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Intel Core i5-2500K 3.3GHz vs. AMD FX-8150 3.6GHz

Hello,
I always thought that higher frequency is better and more cores helps with media encoding, but from what I have heard the Intel Core i5-2500K 3.3GHz quad core is better than the AMD FX-8150 3.6GHz 8-Core at everything but media encoding.
http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/8
http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/7

My question is, why is the Bulldozer worse if it has a higher frequency?
4 answers Last reply Best Answer
More about intel core 2500k 3ghz 8150 6ghz
  1. The article you linked to explains why. You need to read the whole article not just compare the graphs. The last page at least.
    http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/11

    The SB architecture is much better than BD's.
  2. Best answer
    Tokamocha said:
    Hello,
    I always thought that higher frequency is better and more cores helps with media encoding, but from what I have heard the Intel Core i5-2500K 3.3GHz quad core is better than the AMD FX-8150 3.6GHz 8-Core at everything but media encoding.
    http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/8
    http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/7

    My question is, why is the Bulldozer worse if it has a higher frequency?

    You can not compare clock speed directly between two different architectures. Here is a side by side comparison http://www.anandtech.com/bench/Product/434?vs=288
  3. Tokamocha said:
    Hello,
    I always thought that higher frequency is better and more cores helps with media encoding, but from what I have heard the Intel Core i5-2500K 3.3GHz quad core is better than the AMD FX-8150 3.6GHz 8-Core at everything but media encoding.
    http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/8
    http://www.anandtech.com/show/4955/the-bulldozer-review-amd-fx8150-tested/7

    My question is, why is the Bulldozer worse if it has a higher frequency?


    Three reasons.
    1) Sandy bridge does more work per clock cycle.
    2) Bulldozer cores are not truly 8 independent cores, each pair shares resources which hurts in some types of workloads.
    3) A "K" chip can be overclocked. A 2500K will happily spend it's life at 4.5 or better.
  4. Best answer selected by Tokamocha.
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