the Ultra 5 245K, Ultra 7 'Lunar Lake', and Ultra 9 285K, show strong performance and some stability challenges under Linux. Key highlights include varying core configurations, impressive max turbo frequencies, and the need for BIOS and kernel updates to resolve stability issues. The Ultra 7 received a notable performance boost due to an ASUS Linux kernel patch. Overall, these processors perform well in productivity tasks but have mixed results for gaming.

Significant Performance Boosts for Intel Core Ultra Series on Linux