fastest Xeon CPU for one-threaded programs

[chiu]

Which Xeon CPUs is the fastest for one-threaded programs? I don't need a multicore CPU as my program cannot be paralleled. Thanks.

 

[Zepher]

this one, https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+E3-1280+v6+@+3.90GHz&id=2988

https://ark.intel.com/products/97475/Intel-Xeon-Processor-E3-1280-v6-8M-Cache-3_90-GHz

the i7 7700k is faster at half the cost. do you need a Xeon proc?

this i3 is faster than that Xeon and only slightly slower than the 7700k and is only $169,
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i3-7350K+@+4.20GHz&id=2930

here is the list of processors and their single thread rating,
https://www.cpubenchmark.net/singleThread.html

 

[chiu]

Thanks. I need ECC RAMs too and therefore I want to get a Xeon CPU. Will there be a faster Xeon CPU in the near future?

 

[Zepher]

Thanks. I need ECC RAMs too and therefore I want to get a Xeon CPU. Will there be a faster Xeon CPU in the near future?

well, this one just came out, so probably not in the next 9 to 12 months, would be my guess.

 

[Aluminum]

Depending on what instructions your program likes and how much it benefits from memory bandwidth, a cherry-picked unlocked haswell (E5 v3) might technically be faster. You could get one a good bit above 4.2 and skylake IPC improvements vary a lot (sometimes 0) based on instruction type.

But yeah, an i3 or similar would be way way cheaper. I wonder about your need for ECC, you could literally have 2-3 practically as fast systems doing the same work for the cost of building a top-bin E3 w/ ECC. E5 would be an even worse value.