which is brighter, pwm less driver or pwm driver?

I am talking about my 2 drivers, ld-25 and a nanjg 105c. The 105c has 2x 7135 added to it for a total of 3.5A max and has a mode that gives 12% or 0.42A. The ld-25 is set to 3A maximum and mid to 0.4A using this video on how to adjust current of ld-25.

I just tested the two drivers using two identical blf x6 se. I measured the current at the tail, 0.39A for the ld25 and 0.45 for the 105c but I can see that the x6 with ld-25 is a bit brighter than the one with 105c.