I'm calling BS on this. The SB architecture is at least a year more advanced than BD. So a claim that "our chip is better" from AMD sounds like they cherry picked one benchmark.
Advanced Micro Devices has introduced its new single-socket server platform based on Bulldozer micro-architecture and aimed at cloud and hosting service providers. The new platform is projected to be affordable, yet power-efficient and support all the enterprise-class features. Initially, the new Opteron 3200-series family will include four- and eight-core options.
“In today’s economic environment, dedicated hosting providers need their data centers to become profit centers faster than ever. [...] Now they have all the benefits of a true server-class product at desktop-class price points. This helps rapidly-growing hosting customers achieve fast payback in their incredibly dense, power-efficient environments,” said Patrick Patla, corporate vice president and general manager of commercial business at AMD.
The AMD Opteron 3000-series platform is targeted to the dense, power efficient 1P web hosting/web server market. Available in either 4- or 8-core CPUs with 45W or 65W thermal design power, the AMD Opteron 3200-series processor (2.70GHz base frequency, 3.70GHz Turbo Core frequency) is shipping in platforms from MSI, Tyan, Fujitsu and Dell. The new chips support dual-channel DDR3 memory controllers supporting ECC UDIMM with 1333MHz, 1600MHz or 1866MHz memory speed.
Based on the “Bulldozer” core, the AMD Opteron 3000-series platform leverages Socket AM3+ and provides customers with the cost savings associated with a “desktop-like” infrastructure, yet still offers server-class reliability, enterprise-class silicon validation/testing, security features and server OS certification.
According to AMD, the new Opteron 3200-series delivers up to 38% better price performance and up to 19% less power per core than comparable Intel Xeon E3-1200L-series platforms.