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'Bottlekneck' on 2x r9 290 and 8320??

theaterix

theaterix

theaterix

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So ive been looking round all over the place and ive been told, and found, that if i get another r9 290 and i go to 4k (hence the extra 290) i will be bottleknecked to hell and it will be like the 2nd card isnt there :(
I want a few opinions on this, as im a bit sceptical about it all... I know a fair bit, and a mid-high end chip like the 8320 shouldnt surely be bottleknecking 2 r9 290s... and also ive got a 4.3ghz OC on aswell, and i can go higher if needs be, just like keeping my stuff cool, as i hate the temps being high lol

Thanks for reading and look forward to seeing your replies :)
 
Whoever told you that was talking out of their arse. At 4k you probably won't get any bottleneck with an 8320 as it'll be FAR more GPU intensive. There may be some games that will bottleneck slightly with 2x r9 290's at 1080p, at 4k there should be no bottleneck or at most a very small bottleneck.

The level of the bottleneck will depend on how well optimised a game is. A game such as Sniper Elite 3 should not bottleneck at all at either 1080p or 4K due to it being really well optimised, however a game such as Watch Dogs which is horribly optimised will probably bottleneck a fair amount. Most games will not be bottlenecked by an 8320 at 4K, so you have little to worry about.
 
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You can easily get that chip up to around 4.8Ghz which will reduce any bottlenecking.

As above, at 4k everything is much more GPU bound so any bottleneck will be less apparent. I used to run 2x 290xs with my 8350 @4.8Ghz and it was very game dependent as to whether I got any bottleneck at 1080p, let alone 4k. BF4 was amazing, I got as many fps out of my AMD rig as my intel rig. But WoT and Arma were another story - they need strong single threaded performance (and WoT doesn't support Xfire...)

Prices on the 290s are so cheap, especially when you get like 5 games with them at the moment, it seems silly not to even for a tiny performance boost!
 
theaterix said:
So ive been looking round all over the place and ive been told, and found, that if i get another r9 290 and i go to 4k (hence the extra 290) i will be bottleknecked to hell and it will be like the 2nd card isnt there :(
I want a few opinions on this, as im a bit sceptical about it all... I know a fair bit, and a mid-high end chip like the 8320 shouldnt surely be bottleknecking 2 r9 290s... and also ive got a 4.3ghz OC on aswell, and i can go higher if needs be, just like keeping my stuff cool, as i hate the temps being high lol

Thanks for reading and look forward to seeing your replies :)
Click to expand...

Whoever told you that advice has clearly never gamed at 4K. You'll be fine and if in doubt, stick a nice big overclock on your cpu. At 4K the bottleneck generally moves to the gpu in any game worth its salt.
 
I told him, he also never stated he was gaming @4k....
It's the bloke running a CX750M. At normal 1080 both cards will choke the 8320, if running stock (refer to thread above - context is everything)
 
Tonester0011 said:
I told him, he also never stated he was gaming @4k....
It's the bloke running a CX750M. At normal 1080 both cards will choke the 8320, if running stock (refer to thread above - context is everything)
Click to expand...

Fair enough tone, I remember now. We both recommended the SuperFlower. :D

EDIT

And yes, there would be a bit of a bottleneck at 1080P with that setup but definitely not at 4k!
 
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Tonester0011 said:
I told him, he also never stated he was gaming @4k....
It's the bloke running a CX750M. At normal 1080 both cards will choke the 8320, if running stock (refer to thread above - context is everything)
Click to expand...

Worst case scenario @4K you will get a very noticeable increase in performance.

How much increase it is difficult to be precise as there are so few AMD users on 4K. Having said that I have seen one review somewhere on the net where a guy running an AMD CPU was getting better performance than another setup running a 4770k. I think the reason for this is the 4770k is very good at dealing with bottlenecks but this is no longer a problem @4K with lower fps.
 
cwgk91 said:
You can easily get that chip up to around 4.8Ghz which will reduce any bottlenecking.

As above, at 4k everything is much more GPU bound so any bottleneck will be less apparent. I used to run 2x 290xs with my 8350 @4.8Ghz and it was very game dependent as to whether I got any bottleneck at 1080p, let alone 4k. BF4 was amazing, I got as many fps out of my AMD rig as my intel rig. But WoT and Arma were another story - they need strong single threaded performance (and WoT doesn't support Xfire...)

Prices on the 290s are so cheap, especially when you get like 5 games with them at the moment, it seems silly not to even for a tiny performance boost!
Click to expand...

Yeah, chances are I wouldn't be playing arms or dayz for that matter as they are both alpha and even my single 290 dies lmao
But I will probably be playing bf4 and crysis 3 and far cry 4 and GTA 5, I've chosen to tell you these and not the rest is I know the rest aren't intense at all...so they will be fine.. But I don't know what they will do with dual 290s
Basically league of legends and cs:go both of which I imagine they are very well optimised!
 
@theaterix

Overclock the 8320 @ 4.8Ghz, get a second 290 and see how it goes. Worst case if not happy you can replace the CPU.

