Hacker News with Generative AI: CPU Performance

Speed or security? Speculative execution in Apple Silicon (eclecticlight.co)
Making a CPU do more work requires more than increasing its frequency, it needs removal of obstacles that can prevent it from making best use of those cycles. Among the most important of those is memory access. High-speed local caches, L1 and L2, can be a great help, but in the worst case fetching data from memory can still take hundreds of CPU core cycles, and that memory latency may then delay a running process.
Intel's Linux Performance Optimizations Continue Paying Off for AMD EPYC (phoronix.com)
As part of my end-of-year benchmarking and various historical comparisons, over the holidays I was curious to take a look at how the mature AMD EPYC 9004 "Genoa" performance has evolved over the past two years under Linux.
AMD Ryzen AI 300 Series Dominates Intel Core Ultra 7 Lunar Lake Performance (phoronix.com)
Earlier this week I delivered initial Intel Xe2 Lunar Lake graphics benchmarks on Linux while today the focus is on Lunar Lake's CPU performance.
AMD Ryzen 7000/8000 Series vs. 14th Gen Intel Core CPU Performance on Linux (phoronix.com)