Hacker News new | past | comments | ask | show | jobs | submit login

Unsurprising. I don't think the details of TSX have been revealed, but the implementation potentially has complex interactions with the cache subsystem: http://www.realworldtech.com/haswell-tm.

Given that TSX is one of the features that distinguishes some of the more expensive Haswell SKU's, is Intel going to issue a refund for affected customers?




I've been tempted recently by the Devil's Canyon repackaging of Haswell that for the first time has some of the workstation/server features (VT-d, TSX, but no ECC) enabled on an overclockable model. Losing TSX definitely cuts down on that temptation a bit, but they've still got the combination of full virtualization capabilities and much higher single-threaded performance than anything else out there.


Four cores is really not that attractive... also a lack of ECC with the amount of ram systems have today is starting to seem irresponsible. The probability of getting bitflips is macroscopic.


I understand that the 4790K isn't really a tradional workstation chip, but it's definitely the right thing for my workload which involves a simulation that's only partially multithreaded and would benefit a lot more from higher single-core speed than it would benefit from more than 4 cores. And ECC would be nice, but in my opinion isn't a hard requirement yet for all workstation usage the way it is for servers; I can certainly get by without it, since the base failure rate of the software I'm using is much larger than that caused by hardware memory corruption.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: