I'm tempted to turn the Asus ROG Ally into an RTX 4090 PC using this Prime Day deal

Asus ROG XG Mobile with ROG Ally connected next to Prime Day deals badge
(Image credit: Future)

Prime Day just slashed the price of the wildest Asus ROG Ally add-on, ROG XG Mobile. Designed to provide the handheld with a more powerful external GPU, the docking station can practically turn the portable into a full-fledged system rather than a device for 1080p shenanigans. With Amazon’s sale chopping $300 off its original price, I think a few of you on-the-go players out there will want to check this one out, but perhaps not if you’ve just picked up the new ROG Ally X.

In a price cut that marks a new record low, this Prime Day Asus ROG Ally deal brings the ROG XG Mobile down to $1,699.99 from $1,999.99, which just so happens to be cheaper than full RTX 4090 graphics cards and gaming laptops with the same discrete GPU. That’s pretty spectacular considering you’ll be able to hit pretty high frame rates at 1440p and 4K even in the latest games, all while still using a Steam Deck rival that normally taps out at full HD. 

I’ve been watching Asus ROG XG Mobile pricing for a while now, and the ROG Ally dock usually only drops to the $1,900 mark. Weirdly, it somehow managed to jump all the way up to $2,100 back in February, which hammers home the fact that good discounts aren’t too common. So, I’m pretty delighted that Prime Day has knocked it down to a record low, even if it’s still admittedly an investment.

Prime Day's best Asus ROG Ally deals

Asus ROG XG Mobile (2023) | $1,999.99$1,699.99 at AmazonSave $300 -

Asus ROG XG Mobile (2023) | $1,999.99
$1,699.99 at Amazon

Save $300 - Down to its lowest price thanks to a 15% Prime Day discount, it's now even cheaper to add a powerful external GPU to your ROG Ally, which could in turn save you buying a new gaming PC or laptop.

Buy it if:

You better ROG Ally desktop performance
✅ You're using your ROG Ally with a monitor
✅You want a minimalist PC setup

Don't buy it if:

❌You've got a ROG Ally X
❌You already have a PC

Price check: Newegg $1,699.99 | Walmart (out of stock) 

Should you buy the ROG XG Mobile for Asus ROG Ally?

Asus ROG XG Mobile with red and grey backdrop

(Image credit: Asus)

Before I dive into why hooking the Asus ROG Ally up to a ROG XG Mobile, I have some bad news for anyone planning to buy a ROG Ally X. While the new model has beefier specs, and would naturally benefit more from having an RTX 4090 GPU at its disposal, it's actually incompatible with this add-on. That might be something that sways you on whether to buy the best gaming handheld contender or the OG from last year, as you'll ultimately be capped when it comes to enhancing desktop performance.

As for you lovely portable PC fans with an Asus ROG Ally to hand, the core reason for picking up an XG Mobile ties directly to docked performance. I recall many of my friends being excited about the prospect of Steam Deck docks boosting fps before Valve's handheld officially arrived, and this add-on actually makes that pipe dream a reality. Not only will you be able to tap into an RTX 4090 discrete GPU using a single cable, but you'll also add all the ports you'd normally find on a docking station, including DisplayPort, HDMI, and full-size USB ports. 

That said, it's worth reiterating that the Asus XG Mobile uses a discrete GPU, meaning it's not armed with a full-blown Nvidia GeForce RTX 4090. Don't get me wrong, you'll still see a massive performance jump compared to the AMD Ryzen Z1 Extreme within the handheld, as we're talking RTX 3090 Ti levels of oomph. Still, it's important to not let the green team's confusing naming conventions get your hopes up too much.

Asus ROG Ally with High on Life gameplay on screen

(Image credit: Future)

Ultimately, there are two types of players who should consider the Asus XG Mobile. The first is anyone with a ROG Ally who is thinking about getting a desktop rig, as this could honestly turn the handheld into exactly what you're looking for. The second is any of you eyeing up Prime Day gaming laptop deals with the intention of hitting high frame rates, as you might honestly benefit more from a handheld hybrid solution.

Of course, if you're planning on doing anything else other than trudging through your Steam backlog, you'll still want to swing by Prime Day laptop deals. I mean, I won't stop you from trying to do spreadsheets on the ROG Ally when traveling, but I can imagine it'll both look strange and result in some wonky-looking sheets.


