Same kind of cards but different parameters like power capacity

Developer Tools Other Tools System Management and Monitoring (NVML)
1

I have two ZOTAC 1080ti MINI on my machine, but the power capacity is different, any idea why?

For example, the first has Max Power Limit : 300.00 W while the second has Max Power Limit : 384.00 W.

(base) ➜ algebra nvidia-smi -q -d POWER

==============NVSMI LOG==============

Timestamp : Tue Aug 17 23:19:24 2021
Driver Version : 470.57.02
CUDA Version : 11.4

Attached GPUs : 2
GPU 00000000:01:00.0
Power Readings
Power Management : Supported
Power Draw : 30.77 W
Power Limit : 250.00 W
Default Power Limit : 250.00 W
Enforced Power Limit : 250.00 W
Min Power Limit : 125.00 W
Max Power Limit : 300.00 W
Power Samples
Duration : 6.44 sec
Number of Samples : 119
Max : 67.79 W
Min : 25.71 W
Avg : 53.25 W

GPU 00000000:02:00.0
Power Readings
Power Management : Supported
Power Draw : 9.47 W
Power Limit : 320.00 W
Default Power Limit : 320.00 W
Enforced Power Limit : 320.00 W
Min Power Limit : 160.00 W
Max Power Limit : 384.00 W
Power Samples
Duration : 85.04 sec
Number of Samples : 119
Max : 18.84 W
Min : 8.95 W
Avg : 9.39 W