TweakTown Ranking: 89%
Our Verdict
The RZ620M X is quite a lot of cooler for the cash, however settles into a distinct segment market of customers who would recognize what CPS and PCCooler confirmed us.
Execs
- Price
- Aesthetics
- Straightforward-to-use {hardware}
- Availability
- ARGB and no software program
Cons
- Noise degree
- Slower most CPU pace
- Above-average thermals
Do you have to purchase it?
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Introduction, Specs, and Pricing
In our time writing about CPU coolers, you get the sensation that you’ve got seen nearly every thing from each doable producer. Even so, there are occasions when coolers appear to come back out of the woodwork with little fanfare from a maker you might by no means have thought-about to fulfill your wants. Whereas we now have met with this producer earlier than, they completely impressed us with their RZ620 and its capacity to take high honors in CPU air cooling, towards many better-known firms.
Whereas the RZ620 is quite a lot of issues, the foremost consideration was dimension, because the dual-tower, twin-fan-cooled meeting ate up actual property. For these with smaller motherboards, smaller circumstances, taller RAM, and so forth., the RZ620 rapidly will get dominated out. So, what’s PCCooler to do? Make a child brother to the RZ620, with a watch on compatibility, whereas conserving the styling cues, ease of set up, and widening their viewers with the discharge of this compact contender.
With this newer RZ620M X CPU cooler, you get every thing we lined in a mini dual-tower design, therefore the ‘M’ after the 620. The X portion of the title is more durable to pinpoint, however perhaps it’s for eXtra room, or eXcellent compatibility, however anyway you see it, this beefy little cooler has the texture of one thing severe. Historical past says smaller fan-powered coolers have a tendency to not deal with the duty, however we’ll quickly see if the CPS / PCCooler RZ620M X BK can tackle our 9900X and are available out rosy on the opposite facet.
| Merchandise | Particulars |
|---|---|
| Mannequin | RZ620M X BK |
| MSRP | $45.99 |
| Socket | Intel: LGA 1851 / 1700 / 1200 / 115x AMD: AM5 / AM4 |
| Shade | Black |
| Dimensions | 104 x 94 x 118.5mm |
| Heatpipe | ?6mm x 6pcs |
| Fan Dimensions | 100 x 100 x 25mm |
| Bearing Sort | Ball Bearing |
| Velocity | 1000-3000±10% RPM |
| Airflow | 54.2 CFM |
| Air Strain | 2.92 mmH2O |
| Noise Vary | 14.8 – 32.5 dB(A) dB(A) |
| Connector | 4-Pin PWM |
| Voltage | 12VDC |
| Present | 0.11A |
| Energy | 1.32W |
| Lighting Sort | ARGB |
| Connector | 5V 3-Pin |
| Present | ?0.25A |
| Guarantee | 3 Years |
The RZ620M X we now have is the black model, however there’s additionally a white choice for these wanting a extra sterile look. Compatibility is huge, protecting mainstream Intel customers utilizing LGA115x by way of LGA1851, with AM4 and AM5 assist for AMD clients.
The mini portion of the title comes into play when wanting on the dimensions. Entrance to again, the cooler is 94mm, and facet to facet it’s only 104mm, however the most effective half is the 118.5mm total top. Even with its compact dimension, the RZ620M X sports activities six 6mm-diameter copper warmth pipes to attract warmth from the nickel-plate copper base into the 2 stacks of aluminum fins.
Between the pair of fin stacks is a 100mm fan spinning on ball bearings. The RPM vary runs from 1000 on the low finish to 3000 on the most PWM name. At 3000 RPM, you’ll get 54.2CCFM, 2.92 mmH2O, and 32.5 dB(A), as proven within the chart. A 4-pin PWM connector powers the fan.
Our Newest CPU Air Coolers Assessment Protection
There’s one other part to say: the quilt, with its small ARGB show, that additionally takes all of the fuss out of fan mounting. The quilt is powered through a 4-pin 5VDC connector, whereas the flip facet homes a bracket for mounting the fan, and all of it clips into the highest of the tower with as little effort as doable.
As with all CPS warmth pipe air coolers, you’ll get three years of protection towards a lifeless or dying fan or any main harm that the purpose of sale couldn’t tackle. Extra amazingly, in our present economic system, there are nonetheless sub-$50 options to ponder in your subsequent construct, and at simply $45.99, it is exhausting to not give the RZ620 M X a good shake and see what CPS and PCCooler have on supply.

Greatest Offers: PCCooler CPS RZ620 CPU Cooler
Packaging

VIEW GALLERY – 32 IMAGES
CPS places their title on the RZ620M X field, with a play of shiny darkish grey and lighter grey triangles, and a shiny orange bit to the left. A lot of the panel is used to indicate the cooler, which can be sporting that orange triangle on its cowl.

The fitting facet of the package deal is basically a decreased model of what we noticed on the entrance, however this time, solely the cooler and its title are proven.

