Is this stable for my r9 290x?

[Hero__]

1090mhz core clock
1300 memory clock
fan speed 60
power limit 10+
never touched the core voltage
Using msi r9 290x twin frozer 4 gb

 

[mamasan2000]

Why don't you test it?
Check for artifacts and/or random crashes.
Unigine Heaven/Valley is a good GPU test. Run either test 1-2 times.