Apple's A12Z Under Rosetta Outperforms Microsoft's Native Arm-Based Surface Pro X - MacRumors
Skip to Content

Apple's A12Z Under Rosetta Outperforms Microsoft's Native Arm-Based Surface Pro X

Apple's Developer Transition Kit equipped with an A12Z iPad Pro chip began arriving in the hands of developers this morning to help them get their apps ready for Macs running Apple Silicon, and though forbidden, the first thing some developers did was benchmark the machine.

developertransitionkit
Multiple Geekbench results have indicated that the Developer Transition Kit, which is a Mac mini with an ‌iPad Pro‌ chip, features average single-core and multi-core scores of 811 and 2,871, respectively.

rosetta 2 benchmarks a12z mac mini
As developer Steve Troughton-Smith points out, the two-year-old A12Z in the ‌Mac mini‌ outperforms Microsoft's Arm-based Surface Pro X in Geekbench performance, running x86_64 code in emulation faster than the Surface Pro X can run an Arm version natively.


Averaging seven Geekbench 5 benchmarking results, Microsoft's Surface Pro X features a single-core score of 726 and a multi-core score of 2,831, meaning the A12Z outperforms the Surface Pro X in single-core testing and is on par or slightly better in multi-core performance.


The Surface Pro X features a Microsoft-designed 3GHz Arm processor based on the Qualcomm SQ1 chip.

Apple's DTK provided to developers is just a test machine using an older A12Z chip (it's the same as the A12X chip in the 2018 ‌iPad Pro‌ but with an extra GPU core unlocked). Apple's Arm-based Macs that run ‌Apple Silicon‌ will have new chips designed for the Mac and based on the A14 chip created for the 2020 iPhone lineup with a 5-nanometer process.

Apple says its ‌Apple Silicon‌ Macs will bring major improvements in performance and power efficiency, and the first Arm-based Mac is set to be released before the end of 2020.

Popular Stories

skyrim

Skyrim Comes to Apple Silicon Macs With New Unofficial Installer

Tuesday October 20, 2026 7:56 pm PDT by
Bethesda's beloved role-playing game "The Elder Scrolls V: Skyrim" has reached multiple generations of consoles since its 2011 debut, but it never officially came to the Mac. A new unofficial project called SkyrimMT now aims to make playing and modding it on Apple silicon Macs easier than ever. Mac owners have found ways to play Skyrim over the years, including installing Windows through...
Apple Creator Studio iWork suite

Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]

Thursday October 22, 2026 11:01 am PDT by
Apple has temporarily removed Keynote, Pages, and Numbers from the App Store, just after releasing an update that added iPhone Duo support and a new Intelligent Assistant. It is not clear if the apps were removed intentionally, or if it is a bug. Apple has not said when the apps will be reinstated, but if it was in error, they should return soon. Update: The Mac versions are back without...
iPhone Duo Trio

Here's What Apple's Apps Look Like on the iPhone Duo

Tuesday October 20, 2026 11:12 am PDT by
With just three days to go until the iPhone Duo is released, Apple is getting ready for the launch. Behind the scenes, the App Store now has screenshots of Apple's built-in apps running on the Duo. We've seen some apps in marketing materials, but images of the ones we haven't seen give us an idea of what it will be like using the iPhone Duo day to day. Many apps are shown in landscape...

Top Rated Comments

NickName99 Avatar
83 months ago
This is absolutely hilarious. It’s running a 2 year old iPad processor, underclocked, under emulation, with only half its cores running, and it beats the Surface running native code.

The A14 gen Apple processor enabled Macs are going to be absolute beasts.
Score: 62 Votes (Like | Disagree)
83 months ago

though forbidden, the first thing some developers did was benchmark the machine ('https://www.macrumors.com/2020/06/29/rosetta-2-benchmarks-a12z-mac-mini/')
Classic
Score: 37 Votes (Like | Disagree)
Rudy69 Avatar
83 months ago
But people in the last thread told me the score was bad? /s

Let's not forget this is and older chip too. This transition is super exciting! I really can't wait to see what they do in the bigger form factors like the MacPro
Score: 34 Votes (Like | Disagree)
UltimateSyn Avatar
83 months ago
So just imagine what the actual Mac processors are going to do... :eek:
Score: 33 Votes (Like | Disagree)
m4mario Avatar
83 months ago
I cant wait for Mac to be truly ahead in performance as they used to be before the transition to Intel. Intel chips kind of flattened the market.
Score: 27 Votes (Like | Disagree)
iReality85 Avatar
83 months ago
Apple: "Hey, we really don't want you to benchmark these machines." 😉

