NVIDIA needed to respond to AMD's R9 290X graphics cards and they did so with a supersized version of the GK110 core found in the original TITAN. The GeForce GTX 780 Ti ends up being the fastest single card on the market thanks to this new design that adds even more processing units but keeps the power and thermals the same as their past cards. Now the performance is sufficient that it is even playable for games at 4K display resolutions which was unheard of before. The best part is that the noise levels are much better than past cards even with the two fans and overclocking. The card requires one 8-pin and one 6-pin PCI-Express power connectors for a power supply rated at least 600 watts. Video connectors include two DVI, one DisplayPort and one HDMI. Priced around $670.
AMD had a few weeks of being on the top when they released their Radeon R9 290X graphics card but it slipped with NVIDIA's GTX 780 Ti launch. The big difference is that the Radeon R9 290X cards are more affordable with this overclocked version from Sapphire costing just $580. The downside is that this is a massive card to fit the three cooling fans and the noise levels can be quite high when the card is pushed hard. It can reach 4K resolution levels though. The card requires one 8-pin and one 6-pin PCI-Express power connectors and a 700 watt power supply. Video connectors include two DVI, one HDMI and one DisplayLink.
The AMD Radeon R9 290 is essentially a scaled back version of the R9 290X. The card is significantly more affordable but it actually only drops a very small level of performance such that it actually can outperform NVIDIA's cards in the same price range. This makes it an excellent value but it does have some cooling issues just like the 290X but this is handled by the three fans making it a really long card. This means that card has just enough performance to run games at 4K resolutions but it does so with a good amount of fan noise. Setting it to a lower fan noise unfortunately drops performance below 4K levels but still good for 2560x1440 at very high detail levels. The card requires one 8-pin and one 6-pin PCI-Express power connector and a 750 watt rate power supply. Video connectors include two DVI, HDMI and DisplayPort. Priced around $440.
With the release of the AMD R9 series graphics cards, NVIDIA's GeForce GTX 780 based cards have dropped significantly in price such that you can now get one for under $500. The cards when overclocked have roughly the same performance as the R9 290 but struggles more at 4K resolutions, but it does still provide excellent frame rates at 2560x1440 with very high detail levels all while producing much less heat and noise. The card also uses less power as it only requires a 600 watt power supply with one 8-pin and one 6-pin PCI-Express power connector. Video connectors include two DVI, one HDMI and one DisplayPort. Priced around $485.