MacBook Air: 1.8GHz SSD vs 1.6GHz HDD [Updated]

ArsTechnica compares the Solid State Drive (SSD) and Hard Disk Drive (HDD) versions of the MacBook Air to see if the SSD upgrade is worth the additional cost.

Their benchmark results are consistent with earlier benchmarks revealing that the SSD drive is slower at writing and sequential reads than the HDD. The SSD, however, is faster than the HDD at random (non-sequential) disk access.

This difference shows itself in "real world" tests such as Exporting a 60MB Quicktime, Compiling an Application or Unzipping an archive. As expected, the large file export, which performs a large sequential write to disk favored the HDD model. Meanwhile, building Webkit and Unzipping an archive showed off the speed advantage of the SSD.

Ars also looked at battery life of the MacBook Air and in their HDD review found that their Air averaged a paltry 2.5 hour battery life in their "real world tests". Questions of the validity of these results have been raised, with other anecdotal claims of battery life as long as 4-5 hours on the same configuration. Indeed, reports are varied:

Forums: 56% left after 2:15, 5+ hours?; Engadget: 2:25 watching movie, 3:35 light usage

Ars, however, is pretty confident in their battery life tests for their machine and felt it was consistent with some other reports. They found that the SSD didn't seem to offer a significant longer battery life (on average), however, their battery tests were not standardized and the SSD model had a faster processor. (Of note, MacLife found an SSD drive in a MacBook Pro brought a 14% battery life improvement.)

In the end, they felt the SSD upgrade was not worth the additional cost ($999), but noted the biggest advantage of the SSD was a lack of disk-access related slowdowns that they experienced on the HDD model.

Update: Several readers note that the SSD model had a 1.8GHz processor, rather than a 1.6GHz processor, so even equivalent battery life is likely an improvement. Also, another big advantage to SSD is durability -- with no chance of a hard drive "crash".

Related Roundup: MacBook Air
Related Forum: MacBook Air

Popular Stories

iOS 19 Mock WWDC25 Feature

iOS 19 Expected to Run on These iPhones

Monday March 31, 2025 5:28 pm PDT by
iOS 19 will not be available on the iPhone XR, iPhone XS, or the iPhone XS Max, according a private account on social media site X that has accurately provided information on device compatibility in the past. The iPhone XR, iPhone XS, and iPhone XS Max all have an A12 Bionic chip, so it looks like iOS 19 will discontinue support for that chip. All other iPhones that run iOS 18 are expected...
maxresdefault

Apple Releases iOS 18.4 With Priority Notifications, Ambient Music, New Emoji and More

Monday March 31, 2025 10:03 am PDT by
Apple today released iOS 18.4 and iPadOS 18.4, the fourth major updates to the iOS 18 and iPadOS 18 operating system updates that came out last year. iOS 18.4 and iPadOS 18.4 come two months after Apple released iOS 18.3 and iPadOS 18.3. Subscribe to the MacRumors YouTube channel for more videos. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to...
watchOS 11 Thumb 2 1

Apple Releases watchOS 11.4 With Sleep Alarm Update

Tuesday April 1, 2025 10:34 am PDT by
Apple today released watchOS 11.4, the fourth major update to the operating system that runs on the Apple Watch. watchOS 11.4 is compatible with the Apple Watch Series 6 and later, all Apple Watch Ultra models, and the Apple Watch SE 2. watchOS 11.4 can be downloaded on a connected iPhone by opening up the Apple Watch app and going to General > Software Update. To install the new software,...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods 4

Monday March 31, 2025 11:27 am PDT by
Apple today released new firmware updates for all AirPods 4 and AirPods Pro 2 models. The new firmware is version 7E93, up from the 7B21 firmware that was installed on the AirPods Pro 2 and the 7B20 firmware available on the AirPods 4 and AirPods 4 with ANC. It is not immediately clear what new features or changes are included in the new firmware, but we'll update this article should we find ...
iPhone 17 Pro 34ths Perspective

iPhone 17 Pro Launching Later This Year With These 10 New Features

Sunday March 23, 2025 10:00 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
macOS Sequoia Feature

Apple Releases macOS Sequoia 15.4 With Mail Categorization and More

Monday March 31, 2025 10:04 am PDT by
Apple today released macOS Sequoia 15.4, the fourth major update to the macOS Sequoia operating system that launched in September. macOS Sequoia 15.4 comes two months after the launch of macOS Sequoia 15.3. Mac users can download the ‌‌macOS Sequoia‌‌ update through the Software Update section of System Settings. It is available for free on all Macs able to run macOS 15. With...