Upgrading PC

He guys, i am planning to upgrade my PC, I am still running on a old (as in VERY VERY OLD) dell workstation. I havent build a pc or paid attention to the recent ongoings in the hardware community so i would like your help. I need a PC upgrade i dont need a GPU since i recently slapped a new gpu in my workstation but i need all the other parts (CPU RAM, mobo, case, PSU etc) i would ike too keep the budget within 800$-900$ including a windows license. My main tasks are gaming, running some cad software, programming and a little bit (almost neglegible) photo editing. If you would be able to explain your decision that would help me get back in the flow of the hardware

Unless your current system breaks, I would recommend being patient. AMD will hopefully release Zen in Q2 2016.

"Some CAD" means heavy work with complex 3D parts or simpler 2D design? Basically: Do you think you need 4, 6 or 8 cores with X amount of RAM?

What GPU did you buy?

Can you list the specific programs you plan to use and a small blurb of the most intensive task you plan to do with it?

This helps determine if you can benefit from any add on cards or take advantage of gpu acceleration, etc.

Most intensive task is catia v5 r21 renders (3D) after that gaming. My current gpu is a 660ti and serves my well for right now. I suspect ill need at leat 4 cores maybe add hyperthreading. 16 gb of ram has proven to be enough (now running 16 gb of ddr 2 ecc ram xd yes its that old xd)

I now realize that recenty slapped a gpu means three years haha well for now the 660ti does its job so xd

I am really not sure. You might be a candidate for an AMD 8350 (8-core at 4GHz) but a Intel i5 6600 might also do the job... while being more expensive... [Swear word]
http://pcpartpicker.com/p/Hb3nbv <-- 8350 + 16GB RAM + R9 380 + Windows7 64-bit
http://pcpartpicker.com/p/rp6gVn <-- Same as above without video card

Cad as hobby....some flavor of i3 or i5.
Cad professional....Xeon.
CSGO addict...the new skylake pentiumG.
Frankly you can build awesome for 400 to 700 now.

Cad professional use it on almost a daily basis for my study. However i actually do not see the benefit of xeon in cad what will it give extra ?

Already have a 660ti which will do the job for now

Woops forgot about that.

http://pcpartpicker.com/p/nZhLMp

PCPartPicker part list: http://pcpartpicker.com/p/nZhLMp
Price breakdown by merchant: http://pcpartpicker.com/p/nZhLMp/by_merchant/

CPU: Intel Xeon E3-1231 V3 3.4GHz Quad-Core Processor ($232.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper TX3 54.8 CFM Sleeve Bearing CPU Cooler ($18.73 @ OutletPC)
Motherboard: ASRock H97M PRO4 Micro ATX LGA1150 Motherboard ($62.98 @ Newegg)
Memory: G.Skill Value Series 16GB (2 x 8GB) DDR3-1333 Memory ($63.99 @ Newegg)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($149.88 @ OutletPC)
Storage: Western Digital BLACK SERIES 2TB 3.5" 7200RPM Internal Hard Drive ($119.75 @ OutletPC)
Case: Fractal Design Core 1000 USB 3.0 MicroATX Mid Tower Case ($29.99 @ Newegg)
Operating System: Microsoft Windows 8.1 OEM (64-bit) ($84.99 @ NCIX US)
Total: $763.30
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-01-02 19:39 EST-0500

No GPU though ended up spending a chunk on storage since your current gpu seems fine.

More threads. However the new skylake may be better, have yet to see them compared head to head.
The standby gaming chip is an I5 4590k but intel just came out with the skylake line, a bit faster and a bit more money. Skylake also has a much improved iGPU. The Haswell line is still very fast and prices are dropping I7 4790k is an awesome cpu at 280 bucks.(actually devils canyon)
Xeon has the same thread number but slower and olny like 200 bucks.
If you go with the new skylake Motherboards will cost a bit more.
I am more familiar with the AMD stuff cause my budget but just trying to help out:)