Reddit mentions of G.Skill Ripjaws 4 Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM 3000 (PC4 24000) Intel X99 Extreme Memory F4-3000C15D-16GRBB

Okay. You basically picked the best parts of every category, apart from the ram, and put them in a build. That does not make the build bad, it just makes it complete overkill. With the exception of overwatch, to reach 100 FPS there in best settings the GTX 1070 is not wrong, see http://www.gamersnexus.net/game-bench/2200-overwatch-gpu-benchmark-and-fps-tests. But if you play that on low as well you should get a used GTX 970.

Mainboard is unnecessary expensive, cooler bigger than needed even if you want to overclock more than mildly, i7 is wasted money over an i5, the 950 Pro also serves no purpose. Half of that ram would be enough, half of that half would work as well. The R5 is a good case and I won't criticize that choice. For the psu a 550W unit would be perfectly fine.

pc-kombo shared list

Type|Item|Price

----|:----|:----
CPU | Intel Core i5-6600K | EUR 236,24 @ Amazon.de
Motherboard | MSI Z170A PC-Mate | EUR 109,43 @ Cyberport
Memory | G.Skill 16GB DDR4 3000 (16 GB) | EUR 81,08 @ Amazon.de
SSD | SanDisk Ultra II 480 (512 GB) | EUR 119,00 @ Amazon.de
Video Card | Radeon R9 Fury | EUR 418,00 @ Mindfactory
Case | Fractal Design R5 | EUR 104,90 @ Cyberport
Power Supply | Seasonic G550 (550 W) | EUR 87,00 @ Amazon.de
CPU Cooler | Thermalright Macho Rev.B | EUR 46,99 @ Amazon.de
| Total | €1210.63
| Generated by pc-kombo 03.06.2016 |

Here the Fury is a placeholder for the GTX 1070. Though, like I said, whether that is even close to a sound buy depends on the wanted overwatch settings.

I adjusted the build a bit to fit my needs a bit more, what do you say:

pc-kombo shared list

Type|Item|Price

----|:----|:----
CPU | Intel Core i7-6700K | EUR 258,00 @ Amazon.de
Motherboard | Gigabyte GA-Z170-HD3P | EUR 111,06 @ Amazon.de
Memory | G.Skill 16GB DDR4 3000 (16 GB) | EUR 80,59 @ Amazon.de
Storage | WD 1TB Blue (1 TB) | EUR 49,26 @ Amazon.de
SSD | OCZ Trion 150 (256 GB) | EUR 61,53 @ Amazon.de
Video Card | GeForce GTX 1070 | EUR 468,00 @ Mindfactory
Case | Nanoxia Deep Silence 3 | EUR 69,90 @ Cyberport
Power Supply | Coolermaster G550M (550 W) | EUR 72,61 @ Amazon.de
CPU Cooler | Dark Rock Pro 3 | EUR 76,55 @ Amazon.de
| Total | €1258.48
| Generated by pc-kombo 20.07.2016 |

Motherboard:

https://www.amazon.com/MSI-Intel-CrossFire-Motherboard-PRO/dp/B01MR31OZ8/ref=sr_1_23?s=pc&ie=UTF8&qid=1487305210&sr=1-23&keywords=z270

https://www.amazon.com/dp/B01NGTJNSZ/?tag=pcpapi-20

Graphics Card:

https://www.amazon.com/EVGA-GeForce-Support-Graphics-08G-P4-6183-KR/dp/B01GAI6478/ref=sr_1_49?s=pc&ie=UTF8&qid=1487305021&sr=1-49&keywords=1080

RAM(low on stock):

https://www.amazon.com/Corsair-Vengeance-1x16GB-3000MHz-Memory/dp/B019HVSNA6/ref=sr_1_2?s=pc&ie=UTF8&qid=1487305108&sr=1-2&keywords=ddr4-3000&refinements=p_n_feature_five_browse-bin%3A677429011%2Cp_n_feature_four_browse-bin%3A10656894011

https://www.amazon.com/G-SKILL-Ripjaws-288-Pin-Extreme-F4-3000C15D-16GRBB/dp/B011SMRX9E/ref=sr_1_3?s=pc&ie=UTF8&qid=1487305108&sr=1-3&keywords=ddr4-3000&refinements=p_n_feature_five_browse-bin%3A677429011%2Cp_n_feature_four_browse-bin%3A10656894011

https://www.amazon.com/G-SKILL-Ripjaws-288-Pin-Platform-F4-3000C15D-16GRK/dp/B013BWBG1K/ref=sr_1_4?s=pc&ie=UTF8&qid=1487305108&sr=1-4&keywords=ddr4-3000&refinements=p_n_feature_five_browse-bin%3A677429011%2Cp_n_feature_four_browse-bin%3A10656894011

https://www.amazon.com/Viper-Elite-DDR4-3000MHz-PVE416G300C6KBL/dp/B0196AWLTM/ref=sr_1_5?s=pc&ie=UTF8&qid=1487305108&sr=1-5&keywords=ddr4-3000&refinements=p_n_feature_five_browse-bin%3A677429011%2Cp_n_feature_four_browse-bin%3A10656894011

144hz monitor:

https://www.amazon.com/Acer-GN246HL-Bbid-24-Inch-Display/dp/B00KO4518I/ref=sr_1_1?s=pc&ie=UTF8&qid=1487305282&sr=1-1&keywords=acer+gn246hl

Wow that's super convenient! Thank you so much!!
___
I was probably gonna go with the RipJaw Series since I've used their DDR3 RAM on this PC and it gave me no trouble. Plus i read they were a good brand and seem to be pretty reasonable with the price, and by looking at the link you gave me both the motherboard and RAM have 288 pin and DDR4 3000 so I should be okay.