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My guess would be branching behavior. The Intel branch predictor could be better for that sort of stuff.
by wyager 10y ago
My guess would be branching behavior. The Intel branch predictor could be better for that sort of stuff.
- tmd83 10y agoI was weird out by some of those figure too. I thought Ryzen floating point units were smaller than intel so how come its so better in the floating point benchmark. The SSE performance being so out there compared to anyone also looks very interesting. It could be the benchmarks are very focused on some particular kind of operation where Ryzen is very suited/unsuited for. Definitely need real app and more sophisticated benchmark. It looks to be a good processor probably miles ahead of Bulldozer in many department but what in terms of current gen intel in popular workload has to wait for March 2nd.
- Symmetry 10y agoThat might be true of the physics simulation but I think that's more likely Intel's better vector processing resources. With a prime search the branches involved ought to be a combination of the trivially easy ones that any predictor should be able to handle and the super high entropy ones that no predictor can guess. So if anything doing badly on the prime test is an indication that it was AMD's good branch predictor that was bumping up its score on the other tests.
- wyager 10y agoThe test also said that AMD beat out intel on SSE stuff.