Nice article. I had not been aware of OPM before this.
Not sure that is what we are seeing here:
Michael At first glance the results suggest memory being the limiting factor - was the 5960 running quad channel ? If so, have you been able to get decently high memory speeds on the Ryzen mobos yet, or are you still running dual-channel 2133 MHz ?
Since this was mentioned twice, I have to make the obligatory rude noise and point out that if one is only running single-thread workloads the same argument could be made for even cheaper dual-core parts. Parts with similar single-core performance but fewer cores are usually going to be cheaper.
The single-thread run *is* useful as a measurement of single-core performance but cost/performance comparisons really should be done at either 8-thread or at "best results for each chip", ie 8 threads for Ryzen and 4 threads for the Xeon.
Originally posted by chuckula
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Michael At first glance the results suggest memory being the limiting factor - was the 5960 running quad channel ? If so, have you been able to get decently high memory speeds on the Ryzen mobos yet, or are you still running dual-channel 2133 MHz ?
At one thread, the upscaling test showed similar single-core performance between the Ryzen 7 1800X and Xeon E3 1270 v5 that are clocked the same, but with this Xeon E3 part retailing for almost $200 less for this quad-core + HT workstation CPU.
The single-thread run *is* useful as a measurement of single-core performance but cost/performance comparisons really should be done at either 8-thread or at "best results for each chip", ie 8 threads for Ryzen and 4 threads for the Xeon.
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