PA-RISC clock speeds were relatively low for the time of their introduction. For example, the PA-8900 was launched in May 2005. The low end Athlon 64 of May 2005 was clocked at 2.2GHz (and eventually hit 3.2GHz) versus the PA-RISC top clock of 1.1GHz. You can always build a larger L1 cache in the same process tech if you're willing to sacrifice clock speed sufficiently.
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PA-RISC clock speeds were relatively low for the time of their introduction. For example, the PA-8900 was launched in May 2005. The low end Athlon 64 of May 2005 was clocked at 2.2GHz (and eventually hit 3.2GHz) versus the PA-RISC top clock of 1.1GHz. You can always build a larger L1 cache in the same process tech if you're willing to sacrifice clock speed sufficiently.