Should i get a i5-4690k or an i7-4790k.

[craft35]

This is my build that i will use for gaming and i plan to overclock, i will also be using two monitors. Is it worth it to spend the extra money on the I7?

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($218.98 @ OutletPC)
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler ($89.98 @ OutletPC)
Motherboard: Gigabyte GA-Z97X-Gaming 5 ATX LGA1150 Motherboard ($138.98 @ OutletPC)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($72.98 @ OutletPC)
Storage: Crucial MX100 256GB 2.5" Solid State Drive ($104.99 @ SuperBiiz)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($53.97 @ OutletPC)
Video Card: Gigabyte GeForce GTX 970 4GB WINDFORCE Video Card ($359.99 @ Amazon)
Case: Corsair 450D ATX Mid Tower Case ($109.99 @ NCIX US)
Power Supply: SeaSonic 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($129.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.98 @ OutletPC)
Monitor: Asus VG248QE 144Hz 24.0" Monitor ($269.99 @ NCIX US)
Wireless Network Adapter: TP-Link TL-WDN4800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter ($36.75 @ OutletPC)
Total: $1603.57
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-09 18:30 EST-0500

 

[turkey3_scratch]

For gaming no need for the I7. The I5 is just good enough and you won't see a difference (in gaming).

 

[coovargo]

http://cpuboss.com/cpus/Intel-Core-i7-4790K-vs-Intel-Core-i5-4690K

The 4790K is faster than the 4690K in single-threaded applications so overall it will be better for gaming. However, I will admit it's not going to be by a margin worth arguing over.

 

[geofelt]

A very reasonable build.

My thoughts:

1. For the cost of a top liquid cooler, you might as well get a i7-4790K.
You get a better binned chip that runs at 4.0/4.4 turbo stock. An extra 2 multipliers is not really needed.
Buy a simple tower type cooler if you want quieter operation.

2. Unless you will be storing large files such as videos, I suggest you buy a 500gb ssd up front and defer on the hard drive. It is easy to add a hard drive later. I like Intel and Samsung best at the moment.

3. Seasonic is an outstanding brand, but a 620w unit that is not gold rated and not modular can be had for much less:
http://pcpartpicker.com/part/seasonic-power-supply-m12ii620bronze
Gold rating saves you pennies in electricity.
And, you are going to use most of the power leads anyway. The rest are easy to tuck away out of the cooling airstream.
4.

 

[MADD617]

For gaming no need for the I7. The I5 is just good enough and you won't see a difference (in gaming).

I disagree with this.
I have a i7 CPU and I have used Speedfan to monitor CPU usage (both actual cores and virtual/hyper threading cores).
When playing Battlefield 3, it shows that almost all threads are being used. Even when loading a heavy webpage such as Battelog, Hyper Threading is being used to get things ready to process.

i7 is worth the money, but 5th dual gen i7's will be coming out this month. Quad cores mid year. If you need a new PC now, i7 is the better choice in my opinion.

 

[geofelt]

Windows tries to spread cpu activity across all threads.
Just because you see activity on all 8 threads iof a i7 does not mean that your apps are multi core enabled.
If, for example you see 25% utilization on each of 4 threads, that is a good indicator that you are looking at a app that is single threaded and cpu limited.
If the extra $100 is not a big bother, though, I really like the i7-4790K.
You get a better binned chip that runs 4.0/4.4 at stock. Few will need more.
For the importance of a fast core, even in a multithreaded environment, read up on "Amdahl's law"

 

[MADD617]

Windows tries to spread cpu activity across all threads.
Windows tries to spread cpu activity across all threads.
Just because you see activity on all 8 threads iof a i7 does not mean that your apps are multi core enabled.
If, for example you see 25% utilization on each of 4 threads, that is a good indicator that you are looking at a app that is single threaded and cpu limited.

So what if I get 25%-90% utilization on all 8 threads?
I know 25% utilization of each of 4 threads doesn't necessarily mean that you're using HT, but when all threads are being used, it only makes sense that something is using HT.