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> The problem of Bulldozer was that it only had slow cores. I don't think that was the case. Bulldozer shared the FPU and cache, and if I recall correctly it w
by rewmie 3y ago
> The problem of Bulldozer was that it only had slow cores.
I don't think that was the case. Bulldozer shared the FPU and cache, and if I recall correctly it was proven that the shared FPU was rarely a bottleneck because even in compute-intensive operations the number of FPU operations was relatively low.
- The_Colonel 3y agoThat's not what I was hinting at. Bulldozer was slower than its predecessor Phenom in single-threaded tasks where shared FPU/cache shouldn't have a detrimental effect. IIRC AMD made a trade-off to focus more on the multi-thread performance at the cost of single-thread performance (so basically more slower cores). But then many tasks are largely single-threaded and at that time the parallelization efforts were still very young.