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[LitusSaxonicum]

I had a go with 8.30pe and didn't think it was any faster than 8.10. Perhaps the /64 is.

What it does do is to put up the PE nag screen with a /LGO compilation, which 8.10 didn't.

Answer to John about why buy AMD - it makes sense if you are buying 1000, most of which aren't used for number-crunching. Also makes sense if you are using your own money. Makes sense if your apps work fine on a low-spec cpu. Equally makes sense if your apps depend heavily on the GPU rather than the cpu.

Eddie

[DanRRight]

Adding to Eddies comment about AMD: this specific batch of processors - Ryzen - became much faster for the same money exactly for multithreaded tasks.
.
Read today's Anandtech review of new batch of Ryzen+ processors.

One potential huge win of AMD here could be for linear algebra due to 4 channel memory architecture for Ryzen / Ryzen+ and even 8 channel for 32-core Threadripper. And factor of 2 difference in price is substantial and very favorable for AMD. Some server Intel processors are probably have 50x the production cost if compare to mobile processors. Latter ones are often made with even more advanced technology, with more transistors on chip and also require to build expensive multi-billion dollar factories but sell for $5 per core.

For single threaded tasks (like compiling and running simple codes) Intel is faster but this time delta is so marginal that nobody should care. You can additionally win around 5% with Intel by overclocking its processors while AMD being on the heat dissipation limit (it is hard to fight with the behemoths like Intel) overclocks not much.

[JohnCampbell]

Dan,

The performance is certainly interesting, although i7-8700k @ $359 vs Ryzen 7 2700X @ $329 is not "factor of 2". I'd check the precision of the processor you used for the X2 result.

Also the Ryzen review I found used 3,400MHz DDR4 ram, which may remove some price advantage.

I don't know the benchmark test you reference, but 2.541 billion ops per second might be low. I am getting 28 gflops for linear equation reduction on 8700k using 12 threads (s = s + a*x is 1 op).
(Erwin, I am now reducing your 23 GByte Atlanta matrix in under 20 minutes)
The algorithms I use would struggle to utilise 32 threads, while controlling stack overflows could be an issue. There are more problems than threads !

Your chart certainly implies that AMD is now comparable to Intel, which is a good thing.

John

[DanRRight]

John,
Compare apple to apple, 8 core to 8 core, $600 vs $330. Don't forget, Ryzen can handle 4 channel RAM giving twice larger memory bandwidth then Intel 8700

For 16core: AMD Ryzen Threadripper 1950X vs Intel 7860, $950 vs $1550.