Mass Effect Andromeda and Crossfire. What's your experience?

Hi.

I played Mass Effect Andromeda today with the latest drivers (Relive-17.5.1) and patch 1.05.

It's my first day with this patch and these drivers so also first time with crossfire.

I have to say that i am disappointed with the experience.

FPS can be high, far over 80+ and still it stutters like it was 10 FPS.

Sometimes it's smooth and great and the next second it's a stutter fest.

With just one card activated the game is smooth and enjoyable.

I have fiddle with the settings in game and drivers to no avail.

I even tried Tessellation at 4x in driver settings.

 

1. Why is this happening? Is it drivers or the game?

2. Do you have the same experience?

3. A Solution?

 

My system.

Core I7 2600k

2X R9 290

Gigabyte GA-Z77X-UD3H

16GB DDR3 2133MHz

Samsung 850 EVO 250GB  and others for storage.

Samsung S27A950D

Corsair Newton R2 1000W

 

 

I have not upgraded to Win10 Creators Update. I have 1607.

Will that make a difference?