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Re:Micron Kicks Off Mass Production of 12 Gb DRAM Chips by jaxtellerSoA on Thursday November 08, 2018 @12:47PM (#18408139)
Then it also stands to reason that it makes business sense to switch from Intel Xeon to AMD Epyc.
Re:Micron Kicks Off Mass Production of 12 Gb DRAM Chips by derefr on Thursday November 08, 2018 @01:26PM (#18408532)
Yes, it might; though, unlike memory, a processor is more than just a frequency/feature size and a TDP. A processor also has specialty instructions which workloads may have been optimized for.

I would expect that right now, Google is 1. seeing to the re-engineering of certain math libraries they use internally for Google Search et al, and 2. like AWS, intending to create separate cloud-VM instance classes for Intel vs. AMD processors, where each workload type can “pay its own bills.” If AMD continues to dominate in server TDP, then I would expect this to lead to the AMD instance classes getting cheaper while the Intel classes remain the same; and so most customers switching to AMD instances, save for the customers who themselves have workloads optimized for Xeon-specific SIMD instructions.

Re:Micron Kicks Off Mass Production of 12 Gb DRAM Chips by chx on Thursday November 08, 2018 @01:38PM (#18408663)
Care to link to processor efficiency benchmarks underlining your statement?
Re:Micron Kicks Off Mass Production of 12 Gb DRAM Chips by cde-v on Thursday November 08, 2018 @02:14PM (#18409009)
Re:Micron Kicks Off Mass Production of 12 Gb DRAM Chips by toast0 on Thursday November 08, 2018 @05:06PM (#18410482)
That page is most assuredly not comparing apples to apples. The isn't noted at all, it's more of a comparison on peak power usage, which you could maybe use to plan cooling, and a comment on idle power usage.

But you would need to compare total watts for enough systems to get the throughput you need, which I suspect is not the same and is likely workload dependent.

For home use, where you are likely to only have a single system, you can directly compare idle usage, but for Google how many idle systems depends on your thrroughput needs --- and maybe Google can orchestrate shutdown / reuse of idle servers off-peak, so it might be moot.

Re:Micron Kicks Off Mass Production of 12 Gb DRAM Chips by jaxtellerSoA on Friday November 09, 2018 @10:13AM (#18414947)
Not bench marks, but Amazon is saying their new R5a and M5a running on Eypc will offer 10 percent savings on compute costs.

https://www.datacenterdynamics.com/news/amazon-web-services-...