intels L1 cache

Discussion in 'Green Room' started by cabmustang, Jul 21, 2003.

  1. cabmustang

    cabmustang Guest

    does anyone know why intel's processors L1 cache is so small compared to amd's? intels is 8kb. and amd's is 128kb.
     
  2. Sazar

    Sazar F@H - Is it in you? Staff Member Political User Folding Team

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    it generally had more l2 cache to offset... also the marchitecture of the 2 is different... :) perhaps intel's cpu does not need vast amounts of l1 cache...

    overall ondie cache difference is not that great...
     
  3. Zedric

    Zedric NTFS Guru Folding Team

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    It's all about balancing the amount.
    Big cache => more cache hits => faster operation
    Small cache => less to look through => faster lookup

    Like Sazar said, it depends on the architecture what is good.
     
  4. jonifen

    jonifen pffff...

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    L2 cache is much faster than L1 cache anyway isnt it?
     
  5. Zedric

    Zedric NTFS Guru Folding Team

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    No.

    L1 is closest to the core and much faster. This is also why you want to keep it small, both due to complexity and cost. The L2 cache is the secondary cache and is much bigger. It makes sure most of the cache misses from L1 get a hit in L2 instead of in main memory.