Thermaltake Pacific W4 RGB CPU Water Block Review

Test Bench

For our tests, we used our Project Core Arancio system which is comprised of an ASRock Fatal1ty X99 Killer 3.1 motherboard, along with an Intel Core i7-6800K at default clock speed of 3.4GHz, as well as 16GB of ADATA XPG Dazzle DDR4-2400 ram in dual channel mode.

We used AIDA64 CPU stress test which produces 100% CPU load and recorded the temperatures for both stock and overclocked CPU speeds.

Temperatures – Default clock @ 3.4GHz

Idle Temps

Idle temps was around 32 degree Celsius which is fine is there’s nothing for the CPU to do. Let’s the full load temps below.

Load Temps

We managed to get some excellent temps for the Thermaltake Pacific W4 RGB CPU Waterblock – 45 degrees at CPU full load.

Temperatures – Overclocked @ 4.0GHz

Idle Temps

We got idle temps of around 34 degrees Celsius, which is pretty good for an overclocked i7-6800K @ 4.0GHz

Load Temps

Full load temperatures reach a high of 62 degrees Celsius, which was surprisingly good. Much better than I expected.

In Comparison

Here’s a quick comparison between the XSPC RayStorm Pro, the Thermaltake Pacific W3 and the Pacific W4 CPU Water block. 

Idle Temps

Load Temps