| Penryn Core New Features |
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| Penryn Core |
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).
 click to enlarge 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.
 click to enlarge Figure 3: Mobile and desktop CPUs based on Penryn core.
 click to enlarge Figure 4: Server CPUs based on Penryn core.
Let’s now talk about some of the new features brought by the new Penryn core.
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