Which low profile heatsink is better?

I am choosing a processor heatsink for my AMD X2 7750BE within a thin casing Media and I am only 115 millimeters / 4. 5 “clearance from the top of my CPU on the side panel. They are then divided into a few choices here, 1) Coolermaster Geminii S (88 mm / 3. 46″) http://www. Xbitlabs. Articles com / / coolers / display / CoolerMaster-Gemini-s. html2) Scythe Ninja Mini (115mm / 4. 5 “) http://www. overclock3d. comentário net /. php? / cases_cooling/scythe_ninja_mini_cpu_cooler/13) nexus xir-3500 (111 mm / 4 3.) http:// www. TweakTown. com/articles/1407/nexus_xir_3500_copper_ed_cpu_cooler/index. HTML4) Thermaltake maxorb (95mm / 3. 7 “) http://www. frostytech. com / retail items. cfm? articleID = 2294Alors that makes these the best?