Devs: “Sure, no problem!” 😏

Everyone else: 😍
Score: 23 Votes (Like | Disagree)
Latest Stories
Apple Closes French Stores Ahead of Further Protests
Apple Closes French Stores Ahead of Further Protests
1 minute ago
Apple Pushes Back on DOJ Request for More Evidence
Apple Pushes Back on DOJ Request for More Evidence
50 minutes ago
The iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DS
The iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DS
5 hours ago
Using an Apple Pencil With the iPhone Duo: What to Know
Using an Apple Pencil With the iPhone Duo: What to Know
8 hours ago
Apple Store Pickup for iPhone Duo Starting to Resume But Very Limited
Apple Store Pickup for iPhone Duo Starting to Resume But Very Limited
9 hours ago
iPhone Duo Jailbroken on Launch Day
iPhone Duo Jailbroken on Launch Day
9 hours ago
Apple Seeds Updated watchOS 27.2 Release Candidate
Apple Seeds Updated watchOS 27.2 Release Candidate
9 hours ago
Apple Store in UK Reopens With New Design on iPhone Duo Launch Day
Apple Store in UK Reopens With New Design on iPhone Duo Launch Day
10 hours ago
Crackgate? iPhone Duo Owners Report Screens Breaking Along the Hinge
Crackgate? iPhone Duo Owners Report Screens Breaking Along the Hinge
11 hours ago
iPhone Duo Brings Back Long Lines at Apple Stores
iPhone Duo Brings Back Long Lines at Apple Stores
11 hours ago
The MacRumors Show: iPhone Duo Arrives, Touchscreen MacBooks Next
The MacRumors Show: iPhone Duo Arrives, Touchscreen MacBooks Next
13 hours ago
Apple Released iOS 27.1 for iPhone Duo Only
Apple Released iOS 27.1 for iPhone Duo Only
13 hours ago
iPhone Duo: Open Two Apps Side by Side and Lock Them As an App Pair
iPhone Duo: Open Two Apps Side by Side and Lock Them As an App Pair
13 hours ago
iPhone Duo Launches With Carrier and Accessory Discounts Available
iPhone Duo Launches With Carrier and Accessory Discounts Available
14 hours ago
Apple Music Has a Hidden iPod You Can Play With
Apple Music Has a Hidden iPod You Can Play With
15 hours ago
iPhone Duo Says 'Hello' to You Personally
iPhone Duo Says 'Hello' to You Personally
16 hours ago
iPhone Duo: How to Skip the Swipe Up After Touch ID
iPhone Duo: How to Skip the Swipe Up After Touch ID
16 hours ago
Where to Buy iPhone Duo Today: Stores, Pickup, and Wait Times
Where to Buy iPhone Duo Today: Stores, Pickup, and Wait Times
17 hours ago
MacBook Neo Helps Apple Outpace Rivals as Market Declines
MacBook Neo Helps Apple Outpace Rivals as Market Declines
21 hours ago
Happy 25th Anniversary, iPod
Happy 25th Anniversary, iPod
22 hours ago
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
1 day ago
iPhone Duo Launch Begins as First Orders Reach Customers
iPhone Duo Launch Begins as First Orders Reach Customers
1 day ago
1Password for Agents Keeps Your Passwords Hidden From AI
1Password for Agents Keeps Your Passwords Hidden From AI
1 day ago
iPhone Duo 24 Hours Later: Your Questions Answered
iPhone Duo 24 Hours Later: Your Questions Answered
1 day ago
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
1 day ago
Apple is Apparently Considering a Slightly Larger iPhone Duo
Apple is Apparently Considering a Slightly Larger iPhone Duo
1 day ago
Giant iPhone Duo Displays Coming to Four Apple Stores
Giant iPhone Duo Displays Coming to Four Apple Stores
1 day ago
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
1 day ago
Apple Updates More Apps With iPhone Duo Support
Apple Updates More Apps With iPhone Duo Support
1 day ago
Apple Will Label Apps 'Made for iPhone Duo' in App Store
Apple Will Label Apps 'Made for iPhone Duo' in App Store
2 days ago