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ROG Zephyrus G16 (2025) — Core Ultra 9 · RTX 5080 · 16″ OLED
ASUS

ROG Zephyrus G16 (2025)

Core Ultra 9 · RTX 5080 · 16″ OLED

93
/ 100
From $2,699
VS
Mac Studio M5 Ultra · 128GB wins by 5
Mac Studio M5 Ultra · 128GB — M5 Ultra · 128GB
Apple

Mac Studio M5 Ultra · 128GB

M5 Ultra · 128GB

98
/ 100
From $5,399
Specdex verdict

Mac Studio M5 Ultra · 128GB takes it — here’s why.

In our weighted Specdex score, ROG Zephyrus G16 (2025) lands at 93 and Mac Studio M5 Ultra · 128GB at 98. That puts Mac Studio M5 Ultra · 128GB ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.

Pick ROG Zephyrus G16 (2025) if…

  • Slim chassis for a 5080
  • OLED 240Hz panel
  • Strong thermals at 1.85 kg

Pick Mac Studio M5 Ultra · 128GB if…

  • M5 generation perf-per-watt leader
  • Larger unified memory ceiling
  • Improved ray-tracing iGPU
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Performance

Mac Studio M5 Ultra · 128GB

CPU + GPU muscle for demanding work

Mac Studio M5 Ultra · 128GB leads on cpu (98 vs 93).

Battery life

Mac Studio M5 Ultra · 128GB

Unplugged endurance for travel and campus

Mac Studio M5 Ultra · 128GB leads on battery (96 vs 78).

Portability

Tie

Weight, size, and carry-everywhere comfort

Effectively tied — neither pulls a 2-point weighted lead.

Display

ROG Zephyrus G16 (2025)

Panel quality for creative and media work

ROG Zephyrus G16 (2025) leads on display (95 vs 92).

Value for money

ROG Zephyrus G16 (2025)

Specdex score per dollar at MSRP

ROG Zephyrus G16 (2025) more score per dollar ($2,699 vs $5,399).

ROG Zephyrus G16 (2025) 93
vs
98 Mac Studio M5 Ultra · 128GB

Score breakdown

ROG Zephyrus G16 (2025)
93
cpu 93
gpu 95
display 95
battery 78
portability 90
Mac Studio M5 Ultra · 128GB
98
cpu 98
gpu 96
display 92
battery 96
portability 90

Specs side-by-side

ROG Zephyrus G16 (2025) versus Mac Studio M5 Ultra · 128GB — full spec comparison
Spec ROG Zephyrus G16 (2025) Mac Studio M5 Ultra · 128GB
CPU
Intel Core Ultra 9 285H
GPU
RTX 5080 Laptop (150W)
RAM
32 GB LPDDR5X-7500
128GB
Storage
2 TB PCIe 4.0 SSD
Display
16″ OLED, 2560×1600, 240Hz
Weight
1.85 kg
Battery
90 Wh
OS
Windows 11 Pro
macOS 16
Chip
M5 Ultra
Release year
2025

ROG Zephyrus G16 (2025)

Pros
  • +Slim chassis for a 5080
  • +OLED 240Hz panel
  • +Strong thermals at 1.85 kg
Cons
  • Battery limited in gaming
  • Speakers average
  • Fans ramp at max perf

Mac Studio M5 Ultra · 128GB

Pros
  • +M5 generation perf-per-watt leader
  • +Larger unified memory ceiling
  • +Improved ray-tracing iGPU
Cons
  • macOS-only
  • Memory non-upgradable
  • High-end configs expensive

FAQ: ROG Zephyrus G16 (2025) vs Mac Studio M5 Ultra · 128GB

Which is better, ROG Zephyrus G16 (2025) or Mac Studio M5 Ultra · 128GB? +

Mac Studio M5 Ultra · 128GB scores 98 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.

Is ROG Zephyrus G16 (2025) worth the price? +

At $2,699, ROG Zephyrus G16 (2025) delivers a Specdex score of 93 — strongest in gpu.

Is Mac Studio M5 Ultra · 128GB worth the price? +

At $5,399, Mac Studio M5 Ultra · 128GB delivers a Specdex score of 98 — strongest in cpu.

Does ROG Zephyrus G16 (2025) or Mac Studio M5 Ultra · 128GB last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is better for performance, ROG Zephyrus G16 (2025) or Mac Studio M5 Ultra · 128GB? +

Mac Studio M5 Ultra · 128GB — leads on cpu (98 vs 93). CPU + GPU muscle for demanding work.

Which is better for battery life, ROG Zephyrus G16 (2025) or Mac Studio M5 Ultra · 128GB? +

Mac Studio M5 Ultra · 128GB — leads on battery (96 vs 78). Unplugged endurance for travel and campus.