Went with 750W 80 Plus Titanium PSU (94% efficiency) http://www.newegg.ca/Product/Product.aspx?Item=N82E16817438063 …. It'll pay itself off in 1-2 years and has a 10 year warranty.
Why still build these watt-guzzling monsters? You could get more perf/faster builds with lots of C2750's or similar.
-
-
It's not completely parallel. Chromium builds are more parallel than Android builds and there are other single-threaded loads.
-
It wouldn't really distribute well across machines in practice. It really needs to be one machine. It'll be 300W under load.
-
It's a shame there are no board (afaik) with multiple C2750's on them.
-
Even the i7-6950X is 1S, as are some Xeons. You pay a premium for 2S and then 4S for otherwise identical CPUs...
-
2S to 4S is an insane premium especially at the top end. Check out http://ark.intel.com/products/91317/Intel-Xeon-Processor-E5-2699-v4-55M-Cache-2_20-GHz … and then http://ark.intel.com/products/93805/Intel-Xeon-Processor-E5-4669-v4-55M-Cache-2_20-GHz ….
-
They also crippled the 4S one with an arbitrarily lower Turbo frequency, and AFAIK Xeon CPUs are locked so you can't raise that.
-
A really nice thing about this i7-6950X is that per-core overclocking can be used. Can likely use 4.6GHz+ with 2 cores active.
-
So it can work well for the parallel workload (currently 4.1GHz with 10 cores active and 20 threads via HT) and single-threaded.
- 2 more replies
New conversation -
-
-
For my new box I went with i7-6600U (15W) because I have some work that needs better single-core perf than C2750 can offer.
-
i7-6950X doesn't use much power at idle or low load. OCing it also only increases max turbo speeds, not base/idle clock/voltage.
-
Need 750W PSU because need more headroom for the discrete GPU when it's actually used, and PSU is most efficient at 50% load.
-
The Extreme Edition CPUs are actually quite efficient since they're really a Xeon that's binned as more efficient than usual.
-
No one runs them at low frequencies where they would beat a Xeon with the same core count substantially, but it's possible...
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.