The CPU performance going to be the same at 1080p as at 4K on the significant majority of the games. And Mantle games you do not care about the CPU.....

cwgk91 said:
But WoT and Arma were another story - they need strong single threaded performance (and WoT doesn't support Xfire...)
Click to expand...

WoT is a damn dog of code. First of all is DX9. Second single thread process.
On my AMD 8350@5Ghz it was crawling, but not on my i7.

Same applies for graphic card power. Somehow on my GTX780 was working fine with everything maxed out and factory overclocks. (1106).

On the 290X (half my 295X2) at 1100 overclock, I get 30% LESS fps.
(1080p resolution).

On contrary War Thunder is pretty impressive on movie settings using the damn system properly, generating 100fps+ and is DX11.
 
At 4K, the bottleneck isn't really going to exist, but for arguments sake, the FX8320 can't really be considered anything more than a mid range chip.
 
AMDMatt said:
Fair enough tone, I remember now. We both recommended the SuperFlower. :D

EDIT

And yes, there would be a bit of a bottleneck at 1080P with that setup but definitely not at 4k!
Click to expand...

Yeah that's me haha I'm getting the 290 the super flower PSU and the monitor at christmas :) its just, I would got 1440p but I'm just not simple like that ;) and plus 4k will cover me for a long long time where as 1080p may only be the standard for 1-2 years 4k will be the best for 4 or so and even then it will be far above standard... So I think its a good option, but yeaah
 
theaterix said:
Yeah that's me haha I'm getting the 290 the super flower PSU and the monitor at christmas :) its just, I would got 1440p but I'm just not simple like that ;) and plus 4k will cover me for a long long time where as 1080p may only be the standard for 1-2 years 4k will be the best for 4 or so and even then it will be far above standard... So I think its a good option, but yeaah
Click to expand...

Well with 2x290 cards, a 4K monitor and that 1000W SuperFlower PSU I'd say you're all set for a nice gaming experience. :)
 
IMO now is not a good time to jump on the 4K wagon.

Firstly the cost on graphic cards require to game on 4K comfortably simply cost too much...ideally you'd want 3 high-end card at least instead of 2, and at which point when there's enough GPU grunt, the 4GB vram might become not enough.

Also considering from the pricing for 4K monitor...like the 4K TV, the price was quite high at the beginning, but they quickly fallen due to not enough people buying, and too many manufacturers launching too many 4K products. If you wait till same time next year, most likely not only you would be able to get two cards at the same price that would have more vram that can deliver the same performance of 3 high-end cards right now...not only that, the chances are with more 4K monitors on the market, the average pricing of the would probably fall even lower- they are may be £450-£550 on average right now, but next year they may probably be in £300-£350 range.
 
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Panos said:
@theaterix

Overclock the 8320 @ 4.8Ghz, get a second 290 and see how it goes. Worst case if not happy you can replace the CPU.

The CPU performance going to be the same at 1080p as at 4K on the significant majority of the games. And Mantle games you do not care about the CPU.....



WoT is a damn dog of code. First of all is DX9. Second single thread process.
On my AMD 8350@5Ghz it was crawling, but not on my i7.

Same applies for graphic card power. Somehow on my GTX780 was working fine with everything maxed out and factory overclocks. (1106).

On the 290X (half my 295X2) at 1100 overclock, I get 30% LESS fps.
(1080p resolution).

On contrary War Thunder is pretty impressive on movie settings using the damn system properly, generating 100fps+ and is DX11.
Click to expand...

I'm not sure if my 8320 is a good overclocker as when I prime95 it 1 of the workers fail at 4.3 and the temps stay at like 56.. And when I do it with aida64
It runs nicely around 50 degrees, but after 20-30 mins I look at the usage chart and there is a dip but it lasts for a second and goes straight back up but its not dropped any clocks or anything so I imagine its just the program...
I've got a corsair h100 so its being kept cool... Just help me out if you can, as it would be much appreciated :) and with 4k, how good does it look directly compared to 1080p and 1440p from personal experience?
And if I do all of this with the new PSU and the 290 and the monitor do you think I could achieve 60 fps on 4k on max settings?
 
Marine-RX179 said:
IMO now is not a good time to jump on the 4K wagon.

Firstly the cost on graphic cards require to game on 4K comfortably simply cost too much...ideally you'd want 3 high-end card at least instead of 2, and at which point when there's enough GPU grunt, the 4GB vram might become not enough.

Also considering from the pricing for 4K monitor...like the 4K TV, the price was quite high at the beginning, but they quickly fallen due to not enough people buying, and too many manufacturers launching too many 4K products. If you wait till same time next year, most likely not only you would be able to get two cards at the same price that would have more vram that can deliver the same performance if 3 high-end cards right now...not only that, the chances are with more 4K monitors on the market, the average pricing of the would probably fall even lower- they are may be £450-£550 on average right now, but next year they may probably be in £300-£350 range.
Click to expand...

Well for the Samsung OR the Acer one I'm getting, I can get the samsung for 310 or the Acer for 350 so... That's the cost out of the window and graphics card wise there is 980s already and the 390(x) will be released which will obviously be better than my 290 but I'm not going to pay another 600+ just for 10-15 fps more (average prediction)
 
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