AMD expects to ship Barcelona chips by the middle of this year. In a meeting with internetnews.com this week, AMD officials emphasized several key differentiators over the Intel (Quote) quad-core server chip, the Xeon 5300, or Clovertown.
First, the Barcelona chip is a native quad-core design, not two dual cores glued together like the Xeon 5300, AMD officials claim.
The memory controller for Barcelona is built into the chip and not external, like the front-side bus design Intel uses, leading AMD to claim greater performance because the chip's four cores are not getting bottlenecked going through one gateway.
Despite the big gain in performance over the previous generation, Barcelona will have the same power consumption levels, with 95- and 68-watt designs.
So even though the wattage hasn't gone down, the increase in processing power turns into a 60 percent-per-watt performance gain, according to Randy Allen, vice president of the server and workstation division at AMD.
Allen said there's an 80 percent scale over dual core processors; AMD's own benchmarks put it well ahead of the Xeon 5300 in terms of performance.
"We took their best punch with Clovertown and this is our response," he said.
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