Bottlenecking 2 GTX 770s on an FX6300

admetos · Oct 6, 2014

Hello,

I am looking to build my first gaming rig. I would like to be able to run three monitors, however at the moment due to budget (around £450/£500 not including a monitor) this isn't going to be possible, so I want to put together a single monitor system that I'll be able to easily upgrade to three in the future.

I've decided the AMD FX6300 is the CPU I'm going to go for as I'd like to spend more of my budget on the GPU.

I'm currently thinking something along the lines of a GTX 770 4gb for the GPU. After a bit of research, I don't think I should experience any drastic bottlenecks with this combination and the single monitor (?).

To easily upgrade to a three monitor setup, I'd like to buy another card down the line and run it in SLI/Crossfire.

What I'm worried about then is bottlenecking when running dual 770s or similar and three monitors. Will this be an issue? Would I be able to comfortably run two GTX 770 4gbs and three monitors on an FX6300? And if it is going to cause a problem, to what extent will overclocking the CPU help?

Thanks!

tiny voices · Oct 6, 2014

Yes you will bottleneck 2 770s. The severity depends on the game. Some games will have not a bad bottleneck, and some will be so bad you rerally only get 30-50% out of the second card.

What motherboard are you using?

admetos · Oct 6, 2014

I've looking at the MSI 990FXA-GD65 V2, although being honest I haven't done a great deal of research into it.

tiny voices · Oct 6, 2014

That is a fine board. I recommend the Gigabyte 990fxa-ud3. I owned one and quite liked it.

admetos · Oct 6, 2014

So realistically I should be looking at a better CPU? Or will I be able to salvage anything with a decent overclock on that board?

tiny voices · Oct 6, 2014

An overclock will help for sure,. but gaming on three monitors with dual 770s WILL be a problem even for an overclocked 6300. An overclocked 8320 would fair much better.

Outlander_04 · Oct 6, 2014

I think you should confine yourself to an FX 6300 build with a single card and single monitor

and be realistic that in a couple of years you will replace everythingexcept maybe the case and dvd drive when you have the money for an SLI rig and multi monitors

That would lower your costs right now by using one of the mb's with a 970 series chipset

tiny voices · Oct 6, 2014

That is a very good way of putting it. I 100% agree.

admetos · Oct 6, 2014

Hmm... Is it possible to go the other way and downgrade the GPU thus making better use of them as a whole? Or is something less powerful not going to be able to run three monitors well even without a tremendous bottleneck?

tiny voices · Oct 6, 2014

You NEVER want to downgrade GPU at the expense of anything. This will impact your game performance more than anything.

admetos · Oct 6, 2014

I mean start off with something less powerful, not downgrade per se by taking the 770 out of the machine and putting in two less powerful cards. I realise now there was some ambiguity in my last post!

tiny voices · Oct 6, 2014

No never start with two cards or one weaker card than you can afford. ALWAYS buy the single most powerful GPU you can. That is what you should do and forget about upgrading. Don;t worry about it until the time comes. Always build a computer for now, not the future.

Outlander_04 · Oct 6, 2014

I would not build a multi GPU rig based on an FX processor . The gpu's just do not scale well

If you want to build cheaply then build based on an i5 , and a Z97 motherboard

admetos · Oct 7, 2014

Ok, thank you. It seems I'm being a little too ambitious then!

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