Training slow with GTX 1070

[Zichuanyun]

Hi, thank you for the tutorial!

I'm having issue training my own model. I'm using a GTX 1070 but only got 3.5s-4.5s/step of training speed. I think this is quite slow comparing to your reference with a GPU. Is this normal?

My setup:

OS: Windows 10
TF version: 1.5.0
Config base: ssd_mobilenet_v1_pets.config
Existing model for transfer learning: ssd_mobilenet_v1_coco_2017_11_17
CPU: E3 1231 v3 16G
GPU: GTX 1070 8G

Thank you!