A Few concerns about this system

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UcShrek

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I am trying to build this for Xmas, I am just not sure if can work or not; Starting with the CPU I am thinking to OC it to 4.5

Is this enough to go later for eyefinity?
Will bottleneck the GPU's later?
I will be adding a 2nd GPU later, is this necessary?

At the end of the day, how would you improve this configuration to make it worth for 3x27" Monitors @ 1920x1080 / 1920x1200 and 5760x1080?

You can check the parts list here:
http://pcpartpicker.com/user/-xDesertEaglex-/saved/MPxWGX. I m just hesitating where to go as far CPU and GPU's. Thanks in advance.
 
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tiny voices
That overclock shouldn't make any real difference I don't think. Looks like this can be chocked up to poor coding being the problem. Definitely just BF4.

This will NOT happen in other games at all. The 2500k is still a VERY good CPU.

OP, the 4690k will not limit you.
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tiny voices

tiny voices

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You have an mATX board for a full sized build. Get an Atx board.

you have a CPU cooler that will not perform better than a cheaper air cooler. Change to a Coolermaster hyper 212 EVO.

Two 280x's is nothing for that CPU. YOu would run two 290x's and have no bottleneck.

What monitor do you want to play on? One or all three?

Why two SSDs?
 
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Steel_Nugget

Steel_Nugget

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The I5 4690k should be able to keep up with Crossfire R9 280x especially if its OCed. But I would like to adjust your build some. First with the Ram. If this is for gaming 1600mhz or 1333mhz Ram is fast enough and will cut off $10-$20. Next if you are planning on going crossfire you might want to look at ATX or at least a different motherboard. The R9 280x you chose looks like it would take up 2.5 slots so the second slot would be likely unusable leaving you with the last slot which is PCIE 2.0 16x @ 4x which will bring performance down slightly. Next you should get one 240gb or 256gb SSD. It will take up less space and be cheaper. You might be putting those in raid 1, but I would just recommend one drive if the data is not super important and cant be lost.
 
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Steel_Nugget

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I think he chose the liquid cooler for the small form factor, but you are right that it won't cool much better.

 
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tiny voices

tiny voices

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Both cards will work properly in the correct slots. They are only 2 slot cards that he chose. http://www.newegg.com/Product/Product.aspx?Item=N82E16814550010 IT is actually LESS than two slots just slightly. They will fit fine. I do agree about getting an ATX board though.

He has no need to overclock for no bottleneck. EVen at stock clocks the 4690k can handle WAY more than two 280x's.

 
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Steel_Nugget

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It looks to me like the card extends down more. It only takes up two of the slots in the back of the case, but the heatsink extends further down. I was saying that the CPU would most likely not bottleneck in most games, but if he OCed he would see even less bottlenecking. I know the CPU is powerful, but some games will get to 100% on the CPU first.

 
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Steel_Nugget

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When I looked at the side photo I thought I saw the heatsink extended past, it was the backplate. So my fault, but the back plate could still cause interference. In most games, close to all you will not see a bottleneck. But in large open world games such as Arma 3 you can see bottlenecks. There is not a reasonable replacement to cause less bottlenecking so I'm not saying change the CPU. I'm saying there is a possibility for a bottleneck always. For example I have put a GTX 780 in my PC and it was bottleneck slightly in BF4 by my I5 2500k @ 4.3 GHZ. My point is the R9 280x Crossfire is faster then the GTX 780 while the I5 4690k @ stock is only slightly faster then my I5 @ 4.3.

 
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tiny voices

tiny voices

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I play ARMA 3 and DayZ and never does my CPU usage go above 70% on a single core. Those games are poor-coding limited, not CPU performance limited.

Also a 4690k is like 20% better than your 2500k regardless of clocks. 22nm vs 32nm.

http://gamegpu.ru/images/remote/http--www.gamegpu.ru-images-stories-Test_GPU-Action-Lords_Of_The_Fallen-test-LordsOfTheFallen_proz.jpg Here we have a CPU intensive game. The 4670k (2-3% worse than the 4690k) beats the i5 2500k by 17% on average frame rate.

