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Will a amd 8320 bottleneck 2x gtx 770's?

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February 2, 2014 4:10:12 AM

So I was planning on getting one gtx 770 but then pushing up to 2 after a while. What i wanted to know is whether or not the cpu will be able to handle it! If not could you possibly leave a suggestion for a CPU that wont bottleneck both of the cards? From what I have seen the fx 8320 is the best cpu for around £100 i've seen yet. It has to be in that price range though!

More about : amd 8320 bottleneck gtx 770

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February 2, 2014 4:12:34 AM

not too much, and you can overclock it anyway if you get a custom cooler for it. so if it's value you want go for it.
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February 2, 2014 4:44:45 AM

First it all depends of the game title, resolution and settings, generally this FX is awesome buy for the money. Just few buts:
1) 125W TDP is just a nightmare... so overclocking without a high end cooler will be ridiculously hard.
2) For a bit more cash you have for example Xeon E3-1220 V2 which has half of that TDP, will be faster in vastly more applications especially games.
3) If you consider overclocking, probably almost any 4 core i5 will be faster that that Vishera.
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February 2, 2014 6:42:02 AM

Ra_V_en said:
First it all depends of the game title, resolution and settings, generally this FX is awesome buy for the money. Just few buts:
1) 125W TDP is just a nightmare... so overclocking without a high end cooler will be ridiculously hard.
2) For a bit more cash you have for example Xeon E3-1220 V2 which has half of that TDP, will be faster in vastly more applications especially games.
3) If you consider overclocking, probably almost any 4 core i5 will be faster that that Vishera.


Mainly battlefield 4 @ 1280 x 720 at ultra settings. Also how much do this high end coolers cost and how hard are they to install and regulate
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February 2, 2014 6:50:00 AM

at 720p a GTX 770 must be waaaaaay more powerful then needed, as that card is designed for twice the resolution (1440p) at ultra details.
High end Air cooler cost around £50, High end AIO coolers around £100, Custom watercooling is waay more than that.
I have a Xigmatek Dark Night 2, in the cold UK I get 33C at 100%, with no OC, with 3 fan case setup
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February 2, 2014 7:03:22 AM

Nefos said:
at 720p a GTX 770 must be waaaaaay more powerful then needed, as that card is designed for twice the resolution (1440p) at ultra details.
High end Air cooler cost around £50, High end AIO coolers around £100, Custom watercooling is waay more than that.
I have a Xigmatek Dark Night 2, in the cold UK I get 33C at 100%, with no OC, with 3 fan case setup


That's a lot of terms I dont understand. Let's say I get this monitor:
http://www.amazon.co.uk/BenQ-GW2255-21-5-inch-Monitor/d...
and run fullsceen. 1920x1280, will at stock speeds the fx 8320 be able to handle both GTX 770's? Will it run too hot if I overclock the CPU? How effective are the coolers at allowing me to OC and how difficult are they to configure + install. I'm from UK too! :D 
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February 2, 2014 7:47:44 AM

okay, I rephrase it :D 
your monitor is 1920*1080, usually referred to as a 1080p screen.
The GTX 770 was designed to run games on 2560*1440 (referred as 1440p or UHD) screen on ultra settings, so it should not have any problem at these resolution (except a few games like Crysis 3, but it was designed t be beautiful and make the best computers cringe)
If I were you first I would get the monitor then I will see, if it can play the games that you want on the resolution that you want fluently.
Coolers:
There are cheap coolers, but they are generally a no-no for overclock, as FX 8320 makes loads of heat overclocked, Except 212 EVO. You can find mid and high range air coolersfrom£30 to £50 and over, although you will need a massive case for them and low RAMs, as if they are tall most of the highest end coolers wont fit as they are massive
Personally I use a Xigmatek Dark Knight 2 air cooler, it was £32 posted from Amazon, from 62 degree it brought the temps from 62 to 33, at idling it is 15, so ambient :D 
You can have All In One (hence the AIO name) is a premade water cooler, like Cooler Master Seidon 120V or 240M. You just need to preinstall them and thats it, they work, although the cheaper coolers can be beaten with high end air coolers without the risk of leaking.
Custom waterloops are very expensive and complicated
AIO and air coolers are fairly easy t install, although the high end double radiator and fan air coolers can cause headache as they are huge
Pretty effective, you could reach (maybe, depends on your chip) with a highend cooler something like 4.5 or so I reckon
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February 2, 2014 10:46:29 AM

@ Nefos you didn't say anything about what is cooling that "Xigmatek" (is it an advert or something), If its 70W core i5 then how do you even compare it to twice as much TDP on Vishera. Also I'm not sure what is a max power supply from AM3 socket, since ~130W is already a large number, it can be as hard as risky tweaking even more from a hot unit already.

