(2283 reviews)
The PC Ascent X3D is the perfect balance of raw power, cutting-edge technologies, and long-term reliability. A PC designed to perform today… and stay at the top tomorrow.
The Ascent X3D embodies the next-generation gaming PC for those who want to play without compromise. It pairs a GeForce RTX™ 5080 with the new Ryzen™ 7 9800X3D, delivering very high-level performance in both gaming and advanced multitasking.
Key points:
Extreme performance at 1440p ultra and 4K.
X3D processor optimized to maximise FPS in-game.
Perfectly suited for advanced multitasking and demanding creation.
Modern DDR5 platform for a durable and upgradable setup.
To avoid any damage during shipping, we remove the 5080/5090 graphics cards from the case; a 2-minute video tutorial is sent to you for a very simple reinstallation.
Fast shipping
Payment in 2, 3, 4, 10 or 12X.
2 years of statutory seller warranty.
Responsive after-sales service and available
Right of withdrawal of 14 days
General Terms and Conditions of Sale (GTC)?unique=abcf469)
Possible in 48h
Tested before shipping
Trustpilot verified
No fees
pre-installed operating system (trial version)
Every PC is carefully assembled and thoroughly tested before shipping
No need to configure anything—everything is ready to use
No stress, no tinkering. Just fun right away
Attention: the values below are provided as an indication only and may depend on your in-game settings.
Your PC tested before shipping
✓ Protocol completed · machine ready to be protected and shipped
Your PC tested before shipping
✓ Protocol completed · machine ready to be protected and shipped
4.2/5
+5,000 customers won over
Very positive reviews, despite comments about delivery time—no issues on my side: the screen was shipped the next day after my order, and the PC 3 days later.
Jeremy Q.I received my PC with a faulty graphics card, and the after-sales service from FlowUP was extremely efficient. They replaced my card the same day (big shout-out to Mickael, who was really great).
Lenny N.I invested in the BlackHawk and it’s pure bliss. With the Cooler Master MK770 keyboard and the MSI IMMERSE GH20 headset, it’s softer than my bed. And yet I love my bed—believe me!
The after-sales service is truly high quality. Replies and support are fast, with kindness, and there’s real human interaction.
Order received in 5 days (weekend included)
Very good condition, good price, and responsive and efficient after-sales service.
I recommend it.
Arnaud N.Honestly, it’s a great investment that I don’t regret. There’s an excellent after-sales service with quick responses and lots of kindness. Honestly, I recommend it without hesitation. Thank you for your work, team! Thank you 1000 times <3
Tristan X.I bought a custom PC on this site, and I was really well guided based on how I wanted to use it—but most of all, I got my money’s worth.
I contacted customer service (SAV) several times to get some answers; they were very responsive. I strongly recommend FlowUP for buying a PC.
PC ordered on Sunday, received 6 days later without any issues. Thanks to the FlowUP team. The PC is truly amazing—no problems at all.
Héléna B.Great contact: they communicated a new quote to me right away! The follow-up and the after-sales service (SAV) for picking up the PC on-site are exemplary. Thanks to you, Nathanaël, for your professionalism!
George Q.
Responsive, effective and friendly support service!
The information is clear and flexibility is highlighted.
I ordered my PC on Wednesday evening and received it on Saturday morning. Performance-wise, nothing to complain about. Excellent PC. The visuals look really good. Very good temperatures. Go for it with your eyes closed.
Samuel J.
Less than a week ago: super fast delivery and within the stated timeframe. PC well packaged, nothing to complain about. Thanks to the person who called me to ask if everything was okay. Thanks to the FlowUP team.
Manon Q.Responsive, effective and friendly support service!
The information is clear and flexibility is highlighted.
Very positive reviews
Very positive review, despite comments about delivery time—no issues on my side. The screen was dispatched the next day after my order, and the PC arrived 3 days later.
The PC works perfectly well and is well packaged for transport.
Date of the experience: 19 March 2026
Lucas Martin
a top team
A top team: I ordered 2 PCs, delivery in 1 week, and a team that listens. Delighted with my purchase—quality equipment. I recommend it 100%
Well done, team—you’re amazing
Date of the experience: 16 March 2026
Nathan Leroy
If you don’t know where to go, there’s FlowUP.
