hybird9012 :
I wouldn't recommend the twin frozrs at all. Their cooling ability is terrible. I have a 7950 Twin Frozr and immediately replaced it with an aftermarket cooler. They are also very loud. I'd recommend Sapphire or Asus cooling solutions.
As for performance, the nVidia 760 is similar to an AMD 7950 and they have similar price and performance. One thing to keep in mind though is that the nVidia 760 only has 2GB of VRam vs. AMD's 3GB... and the memory bit is higher on the AMD (384 vs 256). This could lead to higher frame rates and higher resolutions. However, the memory speed is 1000Mhz faster on nVidia cards. I personally wouldn't get a 7970. You could get a 7950 and overclock it to a 7970 easily. That's what I did
This could not be any further from the truth. Do yourself a favor and take a look at some reviews at TechPowerUps database:
http://www.techpowerup.com/reviewdb/Graphics-Cards/NVIDIA/GTX-760/
The MSI Twinfrozr GTX 760 gaming or OC is reviewed as one of the best cards in terms of both thermal and acoustical performance across a variety of sites.
That being said the Gigabyte 3x Windforce is reviewed as being cool and quiet and performing a bit better "out of the box" as the MSI. Here's some charts from Tom's Hardware that show the heat and noise graphs:
As you can see the Gigagyte and MSI trade blows, though the Gigabyte achieves the same cooling at much higher RPMs with its 3 fans. Faster RPMs and more fans to me indicate a higher chance of failure. Throw in MSI's commitment to high quality components (Military Class IV is their marketing term) and you should feel comfortable with the MSI. The Gigabytes is a great card too. If you're gaming at 1080p it's hard to pass up the value of the GTX 760.