The two original GeForce GTX 770 graphics cards we’ve discussed today have quite a lot of things in common. They are similar in GPU frequencies and ASIC quality as well as in temperature, which means that their coolers are comparable in performance. Although the Zotac’s cooler is quieter, we can’t really call either of them quiet in 3D applications. As for differences, the Palit GeForce GTX 770 JetStream features an original PCB with an 8-phase GPU power system and check points for measuring voltages. It has higher overclocking potential, too. The Zotac GeForce GTX 770 AMP! Edition also features an improved PCB, yet it is overall simpler than the Palit's. The Zotac is more compact, has more accessories and comes with an extended 5-year warranty, though. In any case, we recommend our readers to wait for more reviews of original GeForce GTX 770s and only then make up their mind as to what exactly variant to buy.
As for our tests of the 2-way SLI configuration built out of two GTX 770s, we are quite satisfied with the outcome. It only failed in one game, namely GRID 2, but the latter is a new title, so this problem is likely to be corrected with driver updates and game patches. In the other cases, the GeForce GTX 770 tandem ensures a performance boost of 80 to 100%, beating the dual-processor GeForce GTX 690, which costs $1000 even now, a year after its release. That’s about $100 more than the cost of the two original GeForce GTX 770s. Savvy?