I was under the impression
that the new buffer chips were needed to due the increased speed of the CPU
(and GPU) processing....but if the CPUs are slowed...it decreases the need for
the more advanced buffer chips (which Rambus and others are introducing) and
extends the life of the current generation (where Rambus doesn't have a very
competitive chip).
^^^^^^^
My
understanding is that memory module loading
(number of DRAMs, PC board capacitance, etc. - which directly impacts how fast
a memory module can be accessed), is the primary issue addressed with RDIMMs
and LRDIMMs. In other words, CPU’s/systems that need large amounts of external
memory (i.e. Servers, etc.,) will benefit from using RDIMMs or LRDIMMs because RDIMMs
and LRDIMMs help reduce memory module loading, whereby allowing for faster
clock rates (i.e. faster memory module access times).
In
regards to Spectre and Meltdown and the impact to CPU/system performance due to
software patches, it is my understanding the patches impact system performance not
because system clock rates will be reduced, but rather because system performance
will be impacted due to reduced (or restrictive) speculative execution and internal CPU caching.
In
other words, it is my understanding the Spectre and Meltdown fixes will not
impact system clock rates or external memory access speeds. If anything,
it may increase the demand for faster external memory access speeds because
the CPU will not be able to rely as much on speculative execution and Internal CPU caching for increased system performance.
Here
is an article which I think helps support my understanding.
https://www.csoonline.com/article/3247868/vulnerabilities/spectre-and-meltdown-explained-what-they-are-how-they-work-whats-at-risk.html