Arctic Accelero Hybrid II-120 Liquid GPU Cooler

Cooling | Graphics Cards
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Arctic Accelero Hybrid II-120 GPU Cooler

December 8, 2014 by Lawrence Lee

Arctic Accelero Hybrid II-120 GPU Cooler
Street Price

Cooling a modern high-end graphics card quietly is a difficult task due to the massive amount of heat they put out. Their unenviable position directly adjacent to the CPU makes it tougher yet. Liquid cooling is a natural fit for this cause, transferring the heat generated by the GPU core directly to a location where it can be quickly expelled from the case. This allows all the components to run cooler, as the heat doesn't linger inside the case as long.

This advantage was evident when we reviewed the NZXT G10 GPU bracket, which allows a variety of closed loop CPU coolers to be adapted for use on a graphics card. Paired with a NZXT X41 (140 mm radiator) and slapped onto a factory-overclocked GTX 680, the results were tremendous. The GPU core temperature ended up well under 70°C at an impressive noise level of 17~18 [email protected] Both the CPU and PCH ran considerably cooler as well, so the effects were system-wide. Can the all-in-one unit Arctic Accelero Hybrid II-120 perform similarly?

Formerly known as Arctic Cooling, Arctic is a bit of a legend as one of the first aftermarket heatsink manufacturers to take on graphics card cooling. A decade ago they launched the VGA Silencer, a classic that was the GPU-equivalent of the Zalman CNPS7000. They received similar acclaim for the Accelero S1, a superb fanless model, and followed that up with the formidable Accelero Twin Turbo and Accelero Xtreme series.

Main components.

The Hybrid II-120 is Arctic's second foray into liquid GPU cooling. The original Hybrid is a combined air/liquid cooling solution with a small fan blowing over the VRM. This model moves away from that paradigm, shifting VRM cooling to the opposite side of the PCB by utilizing a large fanless aluminum heatsink which can also help cool the memory chips and other components as well. A support bracket, that latches on to the screw points of four expansion slots, helps keep the card from bending from all that weight. Meanwhile, the GPU core itself is cooled by a basic AIO cooler with a 120 mm fan.

Package contents.

Due to the nature of the heatsink, the accessories are unusual for a GPU cooler. A large blue thermal pad precut into 50 pieces is used to transfer heat from the various board components to the back side heatsink. A protective plastic film ensures the heatsink doesn't directly contact any circuitry, but you have to manually cut holes in it so the pads can make contact. Also included is a syringe of Arctic's MX-4 thermal compound, all the necessary bolts, screws, nuts, and washers, and a bit of documentation.

Arctic Accelero Hybrid II-120: Specifications
(from the product web page)
Max. Cooling Capacity 320 Watt
Radiator Dimensions 150 x 120 x 25 mm
Pump Dimensions 70 x 70 x 28 mm
Heatsink Dimensions 218 x 98 x 23 mm
Total Weight 793 g
Fan Speed 400 - 1,350 RPM (Controlled by PWM)
Fan Airflow 74 CFM / 125.7 m³/h
Fan Noise Level 0.3 Sone @ 1,350 RPM
Fan Power 0.25A/+12V DC
Compatibility - Nvidia* GTX 980, 970, Titan (Black),780 (Ti), 770, 760(Ti), 680, 670, 660 (Ti), 650 (Ti boost), 580, 570, 560 (Ti,SE), 550Ti, 480, 470, 465, 460(SE), GTS 450, 250, 240 (OEM)
Compatibility - AMD* R9 290(X), 280(X), 270(X),R7 265, HD 8870, 7870(XT,GHz), 7850, 6970, 6950, 6870, 6850, 6790, 5870, 5850, 5830, 4890, 4870, 4850, 4830, 3870, 3850, 3690
*Accelero Hybrid II-120 is compatible only with the graphics card using a standard size PCB with a width of 98mm. Graphics cards with different dimensions will not be compatible with this cooler. This includes:
-Low profile Graphics card
-Graphics cards with extended PCB (such as : ASUS DirectCU II R9 290, GTX780-DC2OC-3GD5)

The compatibility list is based on AMD Radeon and NVIDIA's reference board layout only. ARCTIC holds no responsibility for incompatibility on non reference boards. Please check the height restriction drawing before purchase.

In the vast majority of the cases, it is not possible to assembly this cooler when the graphics card is located in the first extension slot of the motherboard.

The official specifications list quite a few video card models as compatible but there are several caveats.

  • The card must have a standard size PCB (98 mm wide).
  • It can't be a low profile model.
  • Arctic can't guarantee it will work on non-reference boards.
  • The fan is controllable via PWM but connects directly to the graphics card with a 4-pin connector. Some video cards utilize 5-pin headers but they are out of luck as no adapter is included.

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