Tests of the microcode used to patch AMD’s recent “Inception” bug don’t appear to seriously affect day-to-day performance on Ryzen processors, including gaming. ) That’s in part because AMD is rolling out new microcode for Zen 3 and Zen 4 processors, according to Phoronix, but Zen 1 and Zen 2 chips only require a kernel-only mitigation. GIMP, a Photoshop competitor, saw performance plunge by 28 percent using GIMP’s rotate tool