Does intel core i5 6400(non k) bottleneck nvidia geforce 1070?

[gaminglabbe]

I have recently been playing a game called rust which is decently optimized. I get a decent framrate at 70-90fps most of the time (on medium settings.) and i got nvidia 960 2gb and i5 6400, My brother got almost the same specs as me but a 1070(he bought a prebuilt system.) But he doesn't get more than 70 fps on the lowest possible settings. Now my question - Does i5 6400 bottleneck 1070? It seems like it since my 960 outperforms his 1070.

 

[luckymatt42]

A 6400 will NOT bottleneck ANY video card currently on the market.

 

[TJ Hooker]

Bottlenecking won't make a better card perform worse than a weaker one. If you both have a i5-6400 and his 1070 is getting lower fps than your 960, there's something else going on. I'd guess he has his monitor plugged into the motherboard and is thus using the integrated graphics rather than the 1070.

To answer your question more generally, if you're playing at 1080p or lower with a high refresh rate monitor an i5-6400 may bottleneck a 1070, depending on the game/settings.

 

[mdd1963]

A 6400 will NOT bottleneck ANY video card currently on the market.

Except where faster CPUs with 2.0 GHz higher clock speeds on all cores with double or more threads (i5-6400 at 2.8 GHz base/3.3 GHz turbo) *will* get much higher framerates....

At 1080P, the difference would be substantial, so I'd say the GTX1070 would be held back 'substantially' compared to even the 7700K...

Only at 4k where the GPU is entirely the bottleneck would the 6400 deliver similar framerates...