I have plans to get 2nd generation cascade lake server, 6 channel with optane dimm, but with avx512 which uses a lot of bandwidth, ram speed will most likely be the bottleneck even with hexa channel (high core count CPU).
my question is, if I use optane dimm in junction with ram (optane storage mode, not using it as ram), would that lower ram performance since its all on same bus/connection? example, if I were to use a raid card with pcie 3.0 x8 connection that can exceed bus speed of 6.4GB/s I'd still get max of what 3.0 * 8 lanes can handle. but what about ram? all I see is the speed of ram but no where can I find what memory bus can actually provide.
would the bus be able to handle hexa channel ram running at full speed while also allow hexa channel optane storage at full speed, without cutting into each other's performance?
my question is, if I use optane dimm in junction with ram (optane storage mode, not using it as ram), would that lower ram performance since its all on same bus/connection? example, if I were to use a raid card with pcie 3.0 x8 connection that can exceed bus speed of 6.4GB/s I'd still get max of what 3.0 * 8 lanes can handle. but what about ram? all I see is the speed of ram but no where can I find what memory bus can actually provide.
would the bus be able to handle hexa channel ram running at full speed while also allow hexa channel optane storage at full speed, without cutting into each other's performance?
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