Obviously we are always dealing with a theoretical bottleneck somewhere, no part are gonna run at a 1:1 ratio with everything else. But we are looking at this from a practical pov not a theoretical. Will a 2600k sb clocked at 5 ghz remove this "fps" drop the op is having? I believe it won't. A bottleneck in crysis would most likely show itself as your cards not running at their max gpu usage even if the scenes are heavy but still leaving you with bad performance. Using the term badly here pritty lously since well at a normal resolution we all now his system would produce beyond playable rates before it would run into a bottleneck either on the gpus or cpu side of things. You could probably try and 'somewhat' rule out the cpu by simply lowering the graphical settings, if the fps raises (hopefully alot ) then you have cause to believe that the actual processor is capable of running the game engine and doing so at a very high speed/drawrate - indirectly indicating that the system has vast amounts of extra resources. - Scale up the graphics and you put more stress on the gpus, cpu will have to work harder as the graphics get more complicated but not at the same ratio/pace as the gpus has to work harder, not in this game. Mind you I'm not laying out facts this is how I reason with this game and engine. Now this is ofc not 100% scientific since you cannot easily account for driver overhead, and translate x amount of excess fps at lowest/lower resolution(s) to draw linear conclusions on how capable the cpu is when it comes to shuffling the extra data required for a higher resolution and or graphical setting - but it can give you a strong hint. I think people should chillout abit with the insults @ the op, and save your victory dance for when he had the time to actually test it out. Nevertheless, he was *hopefully* here to get advice and it is within his right to take it or leave it. You people remember the amount of insults Bodar recieved from some parts of this community when he 1st came here and posted to get advice? Might wanna check your fire guys.