Intel Spills Beans On Santa Rosa Notebook Platform
Steve Kerrison writes "From the Intel Developer Forum in Beijing comes news of the successor to the Napa notebook platform. Santa Rosa, which will head up Intel's notebook technology line-up until 2H 2008, beefs up almost everything seen in Napa, from graphics to WiFi. 'Santa Rosa carries Robson Technology, now known as Intel Turbo Memory, the flash-based disc-caching system that speeds up loading times of frequently-used data. Santa Rosa is an obvious continuation of the Centrino series. There will also be another Santa Rosa Centrino variant — Pro — that covers the business features found on Intel's Q-series chipsets, namely vPro.' Intel's Core2 mobile processors remain a key part of the platform, as you'd expect, with 45nm 'Penryn' CPUs making their way into the Santa Rosa refresh in 2008."
To clear things up- both SATA and PCIe employ 8b/10b encoding. Each byte is trasmitted as a 10 bit symbol. So 3.0Gb/sec = 300MB/sec.
First Gen SATA = 1.5Gb/sec = 150 MB/sec
Gen 2 SATA = 3.0Gb/sec = 300 MB/sec
First Gen PCIe = 2.5Gb/sec bidirectional per lane, so x1 = 250 MB/sec full duplex (marketing types sometimes say this is 500MB/sec)
Gen 2 PCIe = 5.0Gb/sec bidirectional per lane, x1 = 500 MB/sec full duplex.
I guess the big difference here is that PCIe is full duplex, SATA is not.
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