aggregate cpu multiple cpu vs single

[SgWRX]

i know that single threaded apps benefit from higher clock speeds (that applies to multi-threaded apps too ). i guess the trick is to find balance between app performance and rendering performance...

 

so a single 6 core cpu overclocked giving 5ghz vs. dual 6 core cpus overclocked to 3.8ghz. the aggregate is 45.6ghz vs 30ghz.

 

seems to me, the dual 6 core is going to give better cpu rendering performance.

 

(both cpu's would be hyperthreaded, so 12 buckets rendering vs 24 buckets).

 

any thoughts?

 

thanks,

[numerobis]

1. I think you will have a hard time to find a Haswell-E that does more than 4.5GHz at reasonable voltages and temps.

2. You can overclock the cache (uncore) of Haswell-CPUs, which can give you some additional performance. Maybe up to 5-7% at the correct ratio, depending on the chip and your board (OC socket)

3. Dual CPU systems can't be overclocked (only a few percent using the BCLK). Only older ones based on socket 1366 (E5-X56xx) using some special boards.

4. There is an overclockable 8-core (5960X)

Edited October 27, 2015 by numerobis