Intel Hyper Threading Technology uses resources efficiently, enabling multiple threads to run on each core and increasing processor throughput. But this can have a negative effect on some game games. I have made a comparison with the intel 5930K with hyper threading enabled and disabled to see how the performance differs. Check out this video to find out my results.
Full system specs
Intel i7 5930K overclocked to 4.5Ghz
MSI Gaming 7 X99A
Nvidia GTX 980Ti Inno 3D Reference
Nvidia GTX 980Ti Zotac Referecne
Drivers 361.43
32GB of Corsair Vengeance 2666Mhz DDR4
OCZ Agility 3 120GB SSD + 2TB Seagate Barracuda Storage
Corsair Graphite 780T Black
Corsair HX 1000i PSU
Corsair H110i GT cooler
Samsung 850 EVO 500GB
Samsung SM951 M.2 128GB PCIe 3.0 SSD
OCZ Agility 128GB SSD
Toshiba 3TB HDD