So, taking this into account, from a standard MSRP line, the R7 1700 is better to get, however, a 1700X is available at a discounted price which equals that of the 1700's MSRP, the 1700 is not available at this lower price due to stock shortage at the current time. If it was, it would be around 30 GBP cheaper. So, I will be choosing the 1700X, for a higher clock speed, and same price to a lower clocked chip.
To back myself up here, Linus even talked about the importance of clock speed in things like video encoding and potentially streaming, so the higher performance at a similar price is enough to dictate this option.
Thanks everyone for your input.