Windows 10: I game alot..what component makes me lag? memory, graphcard/videocard

With AMD CPU's using AMD Graphics cards they have a wide bandwidth so they can compete with the "Intel" competitors, as I have said before which I will repeat here "this is from experience rather than theory though"

 

When talking abut bandwidth of graphic cards it's the bandwidth of GPU to VRAM and it's in no relation to CPU. Intel processors control bus lane for PCIe while on AMD platform it's MB and north bridge that are in control.

 

Well lets explain it with practical experience & not theory then - about 4 years ago I purchased from new a VTX 7870 GPU which I now know to be 384-Bit, this card ran NFS - The Run at High settings with a real smooth motion with no lag in multiplayer, I sold it before I realised what a great gpu it really was.

Last year I purchased a R9 380 256-Bit Graphics card I played NFS - The Run as a benchmark & it would not even plays smooth at low settings with stutter & they are supposed to be the same GPU ?

Thus proving my practical experience & in a few days will prove it again with another GPU a 7970 384-Bit

 

That is why i said I had no idea how he got this is related to an AMD CPU And as far as your GPU comparison goes that probably had nothing to do with the bandwidth.