I don't have that but I have previous version.
I have this... I bought before 4-5 years, I found for very good price... I think that was time of X58 platform and look like construction is same only new have better details on side and LEDs on fan.
I still keep him in house. But with memory today fans are not necessary as before.
I only can say how much is well made that RAM fan in comparison with other companies who made similar.
He is noisy on full speed but if someone control over motherboard on 60% is silent.
CORSAIR made him from brushed aluminum and you can hear some metal sound when spin on full speed not as other fans.
I remember on some testing before 5 years it's was best memory fan, I mean most advanced, best build and best performance but most expensive as well.
He not cool only memory, help lot for VRM cooling on some motherboards and area around socket.
How much that could help with high overclocked system I'm not sure, but for some mid OC high end motherboards deal easy with temperatures of VRM and chips and Dominator Platinum heatsinks are not cold... Their temperature is probably similar to body because you don't feel cold or hot or warm, nothing... And if someone nicely build air tunnel with 120mm intake and 120mm exhaust and no hardware barriers they could influence on RAM temperature.