I am going to presume, for ARM to win any market share, they will have to offer a competitive advantage. ( Correct me if I am wrong )<p>So where does ARM&#x27;s Server Chip actually offer an Advantage?<p>Price - The CPU is only part of the Server&#x27;s Cost. When you look at the whole picture, The Memory, I&#x2F;O Controller &amp; SSD, Network, will all cost the same. The higher price of the memory and SSD  &#x2F; HDD, the lower total cost % of the CPU.
And once you lowered to a certain percentage, you want an incredibly cheap, Atom Server CPU is available for less then $50.<p>Performance - Even in the chance that any ARM&#x27;s Server CPU market manage to make a competitive CPU core against Xeon, which in itself is an incredible achievement, they will have to also compete against Intel&#x27;s world class ECC Memory Controller, Network Controller, and I&#x2F;O controller. All three are the main reason AMD CPU didn&#x27;t offer any competition even when they are much cheaper.<p>Power - This is similar to Price, once you factor in the memory and I&#x2F;O, CPU&#x27;s role is relatively small. And the power &#x2F; energy usage scenario on a server much flavor Intel&#x27;s rather then ARM.<p>So where does it offer a advantage? When you want a small baremetal server that is cheap, but in the world where VM is a common place, there is no reason why you cant have a small instance of it running on a much larger CPU. 
And even Intel admit it, none of their Server Customers, ( Read NONE ) wanted the Atom as they thought. It turns out everyone wanted Xeon-D, you pay a little premium for HUGE amount of flexibility. Intel wanted the Atom to disrupt itself rather then ARM, and it turns out it was the Xeon-D that did that.