The change to black for the again makes the white take a look at pop rather more than grey would, and we see every thing we mentioned earlier, minus the ARGB bit. If you wish to look on-line, go to PCCooler.com, and your serial quantity is on the backside of the panel.

The left facet of the field goes again to grey, reveals the title, and says it’s a high-performance cooler, with the opposite half of the orange triangle on the fitting this time.

Contained in the cardboard, one can find the cooler and {hardware} surrounded in dense black foam, making certain the cooler arrives in prime situation for the client. The cooler can be wrapped in plastic to guard the paint and finishes, and the literature is within the {hardware} field.
CPS / PCCooler RZ620M X BK

Recent out of the field, the RZ620M X offers the fin stack a checkerboard attraction, and we just like the even unfold of pipes beneath and the cap above that covers the pipe tricks to gown issues up.

The mini dual-tower design options two stacks of 40 aluminum fins, every with tabs to assist with spacing and airflow seize. With a centralized fan for cooling, it leaves one other 25mm of clearance on the entrance of this design that others can not supply.

The checkerboard look is achieved with a triangular geometric fin stack, the place the sides are tallest to assist a fan, with the central portion distorted to interrupt up airflow and permit room to construct stress. All fin edges, back and front, are similar to this.

With evenly spaced fins, tabs with triangles pressed into them, and the facet of the fan exhibiting rotation and circulation marked with arrows fabricated from triangles, the theme hits within the small particulars. If you happen to look carefully, and room is not any concern, you might connect followers to the back and front of this tower, though {hardware} isn’t provided.

Eradicating the quilt and fan permits us to see the bottom of the RZ620M X. Whereas the bottom is 2 items soldered across the warmth pipes, it’s also grooved to behave as a pre-cooler. The screws to mount the cooler to the remainder of the {hardware} can solely be accessed with the fan out of the best way.

Contemplating there are such a lot of pipes in such a small space, the bends are easy, and spacing leaves the pipes to the edges, the place the fan delivers extra circulation. These six 6mm warmth pipes have fins pressed onto them, and we will even make out CPS pressed into the middle of every fin.

Coated with a protecting sticker, the bottom of the RZ620M X is likely one of the cleaner ones we now have seen and is about as near good as one might count on. Machining is finished in a round sample, leaving the central portion greater to extend stress on the CPU’s warmth spreader.

The opposite finish of the tower is the place fashion was added to decorate it up, including some aptitude and illumination. The CPS brand sits on the high left of the textured black plastic cowl, and within the reverse nook is a triangular part backed with ARGB lighting.

With little pressure utilized, the highest cowl unsnaps from the 4 cup-like clips discovered close to the hole in the midst of the towers. CPS additionally designs the ARGB lighting to stick with the tower, permitting the cable to run by way of the central groove reduce into the fins, so customers do not should are inclined to that connector each time they need to clear the fan.

The underside of the quilt homes a skinny metal bracket that makes use of screws to mount the fan on each side, utilizing foam pads on the backside to remove vibrations. Additionally they open the underside of the fan body, permitting it to go over and across the cooler’s mounting {hardware}, so it sits as little as bodily doable within the tower.
Equipment and Documentation

These on a mainstream Intel construct will need the brackets on the left and the common backplate with changes to suit the supported sockets. With AM4 and AM5 builds, all you want from listed here are the brackets on the fitting of the backplate.

Together with a giant tube of EX90 thermal paste, we get the common standoffs and bracket mounting nuts. The standoffs match each AMD {hardware} and the offered Intel backplate, and all knurled nuts use the finer thread on high.

The guide offers all the photographs you possibly can deal with, with renderings that take you thru every mounting variation appropriate with the cooler, after a elements record will get issues going easily. Ending with a wire diagram helps end the job, and you ought to be in enterprise in below 5 minutes, tops.
Set up and Completed Product

As talked about beforehand, the quilt and fan have to be out of the best way when it is time to mount the tower, as proven by the screwdriver within the hole. As at all times, alternate just a few turns to every till you run out of threads, and easily substitute the quilt and fan, and plug it in.

In a lot of our photos, its compact dimension is not as obvious as when it hides behind RAM for scale. It’s straightforward to see how the central fan concept solves points, and we do have much more room than we usually get with dual-tower examples.

No matter RAM you need can be utilized with the RZ620M X, because it leaves all 4 DIMM slots free. Not solely can you will have the tallest RAM made, however you can even use all of the density you possibly can afford.

There’s something very satisfying about this visible. The RZ620M X resembles a full-cover water block, with its clear, flat, textured look that matches completely contained in the house it’s designed to suit into.

Spinning round to the entrance and transferring in for the view most will get when utilizing the RZ620M X BK of their system. The slick fin design performs with lighting, and the quilt is a pleasant match to the theme of our system.

