Software Engineer Runs Generative AI on 20-Year-Old PowerBook G4

In a blog post this week, software engineer Andrew Rossignol (my brother!) detailed how he managed to run generative AI on an old PowerBook G4.

PowerBook G4 LLM
While hardware requirements for large language models (LLMs) are typically high, this particular PowerBook G4 model from 2005 is equipped with a mere 1.5GHz PowerPC G4 processor and 1GB of RAM. Despite this 20-year-old hardware, my brother was able to achieve inference with Meta's LLM model Llama 2 on the laptop.

The experiment involved porting the open-source llama2.c project, and then accelerating performance with a PowerPC vector extension called AltiVec.

His full blog post offers more technical details about the project.

Similar examples of generative AI models running on the PlayStation 3, Xbox 360, and other old devices have surfaced in the news from time to time.

Popular Stories

iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods Pro 3

Thursday December 11, 2025 11:28 am PST by
Apple today released new firmware designed for the AirPods Pro 3 and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B30, up from 8B25, while the AirPods Pro 2 firmware is 8B28, up from 8B21. There's no word on what's include in the updated firmware, but the AirPods Pro 2 and AirPods Pro 3 are getting expanded support for Live Translation in the European Union in iOS...
iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
Google maps feaure

Google Maps Quietly Added This Long-Overdue Feature for Drivers

Wednesday December 10, 2025 2:52 am PST by
Google Maps on iOS quietly gained a new feature recently that automatically recognizes where you've parked your vehicle and saves the location for you. Announced on LinkedIn by Rio Akasaka, Google Maps' senior product manager, the new feature auto-detects your parked location even if you don't use the parking pin function, saves it for up to 48 hours, and then automatically removes it once...
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected [Updated]

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...
AirTag 2 Mock Feature

Apple AirTag 2: Four New Features Found in iOS 26 Code

Thursday December 11, 2025 10:31 am PST by
The AirTag 2 will include a handful of new features that will improve tracking capabilities, according to a new report from Macworld. The site says that it was able to access an internal build of iOS 26, which includes references to multiple unreleased products. Here's what's supposedly coming: An improved pairing process, though no details were provided. AirTag pairing is already...
iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
macOS Tahoe 26 Thumb

Apple Releases macOS Tahoe 26.2 With Edge Light

Friday December 12, 2025 10:08 am PST by
Apple today released macOS Tahoe 26.2, the second major update to the macOS Tahoe operating system that came out in September. macOS Tahoe 26.2 comes five weeks after Apple released macOS Tahoe 26.1. Mac users can download the macOS Tahoe update by using the Software Update section of System Settings. macOS Tahoe 26.2 includes Edge Light, a feature that illuminates your face with soft...

Top Rated Comments

sw1tcher Avatar
10 months ago

Properly optimized.... that's the ticket! So many people have demanded that Apple add in tons of RAM, but in doing so, developers get lazy and don't optimize, and then tons of RAM still isn't enough over time. I've appreciated Apple's conservative approach to RAM over the years, as it's forced optimizations, which is critical to software being great.
You've just given Apple a reason to reduce the Mac's standard memory from 16GB to 4GB.

Apple: "If gen AI can run on 1GB memory, image what it can do with 4GB memory (which is analogous to 8GB)!"
Score: 33 Votes (Like | Disagree)
coolfactor Avatar
10 months ago

Wow! That's impressive! I'm not a developer so don't really understand the specifics but it shows that there is still a lot of headroom with current tech if properly optimized!
Properly optimized.... that's the ticket! So many people have demanded that Apple add in tons of RAM, but in doing so, developers get lazy and don't optimize, and then tons of RAM still isn't enough over time. I've appreciated Apple's conservative approach to RAM over the years, as it's forced optimizations, which is critical to software being great.
Score: 31 Votes (Like | Disagree)
JTK Awesome Avatar
10 months ago

If you run Linux Mint on an old Mac, you really notice that macOS is actually quite bloated. They could have made the OS a lot lighter than they did.
MacOS, as well as iOS and iPadOS, are long overdue for a Snow Leopard-like update: 0 new features, just squash bugs and reduce system resources.
Score: 27 Votes (Like | Disagree)
stiligFox Avatar
10 months ago
Oh that's so cool!! I love PowerPC machines still. I have my PowerBook G3 Pismo still kicking around. I'll occasionally use it for writing projects or reminiscing about simpler times. Neat to see they're still keeping up with the latest trends *cough* ᶠᵃᵈˢ *cough*
Score: 21 Votes (Like | Disagree)
ResPublica Avatar
10 months ago

Properly optimized.... that's the ticket! So many people have demanded that Apple add in tons of RAM, but in doing so, developers get lazy and don't optimize, and then tons of RAM still isn't enough over time. I've appreciated Apple's conservative approach to RAM over the years, as it's forced optimizations, which is critical to software being great.
If you run Linux Mint on an old Mac, you really notice that macOS is actually quite bloated. They could have made the OS a lot lighter than they did.
Score: 14 Votes (Like | Disagree)
JoshuaBru Avatar
10 months ago
Quick someone show Tim Cool or is he too busy filming himself jumping out of an airplane for the next keynote?
Score: 12 Votes (Like | Disagree)