Apple MacBook Air 13″ (M5) vs Apple PowerBook G4 (15-inch, 1.67/1.5GHz)

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

Better figure, where one is clearly better

MacBook Air 13″ (M5) compared with PowerBook G4 (15-inch, 1.67/1.5GHz)
AppleMacBook Air 13″ (M5)ApplePowerBook G4 (15-inch, 1.67/1.5GHz)
Overview
ReleasedMarch 2026February 2005
Display
Screen size13.6″15.2″
Resolution2560 × 1664 (better)1280 × 854
PanelIPS LCD–
Refresh rate60 Hz–
Brightness500 nits–
TouchscreenNoNo
Display typeLiquid Retina display; LED-backlit with IPS technology15.2-inch TFT widescreen; panel technology and refresh unpublished.
Pixel density224 ppi–
Colour rangeWide colour (P3); 1 billion colours–
Display featuresTrue Tone–
Performance
ProcessorApple M5PowerPC G4 1.5 GHz (PowerBook 15-inch Early 2005) or PowerPC G4 1.67 GHz (PowerBook 15-inch Early 2005)
CPU cores101
Graphics8-core GPU or 10-core GPUATI Mobility Radeon 9700 (64 MB DDR) or ATI Mobility Radeon 9700 (128 MB DDR)
Memory16 GB, 24 GB or 32 GB (better)512 MB or 2 GB
Storage512 GB to 4 TB (better)80 GB to 100 GB
CPU10-core CPU with 4 super cores and 6 efficiency cores1.5 or 1.67 GHz PowerPC G 4 with 512 KB on-chip L 2 and 167 MHz bus. Retained sheet processor paragraph omits 1.5 GHz, but factory configuration table and UK release confirm it. Exact silicon supplier omitted.
GPUNeural Accelerators; hardware-accelerated ray tracing; Media Engine with H.264, HEVC, ProRes and ProRes RAW acceleration and AV1 decodeATI Mobility Radeon 9700 with 64 MB DDR standard; 128 MB plus dual-link DVI build-to-order restricted to 1.67 GHz. UK release higher-base bullet ambiguously mentions dual-link with 64 MB; its BTO paragraph and full sheet tie dual-link to 128 MB.
AI engine16-core Neural Engine–
Memory typeUnified memory512 MB PC 2700 DDR 333 in a single SO-DIMM; two slots, maximum 2 GB.
Memory bandwidth153 GB/s–
Storage typeSSD, configurable up to 4 TB80 GB 5400 rpm Ultra ATA/100 standard on both processors; 100 GB build-to-order alternative, with Sudden Motion Sensor. Combo on 1.5 GHz base, 8× DVD±RW/CD-RW SuperDrive on 1.67 GHz; SuperDrive upgrade available.
CoolingFanless–
Battery and size
Battery life (maker's claim)Up to 18 hoursUp to 4.5 hours
Battery capacity53.8 Wh (better)50 Wh
Weight1.23 kg (better)2.5 kg
Thickness11.3 mm–
Width × depth304.1 × 215 mm–
Battery life detailUp to 15 hours wireless web; lithium-polymer battery50 Wh lithium-ion, up to 4.5 hours. Maker reference 2.5 kg includes battery and optical drive; varies by configuration/manufacturing. Published dimensions: height 2.8 cm, width 34.8 cm, depth 24.1 cm.
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 PD65 W power adapter
Fast chargingWith a 70 W or higher USB PD power source–
Materials100% recycled aluminium enclosure; 55% recycled content overallAluminium enclosure
ColoursSky Blue, Silver, Starlight, Midnight–
Connections
Ports2 × Thunderbolt 4, MagSafe 3, headphone jack2 × USB-A, Ethernet, headphone jack
Wi-FiWi-Fi 7AirPort Extreme 802.11g/b
Bluetooth62.0 + EDR
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 supportTwo USB 2.0 ports, one FireWire 400 and one FireWire 800, Gigabit Ethernet, 56K V.92 modem, Type I/II PC Card slot, DVI, S-video, audio input and headphone output.
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 displayDVI with VGA adapter and S-video/composite output; up to 2048×1536 external. Optional 128 MB dual-link configuration on 1.67 GHz supports 30-inch Cinema HD display.
KeyboardBacklit Magic Keyboard, 78 (ANSI) or 79 (ISO) keys including 12 full-height function keysFull-size illuminated fibre-optic keyboard with ambient light sensor on both processor configurations; Apple states up to ten times brighter backlighting than previous generation.
TrackpadForce Touch trackpadTwo-finger scrolling/panning, tap, double-tap and drag support
SpeakersFour-speaker sound system; Spatial Audio with Dolby AtmosStereo speakers with midrange-enhancing third speaker
MicrophonesThree-mic array with directional beamforming; Voice Isolation and Wide Spectrum modesInternal omnidirectional microphone
BiometricsTouch ID–
In the box13-inch MacBook Air, USB-C to MagSafe 3 Cable (2 m); power adapter sold separatelyApple announced 31 January 2005 with availability planned later that week. Ken Mingis’s 10 February Computerworld account confirms 15-inch units had reached buyers by then; February precision retained without a verified first shipping day. Launch Mac OS X 10.3 Panther and iLife ’05.

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