EK-Coolstream RAD XTX (360)

This is #12 in my series of triple radiators the EK-Coolstream RAD XTX (360).  We previously looked at the more value oriented XT model which uses brass tubes and a slimmer 47mm with only two barbs.  The XTX model I am looking at in this review turns performance up a notch by using copper tubes and a more premium 64mm thickness.  In addition it provides several additional port options as well as an air bleed screw port feature for even more luxury level features.

A special thanks to EK for providing the review sample:

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EK Specifications:

Product Description:

EK ultimate performance radiators are designed for extreme enthusiasts. These radiators are optimized for maximum heat dissipation even at lowest fan speeds. Choosing EK-CoolStream RAD XTX will give your watercooling system an upper hand you need to cool your hot hardware.

EK assured quality level and an optimal price-performance ratio make these EK-CoolStream RAD XTX radiators unique. The new radiators feature, besides their great design and high build quality, superb cooling performance.

The copper fins are optimized for both high- as well as low-speed fans therefore the new XTX radiator is an excellent all-around performer. The parallel flow cooling chambers reduce flow resistance to a minimum. Radiator shrouds are tapped with M3 threads on both sides to enable push-pull fan installation.

Radiator features G1/4 threaded ports on both sides of the radiator which enables various installation possibilites as well as stacking option. Bleed/fill/drain port, soldered to the bottom chamber, allows user a better overall handling and makes item more convenient.

Technical details: 
Material:
– Copper fins
– 90% copper tube (H90)
– Brass chambers
– Steel housing

Dimensions (LxWxH): 400x130x64mm
Weight: Approx. 1496g
FPI: 11
Fan installation: 12 x M3 threads on both sides each (for 3x120mm fan each)
Pressure tested: 1bar

Enclosed:
– 1x EK-CoolStream RAD XTX (360) radiator
– 12 x M3 x 30mm DIN965 screws
– 12 x M3 x 5mm DIN965 screws
– 3 x G1/4 plug with Allen key

Known compatible computer chassis that can house the radiator internally without any modification at all:

– SilverStone TJ11, TJ07
– Thermaltake Element V series
– Corsair Obsidian 800D
– Cooler Master HAF X (NVIDIA edition), HAF 932 series
– Case Labs Magnum M8, M(H)10, T(H)10 series
– Xilence Interceptor, Interceptor Pro
– LD PC-V8, PC-V8 Reversed

Installation Manual

http://www.ekwaterblocks.com/shop/EK-IM/EK-IM-3831109860229.pdf

Drawing with dimensions:

http://www.ekwaterblocks.com/shop/images/product_spec_sheet.jpg

The more important specs to note is the “90% Copper Tube” which has shown in previous testing to make a noticeable improvement over brass tube radiators of similar construction.  I’m not quite sure what the 90% portion means other than it must not be pure copper, but I suspect it’s to give the copper a bit more rigidity since pure copper is fairly soft. Also notice the 64mm thickness which makes this radiator a bit thicker than even your typical premium radiator which range from 54 to 61mm…this one tops the thickness charts.

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