Looking for more handheld offers? Swing by Prime Day Steam Deck deals for excellent accessories and add-ons. Alternatively, check out Prime Day TV deals and Prime Day monitor deals if you're looking for screen savings.

CATEGORIES
Phil Hayton
Hardware Editor

I’ve been messing around with PCs, video game consoles, and tech since before I could speak. Don’t get me wrong, I kickstarted my relationship with technology by jamming a Hot Wheels double-decker bus into my parent’s VCR, but we all have to start somewhere. I even somehow managed to become a walking, talking buyer’s guide at my teenage supermarket job, which helped me accept my career fate. So, rather than try to realise my musician dreams, or see out my University degree, I started running my own retro pop culture site and writing about video games and tech for the likes of TechRadar, The Daily Star, and the BBC before eventually ending up with a job covering graphics card shenanigans at PCGamesN. Now, I’m your friendly neighbourhood Hardware Editor at GamesRadar, and it’s my job to make sure you can kick butt in all your favourite games using the best gaming hardware, whether you’re a sucker for handhelds like the Steam Deck and Nintendo Switch or a hardcore gaming PC enthusiast.

Read more
Asus ROG Ally handheld on a wooden table
I've been mainlining the Asus ROG Ally for nearly two years now - I'd jump on this record-low price before it disappears
Asus ROG Ally on stand next to badge that reads "best deal"
Yes, I know the Lenovo Legion Go S just launched, but the Asus ROG Ally is still worth buying at its lowest price
Asus ROG Zephyrus G16 gaming laptop open on a wooden desk
Asus is leading the pack for slimline 16-inch gaming laptop deals this weekend
BenQ Steam Deck dock next to handheld on woodgrain desk
BenQ GR10 Steam Deck dock review: "I’ve waited years for this HDMI 2.1 docking station"
Alienware Aurora R16 PC sitting on black desk at an angle with blue RGB lights on
I wouldn't normally recommend an RTX 4090 PC this close to the RTX 5090 launch, but this Alienware PC deal is tempting
Asus ROG Flow Z13 tablet on a wooden desk with white controller
Asus ROG Flow Z13 (2025) review: "a true blend of power and portability"
Latest in Handhelds
Lenovo Legion Go S with FlyKnight gameplay on screen featuring player character holding bow and arrow with enemy ant in backdrop.
Lenovo Legion Go S Windows 11 review: “my heart aches for this mixed up handheld”
Lenovo Legion Go S with Xbox logo on screen next to white Series X controller on woodgrain surface
The rumored Xbox handheld isn't what you think, and I'm hoping it'll solve my Windows 11 problems
Mario & Luigi: Brothership trailer still
The end is nigh for the 3DS as Nintendo runs out of parts for 2 more models in Japan, with only 1 iteration still accepted for repairs
Photo by writer Rosalie Newcombe of their hand holding up the Atomic Purple Miyoo Mini Plus retro gaming handheld infront of a cabinet full of anime toys and figures.
I used to insist nothing beat the real deal, but now nothing beats curling up with Miyoo Mini Plus handheld and my favorite retro games
Asus ROG Ally on stand next to badge that reads "best deal"
Yes, I know the Lenovo Legion Go S just launched, but the Asus ROG Ally is still worth buying at its lowest price
Samsung TV with Nintendo Switch 2 teaser trailer on screen featuring Mario Kart gameplay
Should you upgrade your TV for the Switch 2?
Latest in Deals
Models printed using the Anycubic Photon Mono M7 Pro, on a wooden table
Save up to $200 on 3D printers perfect for making D&D minis and more
PDP Riffmaster hands-on image of the guitar's plastic body
The PS5 Riffmaster Guitar controller falls to its lowest-ever price, and I think I know why
Nature board game deals header image with rolling hills and a cloudy sky
Essential nature board games to round out your collection in time for Spring 2025
MTG Final Fantasy Bundle: Gift Edition and Limit Break Commander deck box on either side of a 'in stock' GamesRadar+ badge, all against a pink background
Where to buy MTG Final Fantasy products
Image of the Nintendo Switch box art for Princess Peach Showtime, Ys X Nordics, Unicorn Overlord and Super Mario Jamboree on a GamesRadar pink background.
Mario Day's colossal savings on these games is enough to make me forget about the Switch 2 for now
Gemma from Monster Hunter Wilds with glowing RX 7800 XT GPU next to hand
The RX 7800 XT is the only mid-range GPU at a remotely reasonable price right now, and it comes with Monster Hunter Wilds