ASUS ROG Zephyrus Duo (2026) GX651 vs Dell Pro Max 18 Plus
64.6Performancespec-based75.3
100Graphics97.1
58Displayspec-based38.4
79.4Batteryspec-based94.7
29.5Portabilityspec-based20
4 spec wins — ASUS ROG Zephyrus Duo (2026) GX6516 spec wins — Dell Pro Max 18 Plus
InnoReviews verdict
This one is close to a dead heat: ASUS ROG Zephyrus Duo (2026) GX651 scores 65.1 against 65.2 for Dell Pro Max 18 Plus. Pick by the categories that matter to you, or by price.
Which would you pick?
Key differences
Reasons to pick the ASUS ROG Zephyrus Duo (2026) GX651
- 120% higher Peak brightness: 1,100 nits vs 500 nits
- 37% lower thickness: 19.9 mm vs 31.7 mm
- 15% higher 3DMark Time Spy Graphics (GPU): 25,090 vs 21,744
- 13% lower weight: 2.82 kg vs 3.25 kg
Reasons to pick the Dell Pro Max 18 Plus
- 100% higher RAM: 128 GB vs 64 GB
- 20% higher Geekbench 6 (multi): 20,887 vs 17,405
- 13% higher Screen size: 18 ″ vs 16 ″
- 12% higher charging: 280 W vs 250 W
Display
| Spec | ASUS ROG Zephyrus Duo (2026) GX651 | Dell Pro Max 18 Plus |
|---|---|---|
| Screen size | 16 ″ | 18 ″+13% |
| Panel type | Dual OLED touchscreens (ROG Nebula HDR, DisplayHDR True Black 1000, 100% DCI-P3, G-Sync on main screen) | IPS (anti-glare, non-touch) |
| Resolution | 2880x1800 | 2560x1600 |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,100 nits+120% | 500 nits |
Performance
| Spec | ASUS ROG Zephyrus Duo (2026) GX651 | Dell Pro Max 18 Plus |
|---|---|---|
| Processor | Intel Core Ultra 9 386H | Intel Core Ultra 9 285HX |
| Graphics | NVIDIA GeForce RTX 5090 Laptop GPU (24GB GDDR7) | NVIDIA RTX PRO 5000 Blackwell Laptop (24GB GDDR7, 175W) |
| RAM | 64 GB | 128 GB+100% |
| RAM type | LPDDR5X-8533 (soldered) | DDR5-6400 (CAMM2) |
| Storage | 2,048 GB | 2,048 GB |
| Storage type | PCIe 5.0 NVMe M.2 SSD (2 slots, second slot PCIe 4.0 x4) | PCIe Gen5 NVMe SSD (2x 1TB, RAID 0) |
Benchmarks
| Spec | ASUS ROG Zephyrus Duo (2026) GX651 | Dell Pro Max 18 Plus |
|---|---|---|
| Geekbench 6 (single) | 2,913Top 31% | 3,024+4%Top 20% |
| Geekbench 6 (multi) | 17,405Top 22% | 20,887+20%Top 6% |
| 3DMark Time Spy Graphics (GPU) | 25,090+15%Top 1% | 21,744Top 19% |
Battery
| Spec | ASUS ROG Zephyrus Duo (2026) GX651 | Dell Pro Max 18 Plus |
|---|---|---|
| Capacity | 90 Wh | 96 Wh+7% |
| Web browsing endurance | 14.6 h | — |
| Charging | 250 W | 280 W+12% |
Design
| Spec | ASUS ROG Zephyrus Duo (2026) GX651 | Dell Pro Max 18 Plus |
|---|---|---|
| Weight | 2.82 kg+13% | 3.25 kg |
| Thickness | 19.9 mm+37% | 31.7 mm |
| Material | Aluminum alloy (CNC-machined) | Magnesium alloy (90% recycled magnesium top and bottom covers) |
Connectivity
| Spec | ASUS ROG Zephyrus Duo (2026) GX651 | Dell Pro Max 18 Plus |
|---|---|---|
| Ports | 2x Thunderbolt 4 Type-C (40Gbps, DisplayPort and power delivery), 2x USB 3.2 Gen 2 Type-A, 1x HDMI 2.1 FRL, UHS-II SD card reader, 3.5mm combo audio jack, DC-in, XG Mobile (GC34) connector | 2x Thunderbolt 5 (USB-C, 80Gbps, DisplayPort, Power Delivery), 1x Thunderbolt 4 (USB-C, 40Gbps, DisplayPort, Power Delivery), 2x USB 3.2 Gen 1 Type-A (one with PowerShare), HDMI 2.1, RJ45 2.5GbE, SD card reader, headset jack, optional smart card reader |
| Wi-Fi | Wi-Fi 7 (802.11be) | Wi-Fi 7 |
| Bluetooth | 6.0 | 5.4 |
| Webcam | FHD (1080p) with IR | 8MP HDR RGB+IR (1080p FHD HDR on base configurations) |
| Biometrics | IR camera for Windows Hello face login | Optional fingerprint reader (Windows Hello); optional 8MP RGB+IR camera |
Software
| Spec | ASUS ROG Zephyrus Duo (2026) GX651 | Dell Pro Max 18 Plus |
|---|---|---|
| Operating system | Windows 11 Home | Windows 11 Pro |
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