This dual-screen headset now offers options for dual 4K displays, as well as new GeForce RTX 30-Series GPUs and the latest AMD Ryzen processors. We asked Asus to show us around this unique Gaming Laptop.

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The ROG Zephyrus Duo 15 GX551Q SE gets an upgrade to overtake its predecessor in several ways.

First off, the 2021 ROG Zephyrus Duo 15 GX551Q SE (Special Edition) is built on AMD Ryzen 5000 hardware and Nvidia RTX 3000 graphics.

Retains the dual-screen design, but the 4K option has been replaced by the variant. faster 120Hz panel output with 8ms response, a better balanced option for professional use and gaming.

This dual-screen laptop that manages to maintain a slim chassis and plenty of power.

In addition Asus has revamped the design, the speakers and I / O are of the new generation, and they also plan to offer in a few different configurations, starting with more affordable models with mid-level specifications and in head of a Ryzen. 9 Version 5900H with 16 GB RTX 3080 graphics card, 48 GB of memory and SSD storage in RAID0 + dual 4K display.

Displays: 4K high refresh display options available 

 The main new addition to this refinement of the original is a 4K option on the main screen, which also has a refresh rate of 120Hz. Usually you sacrifice the refresh rate when you go for 4K resolution, but this premium system will offer the best of both worlds. If you're already gaming at a steep price for a gaming laptop, you might as well go big. The models will also be available with a 300 Hz Full HD (1080p) display, and both will use Adaptive Sync technology.

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 Design and novelties:

If you've never seen this concept in action before, you can drag any app or window to the second screen, so that everything you need is accessible anytime for a quick tap or reference. while you multitask.

A secondary screen is placed at the top of the keyboard, Asus calls it the ScreenPad. It's a 15-inch screen cut horizontally in half and tilted slightly to counterbalance the narrower viewing angle. A smart mechanical hinge design lifts this screen when you open the laptop and lift up the main screen and looks sturdy and reliable. Just be sure not to trap any cables between the two when closing the laptop.

This design allows the laptop to suck in cool air both from the top, behind this ScreenPad, and from the bottom, and expel it to the sides and back. Paired with the keyboard placed at the bottom, this Zephyrus Duo feels cooler to the touch than the standard laptop, and it runs cooler, especially now with AMD hardware.

The integration of this ScreenPad forced Asus to make the Zephyrus Duo deeper than the regular laptop and place the main screen completely at the end. Combined with the fact that you are also going to be pushing the laptop a bit further away from you in order to place your hands correctly on the keyboard, this means that the main screen of this laptop is about 20-25cm further back out of your eyes than on a standard laptop.

Regarding the choice of panels, Asus offers the
Zephyrus Duo with two types of ScreenPads (FHD and UHD, with touch and 100% sRGB) and two types of main screens: FHD 300 Hz 3ms with 100% sRGB and 300-nits of brightness and UHD 4K 120 Hz 8ms with 100% AdobeRGB and 400 nits of brightness.

The former targets gamers the more affordable option, while the latter offers a significant premium, but is a much better balanced option for professional use and most gamers, which should be fine with the refresh of 120 Hz and 8 ms response. Colors, contrast and brightness are also a step up on this panel. This will only be available on top level configurations. There is still no webcam on the Zephyrus Duo 2021.

About the IO. Some ports are on the back, but the power is on the right side, near the Escape and Tab key, so you'll always have that thick charging cable in your line of sight. Also, the USB-C slot is in a similar position on the right side, which means you'll end up with a cable interfering with your mouse area if you plan to connect it to an external monitor; There is the HDMI slot on the back.

Asus combined the mic and headphone jacks into one unit and added a microSD card reader. It might benefit some of you.

  The Duo was gray in color, with magnesium used for the main frame and aluminum for the cover. The choice of materials has not changed, but the Zephyrus Duo 2021 is now completely black.

The Zephyrus Duo has four speakers, with two main woofers still below, but two additional tweeters hidden between the hinges, below the main display.

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Hardware and performance:

The Zephyrus Duo 2021 is built on AMD processors and Nvidia RTX 3000 graphics, with a Rzyen 9 5900H 8C / 16T processor and an RTX 3080 GPU with 16GB of video RAM at the highest level. These are combined with up to 48 GB of DDR4 3200 MHz memory (16 GB onboard + 1 DIMM) and dual m.2 SSD storage.

Of course, Asus will offer the multitude of power profiles and customization options, increasing both the CPU and GPU to the highest end. The official literature also mentions some interesting aspects, such as the fact that liquid metal is applied to the AMD processor with this generation, which was not an easy task given the more complex design of AMD's chip with additional SMB capacitors, or the fact that Asus has been working on improving the quality and number of CPU / GPU VRMs in order to consistently deliver the right amount of power to components under sustained loads.

Regarding performance, Asus mentions that:

the processor can boost up to 90W on its own and operate up to 50W of sustained power when the dGPU is also active;
GPU runs at 1645 MHz and 115W on Turbo profiles with ROG Boost enabled, and can jump up to 130W of power from Dynamic Boost in certain games and loads, which transfers up to 15W of power from CPU to GPU.
As a side note, the MUX switch that allowed Optimus / GSyncs modes on the 2020 model has been replaced by Active Sync technology. In theory, this offers the best of both worlds and allows the system to seamlessly shuttle between iGPU and dGPU, impacting battery life with daily use and while hanging the battery. screen directly into the dGPU with games, reducing lag and tearing. 

Thermal design is important in this type of compact high power laptop.
Asus marketing materials mention fan noise reduction for 2021 ROG models, with a slight fan redesign intended to increase airflow while reducing turbulence and resonance. the noise. In addition, 0db technology is also new for this year, allowing the two fans with light loads to be completely switched to Quiet mode, as long as the CPU / GPU remains below certain temperatures.

The battery is still 90W and has not changed from the previous generation. However, the 2021 Duo now comes with a slightly larger, higher capacity 280W power supply. It also supports USB-C charging up to 100W.


Screen: 15.6 inch, non-touch, matte, 2 panel options:
FHD 300Hz 3ms response, 300-nits, 100% sRGB, Pantone validated
UHD 120Hz 8ms, 400-nits, 100% AdobeRGB, Pantone validated – AU Optronics AUOB394 panel+ secondary 14-inch, either UHD or FHD, IPS, non-glare, touch

Processor: up to AMD Cezanne Ryzen 9 5900H, 8C/16T

Video: Radeon Vega and Nvidia GeForce RTX 3080 Laptop 16GB (up to 130W Max-P, Overclocked) – Active Sync

Memory: up to 48 GB DDR4 3200 MHz (16 GB soldered, 1x DIMM)

Storage: 2x M.2 NVMe drives, with RAID 0/1

Connectivity: Wireless 6 AX, Bluetooth 5.0, Gigabit LAN

IO: 2x USB-A 3.1 gen2, 1x USB-A 3.2 gen1, 1x USB-C gen2 with data, DP 1.4 and PowerDelivery 3.0, HDMI 2.0b (??), LAN, microSD card reader, mic/earphone combo

Battery: 90 Wh, 280 W brick, USB-C charging up to 100W

Size: 360 mm or 14.17” (w) x 268 mm or 10.55 (d) x 21 mm or .82” (h)

Weight:  5.3 lbs (2.4 kg), .76 kg (1.72 lbs) power brick and cables, US version

Extras: per-key RGB keyboard, 14″ ScreenPad Plus, quad speakers

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