I need help to stop bottlenecking, not sure what CPU to get with a 1070ti, can anyone assist with this. Like the title says I do plan on getting a 34inch 3440x1440 Ultrawide, and I want to be able to play WoW, Overwatch, Skyrim, GTA V, and Tomb Raider on high settings and get a stable 55-60fps on it.
**CPU** | [Intel - Core i5-4670K 3.4GHz Quad-Core Processor]
**Motherboard** | [Gigabyte - GA-Z87X-D3H ATX LGA1150 Motherboard]
**Memory** | [G.Skill - Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory]
**Storage** | [Samsung - 840 EVO 120GB 2.5" Solid State Drive]
**Storage** | [Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive]
**Storage** | [Samsung - 850 EVO-Series 500GB 2.5" Solid State Drive]
**Storage** | [Western Digital - Caviar Black 4TB 3.5" 7200RPM Internal Hard Drive]
**Video Card** | [EVGA - GeForce GTX 1070 Ti 8GB FTW ULTRA SILENT GAMING Video Card]
**Case** | [NZXT - Phantom 410 (White) ATX Mid Tower Case]
**Power Supply** | [Rosewill - Hive 550W 80+ Bronze Certified Semi-Modular ATX Power Supply]
**Optical Drive** | [Samsung - SH-224DB/BEBE DVD/CD Writer]
**Operating System** | [Microsoft - Windows 10 64-bit]
I know I need a new CPU, MB, and Ram, but which CPU should I get
i5-8400
i5-8600K
i7-8700K?
Budget has no limit, but I do need it balanced around the 1070ti. Thanks