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On 08/23/2018 02:33 PM, Cousin Ricky wrote:
> dick balaska <dic### [at] buckosoft com> wrote:
>> I've noticed a Ghz decrease in my last couple of boxes. From 3.4Ghz to
>> 3.0Ghz and now 2.8Ghz. Certainly that will run "cooler".
>> The box is in the living room and is silent, as opposed to my i7 which
>> has dual fans that have a teeth-floating harmonic.
>
> Dual fans?
Dual fans here means actually three fans. :) One on the power supply,
one on the case, and one on the CPU. All three are different speeds and
make for some irksome high frequency harmonics.
> Does it overclock? Overclocking is a disqualifier for me; it
> increases the risk of frying the CPU without providing any long term advantages
> for a ray tracer.
Any overclocking I do is provided by official intel. I.e. the new i5
overclocks itself. "turbo mode"
model name : Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
cpu MHz : 3799.999
The thing has been running flat out for a week. I expected it to
slowdown when it got warm.
>
> But I can't live without my hyper-threading, so my next box will surely be
> another i7.
I don't know, man. I like my i7, but this new i5 is *fast*.
I reran a scene and this is the number of frames that each contributed:
name frames % of total
contrib
james 1275 32.93 # i5-8400 @ 2.8GHz (6 cores 6 threads)
cyd 789 20.38 # i7-4770 @ 3.4Ghz (4 cores, 8 threads)
joe 701 18.10 # i5-7400 @ 3.0GHz (4 cores) (2017 box)
ringo 618 15.96 # i5-4460 @ 3.2GHz (4 cores) (2015 box)
liza 489 12.63 # i5-3330 @ 3.0GHz (4 cores) (2013 box)
That scene ran for 8 days and the new i5 was only up for 6 days. I'd bet
the next scene he gets close to 40% of the total work.
--
dik
Rendered 920576 of 921600 pixels (99%)
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