Need help with preventing a bottleneck

[EndLeader115]

My current PC build has a amd fx 6300, a MSI r9 280x TF, and a Corsair 750w PSU. However recently I decided that I want to buy a second r9 280x because I felt like I needed more power, and I would like to know if the two r9 280x cards will slow down the fx 6300. I also thought about buying a fx 8350 instead of an extra graphics card, so please tell me if that would be a better idea. Also I am fairly new to PC building, so try not to shout at me too loud for being stupid. Thanks in advance.

[Guest]

no,

[DarkBlade2117]

no,

You sir are wrong, a single 280x at times can bottleneck a FX-6300. 280x's in Crossfire will bottleneck is CPU by a fair bit, he would gain almost no performance doing this since there will be a bottleneck.

[OAcesync]

Only way to stop bottleneck is to get an Intel CPU otherwise best thing you could do is OCing

Also wouldn't recommend 2 280X just upgrade the GPU to something better 1 single stronger GPU is better than 2 weaker GPUs

[Guest]

You sir are wrong, a single 280x at times can bottleneck a FX-6300. 280x's in Crossfire will bottleneck is CPU by a fair bit, he would gain almost no performance doing this since there will be a bottleneck.

no, a single R9 280 cannot bottleneck an Fx-6300, nor can two R9 280Xes.

 

I have tested it, and so have many others.

 

the R9 280X only requires 8 lanes, and the Fx-6300 has 16, and CFX only requires 4 lanes per card.

[DarkBlade2117]

no, a single R9 280 cannot bottleneck an Fx-6300, nor can two R9 280Xes.

 

I have tested it, and so have many others.

 

the R9 280X only requires 8 lanes, and the Fx-6300 has 16, and CFX only requires 4 lanes per card.

You may be able to crossfire GPUs on a FX-6, that does not justify whether or not it will bottleneck them.

[OAcesync]

no, a single R9 280 cannot bottleneck an Fx-6300, nor can two R9 280Xes.

 

I have tested it, and so have many others.

 

the R9 280X only requires 8 lanes, and the Fx-6300 has 16, and CFX only requires 4 lanes per card.

Lanes isn't the bottleneck it's the CPU itself

[Guest]

Lanes isn't the bottleneck it's the CPU itself

I have never noticed a bottle neck either way.

[KemoKa]

I have never noticed a bottle neck either way.

That's because you have nothing but benchmarks to gauge it by. You would be better off going to an Intel platform before adding in another GPU.

[EndLeader115]

Only way to stop bottleneck is to get an Intel CPU otherwise best thing you could do is OCing

Also wouldn't recommend 2 280X just upgrade the GPU to something better 1 single stronger GPU is better than 2 weaker GPUs

What GPU would you recommend to buy? I want at least 3gb of vram.

[OAcesync]

What GPU would you recommend to buy? I want at least 3gb of vram.

Problem is getting a better GPU wouldn't really solve the problem of needing more power you would need a better CPU first to solve your problem

[EndLeader115]

Thank all of you for replying so fast. I have decided to buy a fx 8350, and save up for a GTX 970 nitro. Maybe in the future I will get an intel CPU.

[SkilledRebuilds]

Sadly, the 8350 has the EXACT/Similar performance as the 4/6 core FX's at the same clocks in many games.

Cos.. game engines and threading/optimizations.

Overclocking can help, usually not enough.

 

If the performance is playable for you, then great, thats all you can do.

If the performance is lacklustre (if your not getting the EXPECTED 99-100% usage/performance from your GTX970) then you WILL have to use a better platform like Intel where per-core strength will get you the results you want.