Low gpu usage and stuttering Sapphire rx 580 nitro+ 8gb

[maamoun123]

I have low gpu usage and stuttering when i do the benchmarking i see that the gpu usage is 99% then it goes to 0% to 30% to 60% ..... etc (not stable)

My specs
4gb ram
Cpu I5 3340
Hdd 320
500w
Motherboard msi h61

 

[norcalsc]

You would really benefit from more RAM