macbook 64 bit kernel

Snow Leopard and 64-bit?
I have a 13-inch MacBook Pro 2.53GHz Intel Core 2 Duo, 4GB of DDR3 RAM and 250 GB HDD 5400 rpm Min and operating system snow leopard. My question is will start the way snow leopard 64bit kernel my computer faster or since you have only 4 GB of RAM, I do not see much difference in speed compared with the use of 32 bits. How much memory CAN 32-bit kernel support? Moreover, no walk in the snow leopard is 64 bit uses more energy?
To understand the answer to your question you must understand that 64-bit and 32 bit media. A bit is a binary digit (a 1 or a 0). A 32-bit processor can handle numbers up to 32 bits long. A 64-bit processor can handle numbers up to 64 binary bits long. Essentially, this will make the fastest computer in the processing of major mathematical equations. However, if the capacity of 64 bits are used to return the application you use. If the application has been designed to a 32-bit platform, it will not take your 64-bit processor. However, Snow Leopard operating system has many features and integrated applications that can take 64-bit architecture. In summary, you can see a slight increase in speed, especially with the system operating base, but in terms of gameplay, so you will not see the difference. In addition, 64 bit mode will probably not consume battery power more.
Snow Leopard 64 bits kernel (K64) for everyone!