Penryn MacBook Pros: Performance Comparable, Battery Life Greater - MacRumors
Skip to Content

Penryn MacBook Pros: Performance Comparable, Battery Life Greater

Anandtech posts a lengthy review of the new Penryn-based MacBook Pros. Their review provides some objective data on the new laptops, as compared to the previous generation.

As described before, the biggest change in the new MacBook Pros is the use of a 45-nm Penryn CPU as opposed to the older 65-nm Merom CPU. Despite some differences in L2 cache, Anandtech found benchmark performance to be neck and neck:

Overall, the performance differential ends up being a wash - there are some cases where Penryn is faster at lower clock speeds, while others where Merom manages a win - much as we expected.

One measurable advantage of the new processors, however, is an extension of battery life, with improvements ranging from 7-15% longer than its predecessor, with an absolute increase in battery life of 37-67 minutes in their web browsing test.

It looks like Penryn is good for a 7 - 15% increase in battery life over similarly configured Merom systems. The improvement alone isn't enough to warrant an upgrade but it's a nice improvement over the previous systems given that you get it at no additional cost. Ah, the beauty of innovation.

Related Roundup: MacBook Pro

Popular Stories

iPhone Handoff Feature

iOS 27 Introduces New 'iPhone Handoff' Feature

Wednesday September 2, 2026 12:35 pm PDT by
Apple has added a new "iPhone Handoff" feature to iOS 27 that will allow you to switch between two iPhones while using the same phone number on each device. This functionality was briefly mentioned during the WWDC 2026 keynote in June, on a slide that listed hundreds of new features coming in iOS 27 and corresponding software updates, but Apple never shared any further details at the time. ...
Dynamic Island iPhone 18 Pro Feature

iPhone 18 Pro Prices Estimated Ahead of Apple Event Next Week

Thursday September 3, 2026 3:41 am PDT by
Less than a week before Apple debuts new iPhone 18 Pro models, research firm TrendForce has estimated the prices of the devices based on the latest hardware cost environment. TrendForce's price estimates compared to last year's models look like this: Model Starting Price Model Starting Price Change iPhone 17 Pro $1,099 iPhone 18 Pro $...
Apple Foldable Thumb

iPhone Ultra's Very High Price and Features Revealed in New Report

Thursday September 3, 2026 7:33 am PDT by
Ahead of Apple's event on Wednesday, September 9, where it is expected to unveil its first-ever foldable iPhone, Taiwanese research firm TrendForce today outlined the device's estimated price range, features, and some other key details. In the U.S., TrendForce estimated that the foldable iPhone will have a starting price of $2,099 to $2,299 and said the highest-end configurations could...