Mac Pros May See Bus Speed Increase With Penryn - MacRumors
Skip to Content

Mac Pros May See Bus Speed Increase With Penryn

by

Intel's latest roadmap reportedly includes higher front side bus speeds for Penryn-based Xeons, according to DailyTech.

The site lists 3 processors slated to include a 1600 MHz front side bus, up from today's 1333 MHz front side bus, 2 of which are quad-core. The E5472 and E5462 are clocked at 3.0 GHz and 2.8 GHz respectively, and will feature Penryn's 12 MB L2 cache previously described.

Since transitioning to Intel, Apple has elected to put the highest-end Xeon 51xx ("Woodcrest") and 53xx ("Clovertown") series processors in its Mac Pro line. Quad-core Penryn-based Xeons will be using the 54xx numbering scheme, and are expected to be used by Apple.

Apple has also twice used unreleased processors in its products, so a Penryn based Xeon based on the new bus speed faster than 3.0 GHz should not be discounted at this time.

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

Popular Stories

Apple Event Logo

Apple Just Released a New Accessory

Monday May 4, 2026 8:13 am PDT by
Apple today released a new Pride Edition Sport Loop for the Apple Watch. The band features a rainbow design with 11 colors of woven nylon yarns. The new Pride Edition Sport Loop is available to order now on Apple.com and in the Apple Store app in 40mm, 42mm, and 46mm sizes, and it will be available at Apple Store locations starting later this week. In the U.S., the band costs $49. There...
Read Full Article
iOS 26

Apple Says iOS 26.5 Adds Three New Features to Your iPhone

Tuesday May 5, 2026 7:36 am PDT by
iOS 26.5 includes three new features for iPhones, according to Apple's release notes for the update, which is expected to be released next week. As discovered during beta testing, iOS 26.5 enables end-to-end encryption for RCS messaging between iOS and Android devices. Apple says this security upgrade is limited to supported carriers around the world and will continue to roll out....
Read Full Article • 27 comments
Instagram Feature 2

PSA: Instagram Encrypted Messaging Ends on Friday, May 8

Tuesday May 5, 2026 8:24 am PDT by
Instagram will remove end-to-end encryption for direct messages between users from May 8, 2026. When the date comes around, Meta will potentially be able to see the contents of all messages between users on the social media platform. Encrypting messages has been an optional feature in Instagram since 2023, but in March of this year the social media platform quietly updated a help page to say ...
Read Full Article • 54 comments