EK 275 Conquest review: Custom watercooling for cheap

EK Fluid Conquest sitting on a table.

EK 275 Conquest

MSRP $4,800.00

“The EK 275 Conquest proves you don’t need to spend big for quality custom watercooling.”

Pros

  • Beautiful design and tasteful branding
  • Clear filling instructions
  • Blazing-fast gaming performance
  • Clean cable management
  • Cool and quiet
  • Excellent support

Cons

  • Poor ray tracing performance
  • Limited customization options
  • Upgrades can be a hassle

Custom watercooling is the final frontier for PC enthusiasts, and EK wants to make it available to the masses. The EK Fluid Gaming 275 Conquest is a custom watercooled PC built with the best watercooling components you can buy, and its unbelievably low price helps it rank among the best gaming desktops.

Although the all-AMD Conquest isn’t cheap, it’s still as much as $1,500 less than the competition. Even better, it comes with the backing of EK’s massive catalog of watercooling products, allowing you dip your toes into the world of custom watercooling before you fully dive in.

Design

Thw EK Fluid Conquest PC sitting on a coffee table in front of a window.
Jacob Roach / Digital Trends

The 275 Conquest is a beautiful PC. The Lian Li PC-011 Dynamic it’s built inside is the best PC case you can buy, showing off the clean hardline tubing running throughout the machine. The 275 Conquest also has a distribution plate specifically designed for the case, which is washed in a sea of RGB.

EK also uses custom power supply cables for your 24-pin, 8-pin PCIe, and 8-pin CPU connectors, and they’re trained so that that none of the braided cables overlap each other. This is Falcon Northwest Talon levels of build quality, just without the massive premium.

EK has a little branding, but it’s all tasteful. The Lian Li badge that normally lives in the PC-011 Dynamic is replaced by an EK badge instead, and EK’s logo is etched into the top of the distribution plate.

The EK badge on the Fluid Gaming Conquest PC.
Jacob Roach / Digital Trends

One of the reasons the PC-011 Dynamic is a great PC case is that it offers a ton of room for cable management, and EK takes advantage of it. Even when you take off the back panel, there’s not a cable in sight. Everything is neatly tucked away, built with the attention to detail you’d have if you put together the PC yourself. That’s a lot more than machines like the MSI Aegis RS 12 can say.

The only complaint I can drum up is that the tubing runs to the GPU look like they’re at a slight angle. It’s so slight that you can’t notice it from most angles. I’m in awe with the EK 275 Conquest, not only because of the exceptional build quality, but also because EK doesn’t charge a massive premium for it.

Specs and pricing

Everything in the EK 275 Conquest is branded, much like the Origin Neuron. You know exactly what you get upfront, so you don’t have to worry about some custom motherboard or manufacturer-only memory causing problems with your system.

CPU AMD Ryzen 9 5900X
GPU AMD Radeon RX 6900 XT
Motherboard Asus Prime X570 Pro
Case Lian Li PC-011 Dynamic
Memory 32GB G.Skill Trident Z DDR4-3200
Storage 1TB Seagate FireCuda 510, 4TB Seagate Barracuda
Power supply EVGA 850W 80 Plus Gold
USB ports 9x USB-A (7x rear, 2x front), 2x USB-C (1x rear, 1x front)
Networking 1Gbit Ethernet

For specs, the 275 Conquest is just below EK’s top Conquest model, which comes with a Ryzen 9 5950X. You can scale down to a Ryzen 5 5600X and RX 6700 XT for $2,500. EK offers its Vanquish line for Nvidia fans, though these machines run a few hundred dollars more than their AMD counterparts.

The 275 Conquest is a great value.

You don’t have a lot of options for configuration, unfortunately. Memory and storage are the only two areas you can customize, and EK doesn’t offer any options with Intel processors. EK offers several configurations for AMD and Nvidia, though, so you shouldn’t have any problems finding a machine that works.

For pricing, the 275 Conquest is a great value. If you were to buy everything on your own, you’d spend around $4,000. The 275 Conquest costs $4,800, but $800 is a pretty reasonable premium, especially considering the $4,000 price I quoted doesn’t include things acrylic tube cutters, much less a three-year warranty that covers leaks.

