It was just announced a little bit ago, so benchmarks are sparse, and all we have is a few videos from the likes of:
What we see in these CPU's is a lot more cores for the dollar (all with hyperthreading), however the cores themselves can't compete with Intel. For example, in the 3rd video I linked, we see that the 1800x was directly competing with the 6900k, and we see it had identical single core performance.
The 6900k however is a broadwell processor, so we can roughly expect a 10% increase in core performance in the 7700k at the same clock speeds. The other important thing to note is the 7700k is clocked at 4.2Ghz base, while the 6900k is clocked at 3.2Ghz base. This sample math to me suggests that the 7700k should have roughly 44% higher single core performance than the 1800x without any OC's. That said, the Ryzen 7 chips have twice as many threads, so if multithreading optimization is perfect, in theory they should be 38% faster on tasks that can utilize all these cores.
Anyway, from a consumer standpoint, the 1600X and the 1700 will likely be the sweet spot, and from looking at the specs, I can safely say that they are the best performance for the dollar. There's a lot of information we still need about motherboards and such, but what we can say is that the 1700 (priced at $330), will be around 30% faster for a similarly priced i7 7700k for tasks that can utilize all those cores. However, for whatever reason, a lot of games wont even use more than 4 threads, and just about none will use more than 8, so is there any reason of choosing this over Intel?
This video here is an excellent demonstration of cores and threads you need to play most games with a mid-range graphics card:
Thoughts on Ryzen? How will this shape our custom rig building in the next month to follow?
March 2nd is when Ryzen chips will go on sale, you can preorder them now.