Pleasant staff, they check in with their customers. Secure delivery and very well protected; test before sending
and these are quality products
if you don’t know where to buy, go to FlowUP. You can call to have custom PCs made if you’re not familiar with it
Don’t hesitate to go there!
Date of the experience: 15 March 2026
Karim Bensalem
great 👍
Order received in 5 days (weekend included)
Very good condition, good price, and responsive and efficient after-sales service.
I recommend it.
Date of the experience: 27 February 2026
Léa Simon
EXCELLENT WELCOME
I would like to highlight the very positive work of Mr Cedric within the call centre and the welcome at Flow Up. He shows professionalism, courtesy and great availability towards the public.
He handles calls and reception efficiently, providing clear answers and directing people properly. His calm, respectful attitude and sense of service contribute to the smooth running of the service and to a good handling of the public.
Date of the experience: 25 February 2026
Anis Touati
great discovery …
I received my PC within a week via UPS. Perfectly packaged, protected in two boxes. No issues at startup and no problems since a week of use. Super happy!
Date of the experience: 19 February 2026
Lina Saadi
Flow up, it’s approved!
Excellent experience. The delivery time that was promised is met and the quality of customer support is top-notch. The arrangements requested were able to be handled without any issues. The PC I received perfectly meets the requirements and looks absolutely great.
Date of the experience: 15 February 2026
Maxime Lefebvre
I bought from Flow up.
I recently purchased a PC built by Flowup and the experience is flawless. The build is super clean (perfect cable management), the components are high quality, and the performance is exactly as advertised—if not better.
Special mention for the secure packaging: the PC arrived in perfect condition. I recommend it 100% for anyone who wants a serious setup without any hassle!Date of the experience: 13 February 2026
Walid Farah
FAST DELIVERY AND EXCELLENT PERFORMANCE.
I received my PC in exactly 9 days! (Order placed on 10 February and received on 19 February). I’d like to thank the Flow Up team for their speed and honesty.
About my PC: it’s the Savannah v2 with an RTX 5060 Ti and a Ryzen 7 5700x with 16GB RAM. It’s perfect for playing in 1440p at high/ultra quality on big triple-A games with 80/120 fps, and for esports at 240fps in low/high quality (depending on the games).
Date of the experience: 11 February 2026Amine Haddad
Find a selection of ultra high-quality peripherals: keyboards, mice, headsets, cameras, microphone arms, stream decks and more.
Unbeatable prices, gear approved by gamers, and even exclusives from our partner brands.
Everything you need to move on to the ultimate setup is right here.
No way you’re going to limit your setup with a mediocre screen.
We’ve selected the best gaming monitors on the market for you: from 180Hz to 390Hz, in Full HD, QHD or 4K, IPS, VA or QD-OLED panels.
Ready to step into another dimension?
Discover FlowUP optimisation, the optimisation service fully tailored to your needs.
In addition to top-tier after-sales service for your PC, you’ll also get a special Windows interface as well as exceptional performance
Your configuration in detail
Select a point to see which component is installed and to understand its role in your setup.
Tap a point to explore
Graphics card
Its role in the configuration
Your configuration in detail
Select a point to see which component is installed and to understand its role in your setup.
Tap a point to explore
Graphics card
Its role in the configuration
The NVIDIA GeForce RTX 5080 pushes the limits of gaming with its Blackwell architecture, delivering performance up to 2x higher than the previous generation*.
Equipped with 16 GB of GDDR7, it delivers ultra-smooth rendering in 4K and beyond, even with ray tracing enabled. Its DLSS 4 boosts FPS thanks to AI, while its optimised energy efficiency ensures controlled cooling.
A graphics card built for the most demanding gamers and creators!
(With DLSS4 and multi frame generation)*
At FlowUP, it all starts with a simple observation: too many PCs are poorly built, overpriced, or not supported properly.
So we decided to do the opposite:
Ready to play without compromise?
Our custom gaming PC build service lets you:
✅
✅
✅
Tailored to your needs
Configure your gaming PC: choose the components and our team of experts will take care of the assembly with care for optimal performance from the very first boot of your gaming PC!