Memory inside the EK Fluid 275 Conquest desktop.
Jacob Roach / Digital Trends

The value is even more clear when you bring in the competition. A similarly configured Maingear Vybe with a three-year warranty will run you $6,000, and it comes with a much worse case. That’s not to mention the pedigree EK has in the watercooling community, with a massive catalog of products to trick out, repair, and upgrade your build in the future. All things considered, $800 is a small price to pay.

Servicing

A bottle is used to fill the EK Fluid 275 Conquest desktop.
Jacob Roach / Digital Trends

Custom watercooling requires maintenance, but it’s a lot less tedious than you might think. EK ships the 275 Conquest without fluid in the loop. There are rogue splotches of water in the loop from when EK tested the machine before sending it out, but you’ll need to fill the loop yourself with the included fluid.

The included instructions are easy to follow, and EK even has a video showing the process on its YouTube channel. Squirting water into a PC always feels unnatural, but EK offers through instructions so that even beginners won’t feel lost. You can have the loop moving in about 15 minutes.

EK doesn’t offer any resources beyond the initial fill, though. The only documentation I could find on maintenance is an FAQ that recommends draining and refilling the loop annually.

This doesn’t seem like negligence, just oversight. The included doc has instructions for draining the loop, and EK includes an extra drain tube. Simply noting that you should refill the loop annually on the included instructions would go a long way, so I hope EK does that in the future.

Upgradability

Components installed in the EK Fluid 275 Conquest.
Jacob Roach / Digital Trends

Upgradability is dicey on the 275 Conquest for two reasons: The custom loop makes upgrades tedious, and most major upgrades will void your warranty. The warranty bit is frustrating, but it makes sense; if you have to take apart the loop to make an upgrade, EK has no way of guaranteeing it’ll be put back together without leaks.

If you want to upgrade and still be covered, you can call EK for a quote. It will collect, upgrade, and return your PC to you. EK normally has products for the latest CPU and GPU launches, so if you want a shiny new graphics card down the line, there’s a good chance EK will be able to accommodate.

For PC builders who can handle the moisture, the 275 Conquest is fair game.

For PC builders who can handle the moisture, the 275 Conquest is fair game. You can buy everything in the system, all bits of the cooling loop included, on its own. You’ll need to set aside some time to plan and execute upgrades due to the custom loop, but EK doesn’t lock users with upgrade limitations like the Asus GA35DX does.

Processor performance

The heart of the EK 275 Conquest is the Ryzen 9 5900X. It’s a powerful 12-core processor that, up until recently, was only outclassed by AMD’s own Ryzen 9 5950X. The Conquest is an all-AMD system, which is a bit to its determent (at least before AMD reveals its Ryzen 7000 processors).

EK 275 Conquest (Ryzen 9 5900X) Maingear Vybe (Ryzen 9 5900X) HP Omen 45L (Core i9-12900K)
Cinebench R23 multi-core 20,361 20,802 23,068
Cinebench R23 single-core 1,581 1,597 1,893
Geekbench 5 multi-core 13,813 12,724 15,685
Geekbench 5 single-core 1,629 1,718 1,910
PugetBench for Premiere Pro 842 956 1,025

The Ryzen 9 5900X inside the 275 Conquest falls in line where I’d expect. Compared to the Maingear Vybe, which has the same processor, you can see almost identical single- and multi-core results in Cinebench and Geekbench. The HP Omen 45L is a more interesting point of comparison.

It comes with Intel’s Core i9-12900K, which universally outclasses the Ryzen 9 5900X. The multi-core improvements in Geekbench and Cinebench are impressive, but the single-core results stand out more. Intel is at the top of the stack when it comes to processor performance right now, and the EK only offers machines with AMD chips.

The CPU block inside the EK Fluid 275 Conquest.
Jacob Roach / Digital Trends

The RX 6900 XT is a sour point for creative pros, too. You can see how it lags behind the RTX 3080 Ti in the Maingear Vybe and the RTX 3090 in the HP Omen 45L in PugetBench. Despite the RX 6900 XT being an exceptionally powerful GPU, Nvidia still has the lead when it comes to creative apps. Thankfully, EK offers Nvidia cards if you want one.

