Disclaimer: I badly want to dump Intel and go AMD. But are the conditions right?
The AMD 3950X has 16 PCIe lanes, right? So for those of us who have multiple adapters such as RAID cards, USB or SATA port adapters, 10G NICs, etc, HEDT is the only way to go.
Someone once told me "No one in the world needs more than 16PCIe lanes, that's why mainstream CPUs have never gone over 16 lanes". If that were true the HEDT CPUs would not exist.
So we can say the 3950X destroys the Intel HEDT lineup, but only if you don't have anything other than ONE graphics card. As soon as you add other devices, you're blown.
The 3970X is $3199 where I am. That will drop by $100 by 2021.
The power consumption of 280w will cost me an extra $217 per year per PC. There are 3 HEDT PCs, so an extra $651 per year.
AMD: 1 PC @ 280w for 12 hours per day for 365 days at 43c per kilowatt hour = $527.74
Intel: 1 PC @ 165w for 12 hours per day for 365 days at 43c per kilowatt hour = $310.76
My 7900X is overclocked to 4.5GHZ all cores. Can I do that with any AMD HEDT CPU?
In summer the ambient temp here is 38 - 40 degrees Celsius. With a 280mm cooler and 11 case fans my system runs 10 degrees over ambient on idle, so 50c is not uncommon during the afternoons on idle. Put the system under load it easily sits at 80c and is very loud.
With a 280w CPU, how can I cool that? The article says that "Intel still can't deal with heat". Errr... Isn't 280w going to produce more heat than 165w. And isn't 165w much easier to cool? Am I missing something?
I'm going to have to replace motherboard and RAM too. That's another $2000 - $3000. With Intel my current memory will work and a new motherboard will set me back $900.
Like I said, I really want to go AMD, but I think the heat, energy and changeover costs are going to be prohibitive. PCIe4 is a big draw for AMD as it means I don't have to replace again when Intel finally gets with the program, but the other factors I fear are just too overwhelming to make AMD viable at this stage.
Darn it Intel is way cheaper when looked at from this perspective.