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Performance Summary Diagrams

First of all, let’s check out the difference between the faster of the two GeForce GTX 770s we’ve discussed today and the reference GeForce GTX 770.

The Zotac is an average 5-6% ahead of the reference variant thanks to the pre-overclocked GPU and memory. That’s good, especially as the original card doesn’t cost much more but features an improved PCB and high-efficiency cooler.

Now let’s see how efficient the SLI technology is when applied to two overclocked GeForce GTX 770s as compared to a single GTX 770 working at the same clock rates.

The SLI tandem isn't always perfect. For example, the performance growth in the new GRID 2 is very small (although Nvidia promises to improve it in new drivers). On the other hand, the SLI configuration can be up to 100% efficient in heavy games. The average performance growth across all the games with the antialiasing settings is 79 to 82%. Considering that the GeForce GTX 770 is new, we can expect it to perform better in SLI configuration as the drivers get more optimized.

And now let’s compare the SLI tandem built out of two overclocked GTX 770s (from Palit and Zotac) with the dual-processor GeForce GTX 690 which is overclocked to the same frequencies (+100 MHz for the GPU and +200 MHz for the graphics memory):

It is the GeForce GTX 770 tandem that wins most of the tests, only losing to the dual-processor card in GRID 2 and in one mode of Hitman: Absolution. The 2-way GeForce GTX 770 SLI configuration is faster than the GeForce GTX 690 by an average 5-8% at 1920x1080 and by an average 7-8% at 2560x1440 across all the games. Considering the lower cost of the SLI tandem, it is undoubtedly preferable to the GeForce GTX 690.

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