There are a couple things that might be causing a lower score than you expected. First, it looks like you ran the 32-bit version of Geekbench which will give you a bit lower of a score than the 64-bit version since it can't take advantage of all the RAM. Second, make sure you have all the driver, BIOS and Windows updates installed. Finally, your RAM is a bit strange since you have 10GB total. I'm guessing you have 2 4GB sticks and one 2GB stick? If so, drop the 2GB stick since you likely don't need more than 8GB of RAM and having RAM that isn't paired can often drop performance by quite a bit. Using 1333MHz RAM instead of 1600 might also be dropping your score a bit, but likely not by much.