A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, closer to a processor core, which stores copies of the data from frequently used main memory locations.
It takes approximately 31 empty aluminum cans to equal 1 pound. As of 2014, the average weight of an empty aluminum can is 14.9 grams.
With a $0.60 per pound market rate for general aluminum, the least you should receive for your cans is $0.30 per pound. Anything less than that is a scrap yard dealer attempting to maximize their profits at your expense. These prices are also negotiable, which some people may not realize.