First, sorry for my english.
I think that Ryzen 1800X is a excelent product, revolutionary would I say by allowing us access to so much power for such a low price, I am not interested in games, not in Windows and not in overclocking. The cause of this kind of disillusionment that there is now...
That these Ryzen R7 processor (8 cores / 16 Threads) are not ideal for gaming was evident for each technical guy. If you look in the Linux side (phoronix.com), the guys are excited with the 1800X performance.
If the result for i7-7700k is because this processor is only 4C/8T versus the other intel parts, the value in this prime benchmark should be approximately 40, not 27.
The low result for ryzen in primes surely is because this is a AVX2 benchmark. Also in this bench the memory bandwith must be very important because the intel i7-7700k has also a very low result (the i7-700k has 2 memory channels, the others intel parts have 4 memory channels).
Yes, the problem with GPUs are the applications that require a lot of memory and a lot of memory bandwidth at the same time. AMD has been working long time in line to integrate the GPU and CPU because AMD thinks that the future for scientific computing is that.
In addition, to obtain this type of performance (8 flops/clock for AMD or 16 flops/clock for Intel part) you need special libraries as intel MKL (for intel part) or OpenBlas, by example, where the mathematical kernels are written in assembler code.
Hello, in Europe the price is higher. I am writing from Madrid, Spain. I just watched the prices for the i7-6900k in two very popular sites in Spain. The price is 1114 euros in one site and 1185 in another site. I am sure that in USA you can buy this i7-6900k below 1000 dollars.