My last desktop computer was built around two aquarium chillers. This is a device that is designed to cool water in fish tanks for those that like to keep cold water fish in room temperature areas. Each one is the size of a small refrigerator.
The system stayed a chilly 39.5 degrees Fahrenheit under max load, and overclocked the i7 3970x to 5GHZ, stable. The quad Geforce Titan cards, ran at 1400 mzh, stable.
I think I know a thing or two about building a custom computer, but I think you missed my point.
I said that the Mac Pro is the best and least expensive high end gaming computer. You countered by saying that you can build a 4x SLI custom rig. And then what? No game currently available or reasonably expected that takes advantage of that. What are you going to do with your 4x SLI 780 GTX? Run benchmarks for fun?
The Mac Pro in D700 config has enough horsepower to run any game on ultra. And more importantly it's the most cost effective way to do so over the long term. Just buy the D700 config and sell it in 1-2 years for the D900 config, you'll take a $850 hit. That's the least expensive way to run window games on max setting over several hardware cycles. And that makes the Mac Pro the best high end gaming PC in my mind. Even beating out simply replacing the Mobo, CPU, and GFX cards every few years on a DIY PC.
You cannot disagree with the logic, because the long term costs of competing desktops, DIY desktops, and Mac workstations are known variables.
On top of that the Mac Pro has other advantages such as Apple's fantastic design, PCIe SSD's OS X etc.
Overclocking without insane cooling nets around 10-20% performance, which doesn't really effect the cost/performance equation that favors the Mac Pro.
Cost performance advantage?
Your advocating that a $4000 dollar machine that competes with a single 780ti ??? You are aware how easy it is to add PCI SSDs to pcs right?
$850 loss over 2 years , are you crazy??? I can get a 400 discount just through work!
Sorry but I struggle that you have the ability to run a water chilled PC, yet do not understand that current games do take advantage of 4xsli. Try metro mate. And for someone that build a watercooled PC, the Cooling on then nMP should be ringing all types of alarm bells....
The issue with SLI configs is that they do not scale well the more you add. Optimum is 2 cards for scaling, 3 you get a considerable drop of for performance /cost and 4 little benefit. If you have the money , roll 4 cards. Depends on the game, benefit will vary, but it's rubbish current games do not take advantage.
Your best setup is in fact a single very fast card! Not going to bother going into the details of why crossfire/SLI configs have cons, google it. The D700 is underclocked.
The 7970 series did not play nice with crossfire, can you guess on what architecture the D700 is based on?
Also on some games Crossfire does not scale well at all. Back to my single card argument .
So what you think is the best gaming system currently available to purchase , at a mere $4000 for the base system, quad with D700. I call shenanigans. It's the most overpriced gaming system and you would be crazy to buy it for gaming.
If gaming always, always gets one fast gpu over 2 in crossfire.
The nMP is a workstation that as a secondary has decent gaming performance . Don't delude yourself that this is an a amazing gaming system .
Not to mention crossfire only works under windows, so your buying the best apple has on offer to game under windows...... Hmmm , get an Alienware if you cannot build your own.
FYI. The dual Titan setup you claim to have is superior to be nMP. The Titan is so much better than the D700 , SLI Titan is much better than crossfire D700. 5ghz v stock Xeon .... Do the maths...