I'm just saying, as much as i love AMD for their historical innovations, now their processors are just cheap and power hungry as hell, they are worth the computing power/price but not computing power/wat.

And back to the topic, I'm quite sure those 2xGTX will get bored in pair with this CPU... it would be probably fine with one, but 2 of them is an overkill. Additionally i cant even think how much of PSU power you need only for this 3 units... CPU: 125W, GPU: 2x230W, 585W raw power....
Btw are you serious with that 720p on BF4, thoese 2 cards will drag it at 1080p with ultra settings @ no spike bellow 60fps and probably avg like 100.

But 2 those cards with that, let be honest mid class CPU, is like putting a 1000 hp engine into a VW Golf.... you can have it but it will blow your tires faster than you can afford buying a new one. Its simply not optimal setup.
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February 2, 2014 1:11:00 PM

Ra_V_en said:
@ Nefos you didn't say anything about what is cooling that "Xigmatek" (is it an advert or something), If its 70W core i5 then how do you even compare it to twice as much TDP on Vishera. Also I'm not sure what is a max power supply from AM3 socket, since ~130W is already a large number, it can be as hard as risky tweaking even more from a hot unit already.

I'm just saying, as much as i love AMD for their historical innovations, now their processors are just cheap and power hungry as hell, they are worth the computing power/price but not computing power/wat.

And back to the topic, I'm quite sure those 2xGTX will get bored in pair with this CPU... it would be probably fine with one, but 2 of them is an overkill. Additionally i cant even think how much of PSU power you need only for this 3 units... CPU: 125W, GPU: 2x230W, 585W raw power....
Btw are you serious with that 720p on BF4, thoese 2 cards will drag it at 1080p with ultra settings @ no spike bellow 60fps and probably avg like 100.

But 2 those cards with that, let be honest mid class CPU, is like putting a 1000 hp engine into a VW Golf.... you can have it but it will blow your tires faster than you can afford buying a new one. Its simply not optimal setup.



Oh yeah, sorry

I have an FX 8320 stock clocks.

After 2 seconds of Googleing
http://www.pureoverclock.com/wp-content/uploads/2012/10...
it is an air cooler, not a very high end, with one fan. and it cools nicely

Max power.... what? sorry, I do not understand that... power supply sentence..
How much power can it draw from the motherboard?
I read 170W OC numbers before
Although yeah, a mobo with good VRM-s are essential for AMD (and both Intel) overclock

Well you are right, but until wattage is cheap, especially if you do not run you CPU at 100% load, there will be no measurable difference, although I must admit, Intel above i5 gets everything.

what about the wattage? you can buy PSU with 750W/1KW/1200W hell, even with 2KW

For your last sentence
http://www.youtube.com/watch?v=vxG1PFHOpI8

If constructed well, then no

I reckon with overclock that CPU could handle 2 GTX 770s in 720p gaming
Maybe not in 3x1080p, but it is not the question now.
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February 2, 2014 11:02:21 PM

Nefos said:


For your last sentence
http://www.youtube.com/watch?v=vxG1PFHOpI8

If constructed well, then no

I reckon with overclock that CPU could handle 2 GTX 770s in 720p gaming
Maybe not in 3x1080p, but it is not the question now.


L'art pour l'art is what i meant with this metaphor, you can brute-force everything, but thats far from being optimal solution, especially if its about not a very demanding resolution as 720p.
Btw the lower resolution the higher CPU overhead its more about code optimizations that GPU power.... but why we even drag the further talk, he have the answer already.

So back to the topic, if you are going to put another GTX there, the cpu might have some hiccups if you consider those 2 cards being able to be fully utilized. Obviously I'm talking about stock frequency.


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