That is 192 EPYC cores though. The EPYC 9654 costs half as much as the A192-32x, has half as many cores, but still beats the Ampere in geometric mean of the phoronix suite.
I just looked it up - that is a mistaken statistic. 50% of their CPUs are not Arm, but AWS has 50% of all server-side Arm CPUs.
"But that total is beaten by just one company – Amazon – which has slightly above 50 percent of all Arm server CPUs in the world deployed in its Amazon Web Services (AWS) datacenters, said the analyst."[0]
In part that'll be because they mandated every service team migrate to ARM. Service teams had to have extensive justification to avoid it. With good reason, too, the reason for the effort was the significant cost savings.
And one presumes also gave them incredible leverage on negotiating future chip buys from AMD/Intel.
There must be so much fear of not getting their chips into AWS by now that I can only imagine they're selling near cost.
Not to mention no one pays AMD or Intel the Suggested Retail Price for those CPU. You could expect any larger order from DELL or M$ / Google to be 50% off those prices. Of course Amphere would offer some discount as well but when you put together and the performance the difference isn't as big as most claimed.
Is the estimate that it is cheaper based on comparable server with the same or similar core count?