When you add energy to the system, the RZ620M X performs its final card, because the triangular cutout erupts right into a shiny show of coloration managed by motherboard sync software program, mimicking the motherboard LEDs as carefully as doable.
Take a look at System Setup, Thermal Exams, and Noise Outcomes
Chad’s CPU Cooler Take a look at System Specs
| Merchandise | Particulars |
|---|---|
| Motherboard | ASUS ROG STRIX X870E-E Gaming Wi-Fi (Purchase at Amazon) |
| CPU | AMD Ryzen 9 9900X (Purchase at Amazon) |
| RAM | Patriot Viper Elite 5 32GB @ 7000MT/s (Purchase at Amazon) |
| GPU | GIGABYTE GeForce RTX 4070Ti Tremendous Windforce OC 16G (Purchase at Amazon) |
| SSD | Patriot Viper 2TB VP4300 PCIe m.2 Gen4 x4 (Purchase at Amazon) |
| Case | be quiet! Mild Base 900 DX (Purchase at Amazon) |
| Case Followers | be quiet! Mild Wings White 140mm PWM Excessive-Velocity ARGB (Purchase at Amazon) |
| Energy Provide | be quiet! Darkish Energy Professional 12 1500W (Purchase at Amazon) |
| OS | Microsoft Home windows 11 Residence 64-bit (Purchase at Amazon) |
| Software program | AIDA64 Engineer 7.60.7300, and CPU-z 2.14.0 x64 |
To see our testing methodology and to seek out out what goes into making our charts, please consult with our 2025 CPU Cooler Testing and Methodology article for extra info.
Thermal Outcomes

There are higher air-cooled outcomes than 43.6°C as an idle temperature, however we’re inside a few levels of the most effective, and, surprisingly sufficient, the identical because the RZ620.

Including stress raised temperatures and noise ranges, and, when it comes to temperature, we ended up with a median of 76.6°C. Nowhere close to the 95°C thermal cap of the CPU, and fewer than 16 levels from the most effective water-cooler temperature appears affordable for a cooler of this design.

Our most temperature throughout stress testing was 86°C, which is way nearer to the throttle level. We nonetheless by no means noticed the CPU operating at its base clock, however it had an enormous impact on PWM.
CPU Velocity

Our common CPU pace throughout all cores below stress places us on the backside of the chart at 5.174GHz, which remains to be a good increase from the 4.4GHz base clock, however we will see almost 100MHz misplaced in comparison with colder choices.
VRM Thermal Outcomes

Contemplating the CPU being cooled, and the one 100mm fan doing all of the cooling, we will not discover a difficulty with the 56°C we noticed within the VRM row of the software program below stress. You might do higher, however why, the RZ620M X did simply nice with cooling the facility supply.
Fan Velocity and Noise Ranges

Beginning at idle, we noticed the 100mm fan spinning at 1188 RPM, which is affordable, since a smaller fan should spin quicker to realize the identical impact. Noise is not actually a difficulty at 32 dB both, however below stress, issues fully change. The followers averaged 2430 RPM over the run, and we noticed many cases when the fan needed to attain 2900 RPM or greater to maintain up with what was happening.

Noise ranges could possibly be the deciding issue. The truth that we acquired to 56 dB below stress is quite a lot of noise to cope with. Whereas avid gamers might not thoughts, this is not one thing for an HTPC with out main modifications to the fan management.
Remaining Ideas
First off, we wish to return to the beginning, after we unboxed the cooler and first felt the beefiness of the tower, in its weight and common first appears, we have been impressed. We observed instantly it was too small for a 120mm fan, however the confusion set in after we realized it wasn’t 92mm both. We imagine this can be the primary CPU cooler with a 100mm fan, however it’s the first dual-tower CPU cooler to make use of a single 100mm fan. CPS and PC cooler actually took their chart-topping answer, decreased it a good bit, opted for a single fan and easy-to-use cowl, making this space-conscious cooler one of many higher thought-out “compact” coolers we now have examined.
On the similar time, exhausting details are what they’re, and science has to science, and in that vein, we should get to what we noticed in our testing. At first, issues appeared regular, spectacular even, as soon as we began evaluating notes. Idle temperature was good, verify. Let’s transfer on. We waited a bit because the noise went from audible to you possibly can hear it down the corridor kind of noise, in much less time than anticipated. The RZ620M X spent a lot of its time extra audible than not, and below heavy stress, at 56 dB, you possibly can hear it over the headphones. We all know it should occur to get the thermal outcomes we noticed, that are respectable, however it comes with an enormous audible value.
Utilizing just a few tips and a few well-laid-out plans, I believe CPS and PCCooler made one thing for the goal they’re searching. These of you with just a few air-cooled choices with out going to liquid have your fingers tied, and with costs growing, budgets are a extra severe a part of a construct than ever. That mentioned, the RZ620M X has its place, and it’ll slot in locations many others will not. Nonetheless, the noise degree could also be a troublesome capsule to swallow, even with 3 years of assist and the low $45.99 price ticket. For these with no different choices, by all means give it a go, however for individuals who want silence and have room for bigger choices, you might need to take into account one thing else.
