Razerium :
How do I check exactly which parts I have?
Simplest option would usually just be to take the side off your case and look. There's software to check these sorts of things, but in my experience it's quicker to open a case than to download and run a program.
Razerium :
What about 3-way 7790? so body from another thread said would be the best of options.
What do you guys think of a GTX Titan?
And what exactly is the difference between a GPU and a graphics card? I thought I had a normal graphics card.
And my processor? Would it cope?
Three-way CrossFire and SLI has a lot more issues than two-way, and I consequently don't recommend it. Beyond that, 2 x 7970 is absolutely fine for recording max-settings gaming, something I can personally attest to.
The GTX Titan is exceptionally overpriced for the performance it gives, and is solidly beaten by two 7970s, 770s, 290s, or 780s, all of which cost less for the pair than for a single Titan.
A GPU is the literal processor on your graphics card. Your graphics card includes more than just a graphics processor (VRAM, the cooler, the printed circuit board itself, etc.), though most people use GPU and graphics card interchangeably, which while not technically correct is close enough not to bother about usually.
Your CPU should be fine. The 2600k is a solid processor, and is only a little behind the 4770k for performance. As a general rule, CPU doesn't factor much into gaming. So long as it's not holding back your GPU(s), you're in good shape.
sheag123 :
frame rating issues were never resolved with the 7000 series, they were made better with the r series but still not what sli is.
not sure if you have heard of pcper.com but they are one of the few to actually be measuring frame times and according to them, the frame rate issues with the 7000 series in crossfire were still occurring pretty much to the same extent since the catalyst drivers were released which was on aug 1, a couple months ago. amd didn't correct this issue with the 7000 series. the r series are better as i said though.
i thought this was more common knowledge than it is appearing to be.
http://www.pcper.com/reviews/Graphics-Cards/Frame-Ratin...
so as it stands, i cant recommend crossfire to anyone cause i wouldn't want to have to deal with it for the life of the cards or 1-2 years myself.
The article you linked shows that there have been drastic improvements in the frame pacing issue. In the Closing Thoughts section, Ryan specifically commends AMD for working to address the issue. While it's not quite on par with SLI, it is only slightly behind. What's more, as someone specifically using the exact setup I am recommending for OP, I can attest that I do not experience any noteworthy issues with microstutter.