There are fans of both but here we don't have any issues with our choice.
Google the i7 model versus the R7 and add the word USERBENCHMARK to get a quick overview.
At the moment I'm between the i7 and the R5/R7 2xxx. So, which to choose?
Here's a little price comparison (prices in brazilian Real): https://imgur.com/J7uDs2j

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