Your questions are answered as follows:
- As long as the processor is running in turbo boost mode, both processors should have basically same performance, but you need to take in consideration that the turbo boost usage is determined by the operating system and any running applications.
- The more cores the processor has the more the processor is designed for multi-tasking applications, however remember that the operating system is the one that determines which core to use for a particular task or program.
- That will depend on your personal needs, please check this comparison chart:
The only differences I see are the clock speed, the number of cores, and the power consumption (Max TDP). Remember that the more cores the processor has, the more tasks it can perform at the same time.
If you want recommendations on what processor to buy / upgrade to, I would suggest contacting any of the Authorized Intel® Distributors located at:
If you are outside the United States, please access the following link and select a location, to find the closest authorized distributor: