Intel Announces 45-nm Penryn Processors - MacRumors
Skip to Content

Intel Announces 45-nm Penryn Processors

Intel released 16 of their new Penryn Core 2 Extreme and Xeon processors today. The new chips incorporate the new "Hi-k" metal gate formula and also incorporate a smaller 45-nanometer manufacturing process. These changes deliver faster and more energy-efficient processors.

While they did introduce a Core 2 Extreme Qx9750 quad-core processor with SSE4, our attention has focused on Intel's new Xeon processors, which makes up the bulk of Intel's announcements today.

New to the Intel line-up of server processors are 15 server dual-core and quad-core 45nm Hi-k Intel Xeon processors. The 12 new quad-core chips boast clock speeds ranging from 2GHz up to 3.20GHz, with front side bus speeds (FSB) up to 1600MHz, and cache sizes of 12MB. The three new dual-core chips feature clock speeds of up to 3.40GHz, an FSB of up to 1600MHz, and cache sizes of 6MB.

The new 5400 Xeon chips are compatible with existing Xeon platforms and sets a number of benchmark world records, according to Intel. More data is available at Intel's site.

Apple has been rumored to be buying up the high end 3.2GHz Penryn Xeon processors which feature a faster 1600MHz bus and 12MB of L2 cache for an upcoming Mac Pro revision. Apple currently uses the 5100 Xeon Woodcrest (Quad core Macs) or 5300 Xeon Clovertown (8-core Macs) processors.

Buyer's Guide: Mac Pro (Don't Buy)
Related Forum: Mac Pro

Popular Stories

Mac Pro Feature Teal

Apple Confirms Mac Pro Is Dead, No Future Models Planned

Thursday March 26, 2026 2:04 pm PDT by
Apple has discontinued the Mac Pro and has removed the machine from its website, reports 9to5Mac. Apple said it does not plan to design a new version of the Mac Pro, and no new model will be coming in the future. The Mac Pro was last updated in 2023, which was when Apple added an M2 Ultra Apple silicon chip, but the chassis has not been refreshed since 2019. Apple redesigned the Mac Pro to...
mac pro wheels

Apple's $700 Mac Pro Wheels Kit Discontinued Along With Mac Pro

Thursday March 26, 2026 3:24 pm PDT by
In addition to discontinuing the Mac Pro, Apple today discontinued the $700 wheel add-on kit that it sold for the Mac Pro. The Mac Pro Wheels kit was introduced in 2020, and allowed Mac Pro owners to add wheels to their machine after purchase. The Mac Pro could be bought with a wheel option for an additional $400, but the lower price was because opting for wheels removed the $300 feet....
Mac Pro Three Generations Feature

Mac Pro Discontinued: Reflecting on 20 Years of Apple's Desktop Tower

Friday March 27, 2026 7:39 am PDT by
Apple this week announced that it has discontinued the Mac Pro, with new configurations no longer available and no further models planned. Below, we reflect on nearly two decades of the Mac Pro. 2006 to 2013 In August 2006, Apple introduced the original Mac Pro, which was an Intel-based follow-up to the PowerPC-based Power Mac G5 that debuted a few years earlier. Mac Pro was the final ...