You can see it by comparing results on Passmark's website, for one.
It's because of a lot of things. Perhaps the i7 has more pipelines, but significantly it also has much shorter pipelines. Stalls were really, really expensive on the P4's 30-stage pipeline. Plus there's hyper-threading. And of course the i7's got a lot more going for it in the cache department.
It's because of a lot of things. Perhaps the i7 has more pipelines, but significantly it also has much shorter pipelines. Stalls were really, really expensive on the P4's 30-stage pipeline. Plus there's hyper-threading. And of course the i7's got a lot more going for it in the cache department.