Gaming performance

The GPU inside the EK Fluid 275 Conquest.
Jacob Roach / Digital Trends

Processor performance may be disappointing, but the 275 Conquest is a hell of a gaming machine. The RX 6900 XT powering the graphics is obscenely powerful, matching or even exceeding the best that Nvidia has to offer. You can see my results at 4K with the highest-quality preset below.

EK 275  Conquest (RX 6900 XT) Maingear Vybe (RTX 3080 Ti) HP Omen 45L (RTX 3090)
Forza Horizon 4 192 fps 148 fps 159 fps
Red Dead Redemption 2 76 fps 76 fps 76 fps
Assassin’s Creed Valhalla 68 fps 64 fps 66 fps
3DMark Time Spy 19,492 17,160 18,523
3DMark Fire Strike 39,307 35,088 N/A
Fortnite 80 fps 82 fps 82 fps
Cyberpunk 2077 non-RT 43 fps 38 fps N/A
Cyberpunk 2077 RT w/ FSR 42 fps 38 fps N/A

The HP Omen 45L comes with an RTX 3090, but the RX 6900 XT outclasses it. In every game but Fortnite, the RX 6900 XT managed a lead over Nvidia’s most powerful GPU. And those differences are significant in some cases, with the 275 Conquest outpacing the Omen 45L by nearly 21% in Forza Horizon 5. 

Step down to the RTX 3080 Ti inside the Maingear Vybe, and the differences open up even more. That said, I saw some hard limits in certain titles regardless of the GPU’s power. Red Dead Redemption 2 is a good example, with the same average frame rate across the three GPUs at 4K.

The RX 6900 XT is a great gaming GPU, but it has a weakness: Ray tracing. Even the RTX 3080 Ti was 46% faster in Cyberpunk 2077 with ray tracing turned on, despite falling short of the RX 6900 XT with ray tracing turned off. You can compensate with AMD’s FidelityFX Super Resolution (FSR), but it doesn’t look great.

I’m extremely happy with the gaming performance of the 275 Conquest.

A big advantage of Nvidia graphics cards right now is Deep Learning Super Sampling (DLSS). It’s essential to get ray tracing games playable, and it looks much better than FSR. The RX 6900 XT is the cream of the crop, but Nvidia has better platform features at the moment. And that makes a big difference in titles like Cyberpunk 2077. 

Still, I’m extremely happy with the gaming performance of the 275 Conquest. If it wasn’t for the poor ray tracing performance, the RX 6900 XT would be the best graphics card on the market, no question. The good news is that most games don’t have ray tracing, and if you want to turn it on, FSR can still improve your performance.

Software

Tubing inside the EK Fluid 275 Conquest.
Jacob Roach / Digital Trends

It’s hardly surprising given how much else the 275 Conquest gets right, but the machine doesn’t come loaded with bloatware. All that’s installed out of the box is AMD Ryzen Master and Asus Armoury Crate — both essential utilities for the components inside.

The machine also comes loaded with Windows 10, which I’m a fan of. Windows 11 is still very new, and many PC gamers prefer Windows 10 for stability. This machine is fully compatible with Windows 11, however, so you can upgrade for free if you want.

Our take

The EK 275 Conquest manages exceptional build quality, stunning visuals, and chilly temperatures for a price that’s almost too good to be true. If you want custom watercooling and don’t want the hassle, EK Fluid Gaming is your best option. Anything else is effectively wasting money.

Are there any alternatives?

Yes, but most of them are more expensive:

  • $6,000 Maingear Vybe — Much more expensive and comes with a worse case, but Maingear offers more customization options.
  • $5,000 Origin Genesis — Significantly larger and more expensive, and doesn’t included a water-ooled GPU. There are more customization options, however.

How long will it last?

You need to drain and refill the EK 275 Conquest at least once a year, but as long as you do that, it can last for a long time. Upgrades are possible, though they may not be practical if you don’t want to get your hands dirty with custom watercooling.

Should you buy it?

Yes. The EK 275 Conquest is exceptionally well built, and it’s much cheaper than the competition. It also uses EK parts for watercooling, which have a massive pedigree in the community.

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