Tech Report looked at a demo of the 6 core Istanbul Opteron. It is still set to arrive in H2 of this year.
The third demo was the most interesting for a couple of reasons. First, because it was intended to show how Istanbul can serve as a drop-in upgrade for Socket F systems. The only requirements: the system must support split power planes, and it must have a BIOS upgrade to operate with the new processors. Second, the demo was impressive because it included a performance test. Two otherwise-identical systems were situated side by side: one with a quartet of Shanghai Opterons, the other with four Istanbul chips. Both systems were running with HyperTransport 3 active—a capability coming soon to Shanghai Opterons but not yet available in current products. To illustrate the performance difference between the two boxes, the AMD tech ran a Stream benchmark. The 16-core Shanghai system produced throughput numbers in the range of 25,000 MB/s. The 24-core Istanbul box, by contrast, hit about 42,000 MB/s. The tech then swapped the processor-and-memory daughtercards between the two boxes, and of course, the performance characteristics moved with them...
Source: AMDZone
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