Reliable 1440p PC?

Nothing will give you 144+ FPS, max settings, 1440p, and do that for 10 years.

Even 4 titan X.

The reason why is primarily because games will continuously get more demanding. Look up flagship (the highest-end) GPUs from 10 years ago (2006). They could never run the latest games at 144hz at 1440p.

Also, because of the fact that Nvidia doesn't allow video card manufacturers to add custom (non-reference) coolers to the Titan X, four highly overclocked 980 Ti's would outperform four Titan X's.

Simply stacking a bunch of gpu's in crossfire or sli doesn't boost performance by the amount of cards. 2 titans don't give twice the gpu performance, 3 don't give 3x the performance etc. It just doesn't scale that well and each time you go up from 1 to 2 to 3 etc there are more and more diminishing returns. Not to mention vram doesn't stack, not all games make the best use of sli (even with 2 cards, much less 3+). The more cards you add the more complex it gets and more likelihood of issues.

Usually at some point it's better to have a single stronger card than 2 weaker cards and after 5+ years even top end gpu's are going to be mid range at best more than likely. Purely speculation since that's all that can be done until hardware and games actually materialize over the years.

Tech constantly advances, hardware, os's, games. There's no such thing as 'future proofing' and trying to dump a ton of money at once to build a pc that will last (and perform top tier) for a decade is pure folly. Upgrades periodically will always be necessary.

This is all true.

Let's think realistically here for a moment. Four Titan X cards (Potentially being Oc'd and water cooled) will run you pretty much 5 grand by themselves. If we were to pair this with a CPU and motherboard that can handle the load without being a SIGNIFICANT bottleneck to the cards, we would end up with something like this:

[PCPartPicker part list](http://pcpartpicker.com/p/fCx7kL) / [Price breakdown by merchant](http://pcpartpicker.com/p/fCx7kL/by_merchant/)

Type|Item|Price
:----|:----|:----
**CPU** | [Intel Core i7-5930K 3.5GHz 6-Core Processor](http://pcpartpicker.com/part/intel-cpu-bx80648i75930k) | $553.95 @ SuperBiiz
**CPU Cooler** | [Corsair H100i GTX 70.7 CFM Liquid CPU Cooler](http://pcpartpicker.com/part/corsair-cpu-cooler-cw9060021ww) | $109.99 @ B&H
**Motherboard** | [Gigabyte GA-X99-SLI ATX LGA2011-3 Motherboard](http://pcpartpicker.com/part/gigabyte-motherboard-gax99sli) | $162.98 @ Newegg
**Memory** | [Kingston HyperX Fury Black 16GB (2 x 8GB) DDR4-2133 Memory](http://pcpartpicker.com/part/kingston-memory-hx421c14fbk216) | $64.99 @ Amazon
**Storage** | [Samsung 850 EVO-Series 250GB 2.5" Solid State Drive](http://pcpartpicker.com/part/samsung-internal-hard-drive-mz75e250bam) | $86.75 @ OutletPC
**Storage** | [Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive](http://pcpartpicker.com/part/western-digital-internal-hard-drive-wd1003fzex) | $73.89 @ OutletPC
**Video Card** | [Asus GeForce GTX Titan X 12GB Video Card](http://pcpartpicker.com/part/asus-video-card-gtxtitanx12gd5) (4-Way SLI) | $999.99 @ SuperBiiz
**Video Card** | [Asus GeForce GTX Titan X 12GB Video Card](http://pcpartpicker.com/part/asus-video-card-gtxtitanx12gd5) (4-Way SLI) | $999.99 @ SuperBiiz
**Video Card** | [Asus GeForce GTX Titan X 12GB Video Card](http://pcpartpicker.com/part/asus-video-card-gtxtitanx12gd5) (4-Way SLI) | $999.99 @ SuperBiiz
**Video Card** | [Asus GeForce GTX Titan X 12GB Video Card](http://pcpartpicker.com/part/asus-video-card-gtxtitanx12gd5) (4-Way SLI) | $999.99 @ SuperBiiz
**Case** | [Rosewill NIGHTHAWK 117 ATX Full Tower Case](http://pcpartpicker.com/part/rosewill-case-nighthawk117) | $149.99 @ Amazon
**Power Supply** | [EVGA SuperNOVA P2 1600W 80+ Platinum Certified Fully-Modular ATX Power Supply](http://pcpartpicker.com/part/evga-power-supply-220p21600x1) | $335.99 @ SuperBiiz
**Operating System** | [Microsoft Windows 10 Home OEM (64-bit)](http://pcpartpicker.com/part/microsoft-os-kw900140) | $89.99 @ NCIX US
**Wireless Network Adapter** | [TP-Link TL-WDN4800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter](http://pcpartpicker.com/part/tp-link-wireless-network-card-tlwdn4800) | $36.88 @ OutletPC
| *Prices include shipping, taxes, rebates, and discounts* |
| **Total** | **$5665.36**
| Generated by [PCPartPicker](http://pcpartpicker.com) 2016-03-09 21:12 EST-0500 |


Now, we could come up with FIVE PCs that would last you two years a piece (The average upgrade schedule) that could play 1440p at a decent framerate. Maybe something like:

[PCPartPicker part list](http://pcpartpicker.com/p/GmtMqs) / [Price breakdown by merchant](http://pcpartpicker.com/p/GmtMqs/by_merchant/)

Type|Item|Price
:----|:----|:----
**CPU** | [AMD FX-8320 3.5GHz 8-Core Processor](http://pcpartpicker.com/part/amd-cpu-fd8320frhkbox) | $141.98 @ Newegg
**CPU Cooler** | [Noctua NH-D14 65.0 CFM CPU Cooler](http://pcpartpicker.com/part/noctua-cpu-cooler-nhd14) | $74.78 @ OutletPC
**Motherboard** | [Gigabyte GA-990FXA-UD3 R5 ATX AM3+ Motherboard](http://pcpartpicker.com/part/gigabyte-motherboard-ga990fxaud3r5) | $122.98 @ Newegg
**Memory** | [Kingston HyperX Fury Black 16GB (2 x 8GB) DDR3-1866 Memory](http://pcpartpicker.com/part/kingston-memory-hx318c10fbk216) | $64.99 @ SuperBiiz
**Storage** | [Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive](http://pcpartpicker.com/part/western-digital-internal-hard-drive-wd10ezex) | $49.89 @ OutletPC
**Video Card** | [MSI Radeon R9 390 8GB Video Card](http://pcpartpicker.com/part/msi-video-card-r9390gaming8g) | $329.98 @ SuperBiiz
**Case** | [NZXT H440 (Matte Black/Red) ATX Mid Tower Case](http://pcpartpicker.com/part/nzxt-case-cah442wm1) | $108.99 @ SuperBiiz
**Power Supply** | [EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply](http://pcpartpicker.com/part/evga-power-supply-120g10650xr) | $76.99 @ SuperBiiz
**Operating System** | [Microsoft Windows 10 Home OEM (64-bit)](http://pcpartpicker.com/part/microsoft-os-kw900140) | $89.99 @ NCIX US
**Wireless Network Adapter** | [TP-Link TL-WDN4800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter](http://pcpartpicker.com/part/tp-link-wireless-network-card-tlwdn4800) | $36.88 @ OutletPC
| *Prices include shipping, taxes, rebates, and discounts* |
| **Total** | **$1082.45**
| Generated by [PCPartPicker](http://pcpartpicker.com) 2016-03-09 21:15 EST-0500 |

I personally believe that even the Titan X will go obsolete within the next few years just as most hardware does. Just my 2 cents