asus geforce gtx 770 DC II OC edition exchange possible

asus gtx 770 best for gaming...i have 2 of this ......used only 2 week ,
came from uk...both of then have original box include all accessories ......collect from my home nd i will give u 1 months warrenty........gtx 770 in sli beats gtx 980 quite easily in every games......u can easily get 70+ fps in games.......u can also play 4k with this gpu...one gtx 770 blow away thw radeon r9 280x.........so its ur choice..single price 20000tk
specification:
Graphics EngineNVIDIA GeForce GTX 770 Bus StandardPCI Express 3.0 Operations Pipeline (ROP)32 Transistors3.54 Billion
Engine ClockGPU Boost Clock : 1110 MHz
GPU Base Clock : 1058 MHz
Memory Size2048MB GDDR5 Memory Clock1750MHz (7010 MHz Effective) Memory Interface256-bit
see more at :http://thepcenthusiast.com/asus-geforce-gtx770-dc2oc-2gd5-…/
original pictures added...any information plz call me and also exchange possible with high end card........... thanks....