Review: antec khüler 620 v4 vs antec khüler 920 v4

Summer has arrived and for many, a time of rest and enjoy the holidays, but for many others, lovers of overclocking and hardware, a difficult time because of high temperatures. Are you one of those people and do not know how to update your equipment to improve its performance without jeopardizing its temperature? Here, we offer you the two Antec alternatives, the Antec 620 V4 and Antec 920 V4 model that we will test with the new Apu A10-6800K, a state-of-the-art processor with a very high overclocking potential.

Characteristics Antec Khüler 620 V4

ANTEC KHULER 620 V4 FEATURES
Radiator	151mm x 120mm x 27mm
Fan	1 x 120mm x 120mm x 25mm / 1450-2000 RPM PWM / 81.3 CFM fan
Block height	29 mm
Tube length	330 mm
Cooling liquid	Safe, environmentally friendly and anti-corrosive
Net weight	0.7 kg
CPU compatibility	Intel LGA 2011/1155/1156/1366 AMD AM2 / AM3 / AM2 + / AM3 + / FM1
Maintenance	Closed circuit without maintenance.
Warranty	AQ3: 3 year warranty on parts and repair.

Antec Khüler 620 V4, posing in front of the camera.

From the first moment observing its box we see how clear its objective is, to refrigerate forcefully. On the main face, a photograph of the product and all the compatible sockets is the first thing we can see.

We leave you an overview of all the package content. We see the Kit, the sockets and supports, the main fan and the assembly manual.

Close up view of the Kit and its base / pump wearing the Antec logo and model.

The “V4” revision offers tubes that are more flexible and slightly longer than previous revisions. Now we leave you a view of the copper base, with the thermal paste already pre-installed for its operation.

These kits also come prepared for the latest generation of processors, based on AMD's FM2 / AM3 +, 1155/1150 and 2011 Intel sockets, with all hardware and hardware provided.

Like previous models, it requires a mandatory 3pin connection for the Kit pump to operate as well as the supplied fan Rpm control, which has a speed of 1450 ~ 2000rpm.

Finally we leave you with the last two photographs showing the simple radiator in the foreground and a brief test of the flexibility of the tubes.

Characteristics Antec Khüler 920 V4

ANTEC KHULER 920 V4 FEATURES
Radiator	151mm (H) x 120mm (W) x 49mm (D)
Fan	Two units: 120mm x 120mm x 25mm / 700-2400 RPM PWM Control / 110 CFM
Block height	29 mm
Tube length	330 mm
Cooling liquid	Safe, environmentally friendly and anti-corrosive
Net weight	1.1 kg
CPU compatibility	Intel LGA 2011/1155/1156/1366 AMD AM2 / AM3 / AM2 + / AM3 + / FM1
Additional features	Includes a program with the necessary tools for the control and monitoring of the KÜHLER H₂O 920 Non-corrugated tubes due to their flexibility facilitate their connection to the radiator
Warranty	AQ3: 3 years

Antec Khüler 920 V4, posing in front of the camera.

With a very similar presentation to the model seen previously, the 620, this one at a glance there are two things that already make clear the intentions that are, its radiator twice as thick and the two fans that come with the Kit. Like the previous one, It also specifies at a glance the sockets compatible with the current and latest platforms on the market.

With the two photographs that come now, we clearly see the difference in the size of the radiator from the 620 to this one, being exactly twice as thick and therefore more effective.

Like the previous one, it comes with pre-installed thermal paste. A photo with the view and the copper base.

The Kit has the latest supports for all current sockets on the market, including the latest generation, in addition to including this model, two fans with a variable speed from 700 to 2400rpm.

Like the 620, this V4 also offers great flexibility and slightly longer tubes than its predecessor. Here we can see a photo in detail.

And here is one of the main differences from the 620, the Kit management software, supplied in the same package. The Antec Chillcontrol VI.

With it, we can be aware of the temperature of the interior liquid, manage and add performance profiles to the fans, control the type of cooling we want from mild to extreme etc.

For this you have to click the cable that comes to one of the internal USB ports of the motherboard.

Here mounted on a Silverstone Ft03 with microATX format. The installation takes just 15 minutes.

Methodology and test results.

At last, the long-awaited moment arrived, testing the two Antec alternatives under high frequencies. For this review we have the new Apu from AMD, the A10-6800K model that we will analyze later, a model that already has up to 4.4Ghz in its Turbo mode, and the IGP of up to 844Mhz.

For the tests, we have deactivated the energy saving modes, making them not fluctuate the frequencies and incidentally, making them in themselves have higher and more regular temperatures. As standard we mentioned before, this processor comes at 4.1Ghz base and 4.4Ghz in its Turbo mode, at a fixed voltage of 1, 360v. To test the processor, we have the OCCT, a stress tool, very suitable for checking its stability and testing high temperatures.

To check the temperatures, we have set the processor to an impressive 5Ghz, increasing its voltage to 1.5v. Of course, apart from noticing a considerable increase in performance, so will the temperature, and with these two coolers, we will see which is the most suitable for battle. We turn to the results.

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Last words and conclusions.

As we have seen the differences in the tests, they were not as high as many would expect despite having a double fan and a considerably larger radiator. So where is the difference justified ?, obviously in what each product supplies.

The 920 has two series fans, more revolutions and with control software at our disposal that justify the purchase greatly. Being able to add a ventilation profile at the moment, with more or less cooling or noise, or being able to see the temperature state of the liquid, are all the more reason for this.

Both of them offer excellent performance and the 620 is also very attractive in price. Both models are easy to install and even both have the same anchorages, being able to upgrade from a previous or modern 620 to a 920 at any time without even changing the anchorage. Also highlight the null or minimal noise of the two sets, which will allow us to enjoy a silent team while effective.

Regarding temperatures, with a high degree of overclocking such as the one obtained here up to 4ºc difference in an ambient temperature that we have had of 27ºc, it is a high figure, especially for those who plan to mount it on more powerful and leading-edge processors, giving us more margin of overclock, or the same but with better temperature and therefore greater durability.

So, for the tightest pockets, the price performance offered by the Antec Khüler 620 V4 (€ 51) is difficult to beat, and for the most expert or overclock fans, the Antec Khüler 920 V4 (€ 86) will give us series all the qualities we need to have a stricter control of our system.

Its installation is really simple, we must connect the backplate, the 4 screws and place the block. If by chance it is necessary to upgrade from 620 to 920, it is not necessary to uninstall the lower supports, making a block change is sufficient.

ADVANTAGE	DISADVANTAGES
+ Both refrigerations are suitable for high degree of overclock.	- Little difference in performance between 620 and 920.
+ The Antec Khuler 920 includes in its bundle with two high-speed fans.	- The Antec Khuler 620 only includes with one fan.
+ Anchors compatible with each other and previous versions.	- Antec Khuler 920 V4 price premium compared to his younger sister.
+ Assembly with closed angles thanks to not being corrugated pipe.
+ Price of 620, unbeatable in performance / price.
+ The Antec 920 has software to control ventilation profiles.
+ None require additional maintenance.
+ Compatibility with all sockets on the market.