Effects of Backside Cache...

in Current Mac Hardware edited January 2014
Hi, I hope this doesn't sound too obvious, but what would be the performance difference between what I have now, an 867Mhz Quicksilver G4 with 2MB L3 cache, or a dual 1.25Ghz G4 with each processor having 1MB L3 cache. I'm thinking of upgrading my machine and just wanted to get an idea of the overall speed differences. Thanks


  • Reply 1 of 5
    1337_5l4xx0r1337_5l4xx0r Posts: 1,558member
    The 1.25 Ghz G4 will be faster at everything. Cache helps a processor achieve its potential by cramming it full of data much faster than main memory can.
  • Reply 2 of 5
    airslufairsluf Posts: 1,861member
  • Reply 3 of 5
    1337_5l4xx0r1337_5l4xx0r Posts: 1,558member
    Alright, smartass
  • Reply 4 of 5
    As I remember, the speed differance between a 1MB L3 and a 2MB L3 cache was about 5% in average (2 to 10% depanding of the app)

    If you put dual CPU instead of single G4, and increase the clock speed by 45%, I don't think a 5% loss because of the smaller cache will change something !
  • Reply 5 of 5
    algolalgol Posts: 833member
    wouldn't it be cool to have a 128MB cache!!!!!! Just for fun! hehe...lol ok never mind
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