My system is just over 2 years old now and in tech terms we know that should be verging on the obsolete for a gaming PC, however its holding up pretty well to modern games and demands.
Parts list:
Lian-Li PC-O9WX ATX Cube Case
Core i7-8700K 5.1Ghz (Coffee Lake) Socket LGA1151 Pre-Binned Processor
Noiseblocker NB-eLoop Fan B12-PS - 120mm PWM (1500rpm)
Asus GeForce GTX 1080Ti ROG Strix OC 11264MB GDDR5X PCI-Express Graphics Card x 2
Asus ROG SLI HB Bridge with RGB Lighting - 3 Slot
Samsung 960 EVO Polaris 1TB M.2 2280 PCI-e 3.0 x4 NVMe Solid State Drive
WD Black 4TB 7200rpm SATA 6Gb/s 128mb Cache HDD - OEM (WD4004FZWX)
Asus ROG Maximus X Hero Intel Z370 (Socket 1151) DDR4 ATX Motherboard
Microsoft Windows 10 Pro 64-Bit
Kolink Continuum 1200W 80 Plus Platinum Modular Power Supply 1
Team Group Vulcan T-Force 32GB (2x16GB) DDR4 PC4-24000C16 3000MH
ASUS ROG Horus GK2000 RGB USB Mechanical Gaming Keyboard - Cherry MX Red
Asus Spatha wired / wireless mouse
Xbox Elite series 2 controller over bluetooth
That's hooked up to a Samsung 49" 5120 x 1440 HDR 120 hertz monitor as well as an Asus XB32 4k 60 hertz monitor above.
Sounds is either by way of an Arctis Pro Wireless headset or for those ground shaking moments a Marantz AV surround receiver outputting to Bowers and Wilkins 5.1 surround speaker setup.
It quite happily plays games a couple of years old at close to 120fps on the Samsung, newer games vary between 45-60 FPS, The next job will be updating my office, replacing the desk and centering the top monitor. It looks and feels like sauna at the moment with all the pine cladding!