You will be able to play it maxed out alright. The game is very demanding on the CPU, and your CPU, even though not the best, will do the job at the resolution you want it to.
Also, make sure to keep all NVidia Control Panel Settings to Application Controlled, else, you will not be able to experience the awesome mod at it's best.
Also, just in case you need to lower your settings, lower the Shadow Settings Only. This will give you a huge boost (if you turn it off completely).