
First Intel Mac mini. Retained compact form factor but gained huge performance from Intel chip.
Quietly refreshed on February 28, 2006, just weeks after the Intel iMac and MacBook Pro debuts, the Intel-based Mac mini kept Apple's smallest desktop's charmingly compact aluminum-and-plastic enclosure unchanged while swapping in Intel Core Solo and Core Duo processors running at 1.5GHz and 1.66GHz respectively. It was a modest, almost understated entry in the Intel transition compared to the fanfare around the iMac and MacBook Pro, but it mattered for a specific reason: the low-end Core Solo variant made the Mac mini the most affordable way to get an Intel Mac onto a desk, appealing to budget-conscious switchers, students, and anyone wanting to try OS X for the first time using their existing PC monitor, keyboard, and mouse, exactly the BYODKM (bring your own display, keyboard, mouse) pitch Apple had used since the mini's 2005 debut. Performance gains over the outdated PowerPC G4 Mac mini were substantial, particularly for everyday tasks like web browsing, iLife applications, and general multitasking, even if the single-core Core Solo variant was clearly the weaker sibling next to the dual-core Core Duo model, a distinction savvy buyers quickly learned to shop around. Reviewers appreciated that Apple hadn't inflated the price during the architecture switch, keeping the mini firmly positioned as Apple's budget entry point, though some noted the integrated Intel GMA 950 graphics were adequate for everyday use but a clear step down from anything resembling gaming or serious graphics work, a persistent mini criticism across generations. It also quietly gained Front Row and a built-in IR receiver, hinting at the machine's secondary life as a compact home-theater PC, a niche use case that a dedicated enthusiast community embraced enthusiastically. In the sweep of Mac history, the Intel Mac mini is a minor but necessary chapter: it completed the consumer desktop half of the transition (following the iMac) while the mini's core value proposition, the cheapest possible clean route into the Mac ecosystem, remained completely intact. It set the template that later, more dramatically redesigned Mac minis (especially the aluminum unibody 2009 refresh) would build upon.
The 2006 Mac mini offered a choice between the single-core Core Solo and dual-core Core Duo, both members of Intel's Yonah family built on a 65nm process. The Core Solo was effectively a Core Duo with one core disabled, giving Apple an ultra-budget entry chip for its cheapest desktop. Against contemporary low-cost PC desktops running Celeron or budget Pentium chips, the Core Duo mini in particular offered surprisingly strong multitasking performance for its size and price. Neither variant supported 64-bit computing, a limitation that would define the ceiling of this machine's future OS compatibility.

2006
Launched running Tiger 10.4.5 built for Intel.

2007
Supported, though the integrated GMA 950 graphics limited some visual effects.

2009
Final supported release due to the 32-bit-only Yonah processors.
Seen as a welcome, fairly priced continuation of the Mac mini formula with the expected integrated-graphics caveats.
Apple didn't change the formula, just the engine, and the Intel Mac mini remains the cheapest, easiest gateway into Mac OS X.
The Core Solo model is noticeably weaker than the Core Duo; shoppers should spend the extra money if they can.
Tiny, quiet, and now genuinely fast enough for daily use, the mini remains a clever little machine.
Integrated graphics keep this firmly out of gaming territory, but as an everyday Intel Mac on a budget, it delivers.