AMD原廠人士JF-AMD說的新增一個整數核心增加面積只有12% !!

原文連結↓↓
http://www.amdzone.com/phpbb3/viewt...p?f=52&t=137216

that our Bulldozer architecture will provide far greater performance gains than SMT with up to 80% greater expected throughput when running 2 threads simultaneously compared to a single thread running on a single integer core.

Our engineers estimate that the amount of discrete circuitry that is added to each Bulldozer module in order to allow for a second integer thread to run is ~12% at the core level, but because the integer cores are only a portion of the overall die space , the addition of the second integer core in each module only adds ~5% of circuitry to the total die. We believe this is an excellent balance of greater performance with a very small silicon cost.

CMT只增加12%的面積而效能(吞吐量throughput)提升近兩倍，遠比SMT有效率多了，每個線程有獨立的四組整數管線可以用，不像SMT要共用管線。

原來之前anandtech的50%消息純屬煙霧彈。就像之前R700謠言只有480SP結果一推出是800SP,R800未上市前傳聞是1200SP結果一推出是1600SP。