I currently have 2 sticks of 256 DDR PC3200 (400) memory for my HP. I accidently bought 2 sticks of 256 DDR PC2700 (333) memory. If I install this new memory, the PC2700, into my PC with my existing PC3200 memory, will my PC run faster? If there's a compatibility issue or not much of a difference I'll just return the memory and purchase PC3200, but I did get a deal, so I was hoping I could use it. Thanks in advance for the help.