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Chips and Cheese has probably the most in depth publicly available dive for the tech reasons why Bulldozer was the way it was: https://chipsandcheese.com/2023/
by Macha 3y ago
Chips and Cheese has probably the most in depth publicly available dive for the tech reasons why Bulldozer was the way it was:
https://chipsandcheese.com/2023/01/22/bulldozer-amds-crash-modernization-frontend-and-execution-engine/ https://chipsandcheese.com/2023/01/22/bulldozer-amds-crash-m...
https://chipsandcheese.com/2023/01/24/bulldozer-amds-crash-modernization-caching-and-conclusion/ https://chipsandcheese.com/2023/01/24/bulldozer-amds-crash-m...
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From a consumer perspective, Bulldozer and revisions as compared to Skylake and revisions were:
+ comparable on highly multi-threaded loads
+ cheaper
- significantly behind on less multi-threaded loads
- had 1 set of FPUs per 2 cores, so workloads with lots of floating point calculations were also weaker
- Most intensive consumer software was single or a very small number of thread focused still (this was also a problem for Intel in trying to get people to buy more expensive i7s/i9s over i5s in those days)
- ColonelPhantom 3y agoBulldozer was contemporary with Sandy Bridge, not Skylake. Piledriver competed with Ivy Bridge and Haswell. The next Construction cores (Steamroller and Excavator) were only found in APUs, and not in desktop FX parts. Around the time of Skylake, AMD didn't have a meaningful presence in the desktop space. All they were selling was quad-core APUs based on minor revisions of Bulldozer, and the highly outdated FX-x3xx Piledrivers.