Inteli-idiots & resident bashtards, Are you paying attention?
AMD promotional stuff:
The new AMD Opteron™ 6200 Series processor delivers the world's highest core density, lets users host more virtual machines per server, handle more database users and solve more complex HPC applications with fewer nodes and less power - offering a better option for the hyper-efficient, virtualized, cloud-ready world.
Performance for Data Centers
84% greater performance for HPC than the competition1 Up to 160% more cores2 to handle more VMs per platform and minimize datacenter space Low cost per VM lets you deploy fewer physical servers1 as business needs scale up
Scalability for Virtualization
73% more memory throughput3 to scale as your workloads grow
Economics for the Cloud
Unparalleled efficiency with 1/2 the power-per-core4 Requires 2/3 less floor space5 1/3 to 2/3 lower platform price6 ======================================== AMD Opteron 6200 & 4200 Series Animated Video
And the last place I would turn for credible relative performance data would be the manufacturer, whether that is Intel or AMD. But you AMD fan boys lap it up as if it were a puddle of pee from Jerry's spigot.
On the other hand, let's check out what the independent industry analysts are saying about the new Opterons: