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The majority of Liquid Coolers on the market today are based around Asetek designs, but the Liquid Freezer II features a pump which was designed in-house by Arctic, with the goal of quieter operation and higher efficiency. Like its fans, the water pump is PWM-controlled and will adjust its speeds. This decreases power consumption and leads to lower noise levels in lighter workloads. The nature of a review cycle (while a product is relevant) typically dictates that there’s no means to realistically test for endurance or age. We can revisit in the future if needed, but that’s the only question mark left after the review process: Arctic’s pump design is new, something we’ll look at in our tear-down video coming up shortly, and a new design means we have no reference point for endurance and reliability. In general, liquid coolers outlive the usable life of the system, and potentially two systems, but those that fail do so in a much more visible or catastrophic fashion. Failures are overall rare, however, and that’s always important to note. We’ll send you to our Air vs. Liquid cooler content for more of an explanation on this front. Disclaimer: Every silicon is different; hence no two same SKUs are likely to take the same voltage to yield the same performance at the same thermals per se, but the margin would be close. Not every stress test run may yield the same result, which could be due to various reasons like thermal paste application, ambient temperature variation, the mounting pressure of the cooler, etc. This is very why we have listed our variables and their settings. Variables not mentioned are on the Auto setting. Result Thermal Performance (Image By Tech4Gamers) Very impressive indeed! Though with this noise level, thanks to modes speed fans by AIO standards, we do wonder if full-speed thermal performance will be compromised slightly. Let’s find out. After installing and testing it, I found Cooler Master’s new MasterLiquid 240 Atmos especially impressive. It’s clear the company has improved its flagship AIO in several key areas. Noise levels are low in most common workloads, and despite its smaller 240mm profile, the 240 Atmos is one of only a handful of AIOs I’ve tested that's capable of keeping Intel’s i7-13700K under its peak temperature, even in the hottest of workloads.
You’ll need to make sure there’s room to install an AIO cooler in your PC case, preferably in the top or rear, exhausting your CPU heat out of the chassis. AIO coolers typically come in three sizes, defined by the dimensions of the radiator and the fans the radiator is designed to fit: 120 (one 120mm fan), 240 (two 120mm fans), or 360mm (three 120mm fans). If you’re seeking efficient cooling with minimal noise: the ARCTIC Liquid Freezer II 360 offers excellent cooling performance while maintaining a quiet operation. Other than those points, I have very few complaints. The 6-year warranty is superb, I love the fact that the cable management is so straightforward for an end-user, and even classy touches such as including a tube of thermal paste have me impressed. For testing, we use a 30-minute looped run of Cinebench R23 and record the steady-state CPU temperature at the end of the test. This ensures that the CPU has had ample time to warm up and reach steady state under all of the coolers. Interestingly, the three fans are connected to each other via a daisy-chain approach that is pre-routed. This is an excellent solution as the cable management is far cleaner than what a typical end-user could achieve.Modern AMD & Intel CPUs are designed to run fairly hot without any problems– up to 95 degrees Celsius for AMD Ryzen 7000 CPUs, and up to 100 degrees C for Intel’s Core i9-13900K. Similar behavior has been standard in laptops for years due to cooling limitations in cramped chassis. Note the use of delta temperature data in our charts and factor in your own ambient conditions for reference. Not a big deal since laying the board flat on the table bypasses it, but this could be even easier if Arctic refined the solution with cap screws. On the installation front, buyers should also be aware of the short cables for the fans. They can be connected to the splitter cable (which is sleeved alongside the tubes), but we prefer connecting our fans directly to the motherboard to exercise more control over the fans. This is easily solved with some 4-pin-to-4-pin extension cables. Conclusion Our next chart continues with the 3950X 200W load, but allows all the coolers to run at 100% fan speed during the test. This doesn’t move the needle much for Arctic, which seems to top-out in its efficiency at around 1200RPM rather than its maximum 1600RPM. The results were +/-1C as usual, but our average ended up at 50.9 degrees over ambient. That’s not enough of a change, so there’s room to reduce noise level without much loss of overall performance. At the 1610RPM speed, the Arctic cooler ran at 42.5dBA at the normal 20” distance. This puts it about equal in thermal performance to the NZXT Kraken X62 and X72, which run around 51-53dBA, or a perceived noise increase to the human ear of about 2x. Again, that’s perceived to the human ear, not acoustic power, which is a different scale. Either way, Arctic’s solution is significantly quieter at the same performance. The EVGA CLC 360 shows that we’re not limited by our test bench, but also that jet engine levels of noise are needed to drive the temperature down further. 3800X – 35dBA Starting out with noise results at full fan and pump speed, the Arctic Liquid Freezer II 360 A-RGB performs very well. In fact, this is the quietest AIO cooler that we have tested to date. And with those superb Arctic P12-based 1800 RPM fans, the noise output is actually better than many high-end air coolers.
The fan configuration is the three included Fractal Dynamic X2 GP-14 fans spinning at full 1000 RPM speed. In addition to the two 140mm front-mounted fans, and single 140mm rear exhaust, we added a be quiet! Pure Wings 2 1000 RPM 140mm fan as roof exhaust for air cooler testing. The aim here was to keep consistency with the airflow path of the liquid coolers which are always roof mounted. With that 40mm VRM cooling fan onboard, we were anticipating strong VRM cooling performance. But that is not what we really got. Then again if you get the deepcool you can just front mount it and call it a day. I haven't personally had any experience with deepcool's radiators but I've heard good things and for the smaller size I think it would be worth it for you to buy it from your local store Time to move to VRM thermals. Before putting this chart up, a few important points: First, this is all relative, so our measurement points aren’t designed to test the motherboard, but rather to test the cooling capabilities of the CPU cooler on top of it. We’re taking VRM measurements at points that will work better for testing cooler impact, since we don’t care about comparative VRM performance from one board to the next. Second, we’ll show the numbers with the radiator mounted to the side of the bench. That’s how we tested all the liquid coolers so far, as it is more similar to a top-mounted radiator in a case. This means there’s always airflow over the VRM heatsink in all the CLC tests, whereas testing it on the table, away from the VRM, would paint a picture of Arctic’s VRM fan having a higher relative impact since you’d be taking away all cooling otherwise. We have these numbers too, but let’s focus on 3950X OC numbers at 35dBA radiator fan speed first, with the Arctic VRM fan at 100%. The test is also tough to standardize since every motherboard will have different heatsinks and positioning, so although you can mostly extrapolate out a hierarchy, it’s not perfectly comparable to every configuration. And again, please also remember that case configuration is the single most impacting to VRM thermal performance outside of the VRM design and cooling solution. What we’re saying is that this test will create an objective hierarchy, but that in all reality, a couple degrees here-and-there from the cooler won’t really matter much when considering the VRM is unlikely to melt itself in the majority of instances. On the top side of the angled plastic pump unit is the 40mm VRM fan. The translucent housing of this fan is not RGB LED lit, and this feels like a missed opportunity by Arctic.
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We won’t be too harsh in this respect as the balance between noise and performance does look to be incredibly strong. But with a 63C delta in our testing, the 360mm Arctic AIO is behind the curve for competing 360mm and even higher end 240mm AIOs. We also test each cooler with at least two fresh installs (typically three) to mitigate the likelihood of a dodgy mount spoiling results. If you do this then be careful as I tried this once while I was dismantling something on my pc and it nearly fell off. But if you do want to do this then you would have to get the arctic as the deepcool's tubes are too short for this (i.e. putting the rad on top, not inside the case) First, I'm not sure if the LS720 will perform better or the same at the same noise level or the same at a lower noise level. I don't know the fans on the LS720, but from what I've read the fans on the LF 2 are very good (I think I'll get the non ARGB fans if I get the LF 2, the ARGB fans have lower specs). Also, I've read the Arctic pump is quite small and I would need to run it at a higher speed than the Deepcool, which would make more noise. Is that true? Under PBO conditions with full fan and pump speeds, the Arctic Liquid Freezer II 360 A-RGB does a good job.
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