FYI

HardOCP

http://www.hardocp.com/article/2014/03/25/asus_rog_poseidon_gtx_780_video_card_review#.UzHVPPldVKZ

Quote:

Performance versus GTX 780 Ti and R9 290X
The ASUS ROG POSEIDON GTX 780 is based on the NVIDIA GeForce GTX 780 GPU, not the newer and faster GTX 780 Ti. Therefore, for $599 MSRP what we needed to find out is if overclocking this video card on liquid cooling could give us GTX 780 Ti and or R9 290X performance. We wanted to know if the overclock is high enough on a GTX 780 would it equate to the fastest GTX 780 Ti performance in games?

We found out that the answer to that question is an absolute "Yes!" We managed to overclocked the ASUS ROG POSEIDON GTX 780 to 1.306GHz/6.4GHz under liquid cooling. At this high clock speed the performance bested that of the GeForce GTX 780 Ti at default speeds. In fact, the ASUS ROG POSEIDON GTX 780 allowed a better gameplay experience in BF4, Crysis 3 and Far Cry 3. This shows that clock speed greatly affects the GTX 780 GPU.

The ASUS ROG POSEIDON GTX 780 also bested the R9 290X at its overclocked frequency under liquid cooling. We experienced the same better gameplay performance under those three games, even with the 290X running Mantle in BF4 at 4X AA at 2560x1600.