edxwelch writes "In AMD's recient anti-trust lawsuit AMD have examined the Intel compiler and found that it deliberatly runs code slower when it detects that the processor is an AMD. "To achieve this, Intel designed the compiler to compile code along several alternate code paths. ... By design, the code paths were not created equally. If the program detects a "Genuine Intel" microprocessor, it executes a fully optimized code path and operates with the maximum efficiency. However, if the program detects an "Authentic AMD" microprocessor, it executes a different code path that will degrade the program's performance or cause it to crash.""
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