6GB of Onboard GDDR5 Memory - Yes, you read that right. Also, with the new EVGA Precision X, you can increase the voltage for maximum over clock! Boost 2.0 allows complete control over Temperature Target and Power Target, allowing a new way to customise your overclock. NVIDIA GPU Boost 2.0 - Dynamically maximises clock speeds to push performance to new levels and bring out the best in every game. The result is world class performance and the highest image quality in an elegant and power efficient graphics card. NVIDIA SMX Engine - The new Kepler SMX streaming multiprocessor is twice as efficient as the prior generation and the new geometry engine draws triangles twice as fast. Naturally, mileage may vary between cards, but you can expect the GPUs in the GTX 780 XLR8 to have been binned to a fairly high level in order for PNY to confidently give the card such a large factory overclock and a three year warranty. 
Even better, fan speeds and the cards temperature only rose by 1 percent and 1☌ respectively. It also meant it was able to put a greater distance between itself and the even more expensive GTX Titan, except in Crysis 3 where only its average framerate is higher. Our hefty overclocks meant that the GTX 780 XLR8 actually managed to outperform the GTX 780 Ti, a card that's close to £600, by up to 5 percent. Nevertheless, it's a great result and the card survived plenty of stress testing at these frequencies. Any higher than this, however, and we almost instantly saw errors, so we'd probably tone this down a little were we using it long term. The Samsung memory chips also proved very friendly when it came to overclocking, as we were able to push these up to an awesome speed of 7.8GHz effective, which is another large increase of 23 percent.
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