I want a quote!
amd ryzen 5 5600
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
70 FPS
50 FPS
Compatible AM5 socket, it supports DDR5 and PCIe 5.0, delivering high speeds with next-generation graphics cards and SSDs. Its balance of a massive cache, high frequency, and energy efficiency makes it a premium choice to avoid any CPU bottleneck.
👉 A processor optimised for maximum, stable and long-lasting gaming performance.
Memory :
Storage :
PCIe ports :
Audio :
Network connectivity :
USB :
Configure your gaming PC: choose the components and our team of experts will take care of the assembly with care for optimal performance from the very first boot of your gaming PC!
I want a quote!
amd ryzen 5 5600
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
1080p
Note: the values below are indicative and may depend on your in-game settings.
At FlowUP, we don’t just sell PCs.
We forge war machines for players who want to dominate without lag, without compromise.
Hand-tested builds, quality components, stylish design, and a team that speaks your language.
Ready to climb the Ladder?🔥
After your order
Start the journey to see clearly how your PC is prepared before joining your setup
Tap the PC to launch the animation
This PC will be assembled, checked and then protected before it ships.
After your order
Start the journey to see clearly how your PC is prepared before joining your setup
Tap the PC to launch the animation
This PC will be assembled, checked and then protected before it ships.
Expert advice, professional assembly, and guaranteed performance.
Looking for a machine that matches 100% with your play style or your creative use?
With our custom PC service, you choose every component: graphics card, processor, RAM, SSD, case, cooling and more.
Whether you’re a hardcore gamer, streamer, editor or 3D creator, we assemble the perfect machine for your needs, your budget and your workflow.
Contact usWith its GeForce RTX™ 5080 and Ryzen™ 7 9800X3D processor, the ASCENT X3D PC lets you play the latest games like Cyberpunk 2077, Black Myth: Wukong, GTA V Enhanced, Counter-Strike 2, Fortnite, Call of Duty and Microsoft Flight Simulator with excellent smoothness in 1440p Ultra and 4K.
Yes. Every ASCENT X3D PC is assembled, tested and optimised by FlowUP’s technicians before shipping. Windows 11 Pro (trial version) is preinstalled so you can start playing right away.
The ASCENT X3D PC is designed to get the most out of QHD 240 Hz, QHD OLED and 4K displays. With its GeForce RTX™ 5080, it delivers an exceptional experience with DLSS 4 and Ray Tracing.
The ASCENT X3D PC is for the most demanding gamers, content creators, streamers and professionals who want an extremely high-performance and long-lasting setup.
The ASCENT X3D PC pairs a GeForce RTX™ 5080 16 GB, an AMD Ryzen™ 7 9800X3D, 32 GB of DDR5 memory, a 2 TB NVMe M.2 SSD and a AM5 platform to deliver an uncompromising setup—ideal for 1440p Ultra gaming, 4K, content creation and professional applications.
Choose your delivery option:
- Standard UPS: delivery in 5 to 7 working days (excluding weekends and public holidays)
Our teams assemble and test every PC before shipping to ensure optimal quality.
In case of a stockout or a supply issue, we’ll contact you quickly to propose a solution that fits ✅
Once your order has shipped, you’ll receive an email with a UPS tracking link, allowing you to follow the delivery of your parcel in real time.
Yes, we offer instalment payments with Alma. This option is available in 2x, 3x, 4x, 10x and 12x. Available options vary depending on the legislation in force in your country.
All our assembled PCs are covered by a 2-year statutory warranty, including coverage for defective parts and labour.
In the event of a breakdown, our after-sales service diagnoses the issue and, if necessary, we collect the PC to carry out the repairs.
The Windows 11 trial version is a free edition of Microsoft’s operating system, allowing you to test all its features.
It isn’t limited in time.
If you want to remove the “Activate Windows” watermark, you’ll need to buy an activation key.
Be the first to discover our latest updates, new products, giveaways and events 🔥
In the complex jungle of hardware, FlowUP is your guide! No more random choices and disappointing PCs: with us, never again machines below your expectations.
Our PCs are designed by experts and optimised so that every gamer gets the performance they deserve. Join us for an uncompromising gaming experience!
(218 reviews)
We get it— a PC is a real investment.
At FlowUP, we offer you tested, approved, and ultra-reliable builds, a responsive customer service, and above all a community that only swears by us.
Keeping up?
Your PC in instalments (up to 12x)
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