Besides the new manufacturing process we have already explained on our Details on Intel’s Forthcoming 45 nm Manufacturing Technology article, Penryn core updates Core microarchitecture, bringing some new features:

• Larger L2 memory cache (up to 6 MB for dual-core CPUs and up to 12 MB for quad-core CPUs).
• Split load caches.
• Faster buses (up to 1,600 MHz).
• New SSE4 instruction set (which brings 47 new SSE instructions to the CPU).
• Deep Power Down Technology (only on mobile CPUs).
• Enhanced Intel Dynamic Acceleration Technology (only on mobile CPUs).
• Fast Radix-16 Divider (FPU enhancement).
• Super Shuffle engine (FPU enhancement).
• Enhanced Virtualization Technology (between 25% and 75% performance improvement on virtual machine transition time).

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Figure 2: New microarchitecture enhancements brought with Penryn core.

On Figures 3 and 4 you can see a summary of the CPUs that will be launched for the mobile, desktop and server markets based on the new Penryn core.

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Figure 3: Mobile and desktop CPUs based on Penryn core.

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Figure 4: Server CPUs based on Penryn core.

Let’s now talk about some of the new features brought by the new Penryn core.