Apple MacBook Air 13″ (M5) vs Apple Macintosh PowerBook Duo 280

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

MacBook Air 13″ (M5) compared with Macintosh PowerBook Duo 280
AppleMacBook Air 13″ (M5)AppleMacintosh PowerBook Duo 280
Overview
ReleasedMarch 20261994
Display
Screen size13.6″9″
Resolution2560 × 1664 (better)640 × 400
PanelIPS LCD–
Refresh rate60 Hz–
Brightness500 nits–
TouchscreenNoNo
Display typeLiquid Retina display; LED-backlit with IPS technologyBacklit active-matrix TFT LCD with 16 grey levels; 640 × 400 pixels. The developer note specifies a CCFL backlight and 512 KB video memory
Pixel density224 ppi–
Colour rangeWide colour (P3); 1 billion colours–
Display featuresTrue Tone–
Performance
ProcessorApple M5Motorola 68LC040 66 MHz (PowerBook 540c)
CPU cores101
Graphics8-core GPU or 10-core GPU–
Memory16 GB, 24 GB or 32 GB (better)4 MB or 12 MB
Storage512 GB to 4 TB (better)240 MB
CPU10-core CPU with 4 super cores and 6 efficiency coresMotorola 68LC040 with integrated memory-management unit, 66 MHz internal clock and 33 MHz external bus. No FPU upgrade; the Duo Dock and Dock II floating-point coprocessors and Dock II external cache cannot be used by this processor
GPUNeural Accelerators; hardware-accelerated ray tracing; Media Engine with H.264, HEVC, ProRes and ProRes RAW acceleration and AV1 decode–
AI engine16-core Neural Engine–
Memory typeUnified memory4 MB on the logic board and one Duo memory-card slot; maximum 40 MB. An 8 MB expansion card gives the 12 MB configuration; higher capacities require third-party cards
Memory bandwidth153 GB/s–
Storage typeSSD, configurable up to 4 TBInternal 240 MB SCSI hard drive. The developer note also lists 200 MB configurations, whereas Apple's support summary specifies a minimum of 240 MB and the October 1994 catalogue lists 240 MB. Optional external SuperDrive floppy needs docking accessories
CoolingFanless–
Battery and size
Battery life (maker's claim)Up to 18 hoursUp to 4 hours
Battery capacity53.8 Wh–
Weight1.23 kg (better)1.9 kg
Thickness11.3 mm–
Width × depth304.1 × 215 mm–
Battery life detailUp to 15 hours wireless web; lithium-polymer batteryHigh-capacity Type II nickel-metal hydride battery with a maker typical-life claim of 2–4 hours in Apple Facts and Apple Directions. The later support summary lists Type III; the developer note identifies Type III as a separately available replacement
ChargerSold separately in the UK (30 W, 35 W dual-port or 70 W Apple USB-C adapters offered); needs at least 30 W over USB PD–
Fast chargingWith a 70 W or higher USB PD power source–
Materials100% recycled aluminium enclosure; 55% recycled content overall–
ColoursSky Blue, Silver, Starlight, Midnight–
Connections
Ports2 × Thunderbolt 4, MagSafe 3, headphone jack–
Wi-FiWi-Fi 7–
Bluetooth6–
Webcam12MP Center Stage–
Operating systemmacOSmacOS
Port detail2 × Thunderbolt 4 (USB-C) with charging, DisplayPort, Thunderbolt 4 and USB 4 (up to 40 Gb/s); MagSafe 3; 3.5 mm headphone jack with high-impedance headphone supportMini-DIN eight-pin serial/LocalTalk, 152-pin docking connector, power input and optional modem port. Most desktop expansion requires a Duo dock
External displaysUp to two at 6K 60 Hz or 4K 144 Hz, or one at up to 8K 60 Hz, 5K 120 Hz or 4K 240 Hz, alongside the built-in displayExternal display support through Duo Dock or Duo MiniDock; no built-in video connector
KeyboardBacklit Magic Keyboard, 78 (ANSI) or 79 (ISO) keys including 12 full-height function keysIntegral keyboard with trackball and palm rests
TrackpadForce Touch trackpadBuilt-in trackball
SpeakersFour-speaker sound system; Spatial Audio with Dolby Atmos8-bit monaural sound input and output with integral speaker, documented in the developer note
MicrophonesThree-mic array with directional beamforming; Voice Isolation and Wide Spectrum modesBuilt-in microphone in Apple Facts and the developer note, despite the support summary's Mic Type none
BiometricsTouch ID–
In the box13-inch MacBook Air, USB-C to MagSafe 3 Cable (2 m); power adapter sold separatelySystem 7.1.1 with PowerBook Duo Enabler 2.0; PowerBook Mobility Bundle preinstalled; power adapter included. Developer note lists the Express Modem with the 12 MB configuration; Apple support records introduction on 16 May 1994. Apple Directions July 1994 says the Duo 280 and 280c had begun shipping last month and were available immediately worldwide; issue dating does not establish a first-sale day. Headline retains confirmed retail-year precision. Apple Facts October 1994 lists this model as current

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