The 4690k is a decent bit better than a 2500k.

Again, he will have no bottleneck.
 
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Steel_Nugget

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In those charts the I5 2500k was at stock speeds. Here is my CPU vs yours. http://www.ocaholic.ch/modules/smartsection/item.php?itemid=1150&page=10 as you can see there is not much of a difference in most games. 32nm vs 22nm. Then in Skyrim the I5 2500ks OC brought it up to the speeds of the I5 3570k so the OC does make a difference. So by chance do you have BF4? If so play a match at 1080p Ultra on Siege of Shanghai 64 player (No Mantel) and see what kind of performance you get.

 
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UcShrek

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Very interesting discussion, and I believe its been taking into account that I am going 3x27" monitors right? I will be gaming in eyefinity mode, and the need of 3 ssd's is because I game on 2 different platforms, FPS such as BF series and Arma, and FlightSims such as LOMAC series and FSX, so I need/want them to be stored separately. FPS game rely more on GPU but FSims rely more on CPU, I am just thinking that they both gotta work efficiently.

I am switching the mother board to ATX, as far as ram, I want also do some video editing because I am starting a YT channel next year, so I am trying to get ready for it. What I think is due to overclocking and video editing I am going to need as much as possible, but that's me.
 
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Steel_Nugget

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I get your point. But since his PC will have Crossfire R9 280x later his I5 may bottleneck in a scenario like that, since those cards will be quite a bit faster than yours and his CPU not being not much faster than yours.

 
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UcShrek

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You asked me if I should get just 1 SSD for 256GB, basically I will be making 1 SSD into 2 drive units, and I will be installing my games on each drive unit, so I guess I can, however I wonder if I go this route and I partition the SSD, does this will affect performance for both drives when playing games?
 
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Steel_Nugget

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A SSDs performance is effected when the storage space is almost gone. So if you have 10gb left of a 200gb drive it may slow down, or that is what I understand from the articles I've read. So if you partition the SSD (I'm unsure on how that exactly works) it shouldn't slow down as long as its not 100% filled. Also If you are going to add a second GPU you may want a larger PSU now, since upgradeing later will then require another card and a new PSU. So if you are sure you will add another GPU get a 750w PSU now.

 
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tiny voices

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Sorry, this is not true. People run CF 290x's on i5s and have no bottleneck. I really think you are just overestimating how bottlenecks work.

I have friends with SLI 780s, CF290xs, CF7970s, SLI 690s, and have no bottle-necking at all with normal old i5s or i7s.
 
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Steel_Nugget

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I not so sure about that, considering the GTX 780 I ran in my machine was bottlenecked by a OCed I5 2500k. So how old are you talking?

 
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Steel_Nugget

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I will make a video of it about 3 or 4 hours.

 
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Steel_Nugget

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Yes. Sorry the video will have to come tomorrow for the GTX 780. But anyways for tomorrow what games do you want to see?
 
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Steel_Nugget

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I'll make the video with the GTX 780 later (If still needed) since I need to borrow it, because I don't own one. Here is BF4 64 player https://www.youtube.com/watch?v=-8svbQLfYlY&feature=youtu.be. This is with my HD 7950 @ 1000mhz. As you can see its at 95%-100% usage but so is the CPU. So with a more powerful GPU, or two R9 280x/HD 7970 it would seem like a only slightly 10%-20% faster CPU would bottleneck. Sorry for the background noise and terrible one handed recording skills.

 
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tiny voices

tiny voices

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Are you sure you do not have a faulty CPU? I know BF4 is CPU intensive, but wow, it should NOT bottleneck that card.

I feel like you have some kind of issue. I have two 7850s in CF (somewhat better performance than a 7950) and a 3570k at 4.5ghz. With the GPUs between 90-100%, I only see 70% across all CPU cores.
 
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Steel_Nugget

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How would I tell that? It runs fine on Prime95. So should I just check the score it gets in a CPU benchmark?

 
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