grmagick
AMD Phenom II X2 550 testing with a ASUS M4A785TD-V EVO (0501 BIOS) and ASUS AMD Radeon HD 4200 384MB on LinuxMint 19.3 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/2002159-HU-GRMAGICK363.
GraphicsMagick
Operation: Sharpen
GraphicsMagick
Operation: Resizing
Phoronix Test Suite v10.8.4