In my proposal I suggested creating ImageMagick class for editing photos as faster than GD class. I had experience with ImageMagick and I was pretty sure that difference between GD and ImageMagick is huge.
Surprisingly I did some investigation and it turned out that difference is not so big.
GD Rotate: 3.3215408325195
GD Resize: 8.8823390007019
GD Crop: 3.3448140621185
Imagemagick Rotate: 7.4195408821106
Imagemagick Resize: 7.741574048996
Imagemagick Crop: 2.1027619838715
Each operation(rotate, resize, crop) was executed 100 times.
So now IÃ¢â‚¬â„¢m not sure itÃ¢â‚¬â„¢s essential to create that class. Bigger performance difference could be encountered with image effects because ImageMagick has some of them built-in whereas in GD I will have to do it in PHP, but image effects is a minor functionality.