How Screwed is Intel without Hyper-Threading?

Corona is a high performance renderer and here the 8700K saw a 31% performance decrease with Hyper-Threading disabled, while the 7700K saw a similar 33% drop off. The 8700K saw a 10-12% performance drop off with Hyper-Threading disabled while the 7700K saw a 24% drop off, though the 1% low margins were similar to what we witnessed with the 8700K. For the games we tested, with a 6-core Intel CPU you will see minimal impact on performance for the most part, though 1% performance does suffer at times and on high refresh rate gaming you’ll notice the performance drop.

Source: www.techspot.com