Which is better?

[hasnol]

i already have i5 2500k and i plan to change my MOBO from asus p8z68 asus V-LX to the new one as i also upgrade my graphic to gtx 670.. this new graphic have pci-e 3.0 but my old one have only pci-e 2.0.. i know it can be reverse compatible but i don't want the bottleneck occur.. so, i need to choose the new MOBO for my system.. can somebody recommend me a good MOBO for my system.. consider the price too because i don't want to waste my money just for a MOBO.. i hope the best performance for price..

this what i'm consider to choose:

1) http://www.newegg.com/Product/Product.aspx?Item=N82E16813131837&name=Intel-Motherboards

2) http://www.newegg.com/Product/Product.aspx?Item=N82E16813157294&Tpk=ASRock%20Z77%20Extreme4-M

3) http://www.newegg.com/Product/Product.aspx?Item=N82E16813157293&name=Intel-Motherboards

or any others?

 

[akshayghai29785]

there would be not bottleneck with gtx 670 on your mobo

 

[jaquith]

Guaranteed, no bottleneck (<1%) comparing PCIe 2.0 x16 vs PCIe 3.0 x16, and most importantly your i5-2500K is PCIe 2.0 and not PCIe 3.0. So unless you plan to replace your entire PC's guts then don't waste money:
1. CPU -> Ivy Bridge e.g. i5-3570K
2. MOBO -> Z77
3. GPU

Scaling PCIe 2.0 x16 vs PCIe 3.0 x16 - http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/

Make sure you have 8GB of memory (2x4GB) for best results.

 

[larkspur]

PCI 3.0 is only available on socket 1155 with Ivy Bridge CPUs. Your 2500k won't do PCI 3.0. Nor will you see a PCI bandwidth bottleneck on a GTX 670 with PCIe 2.0 on your current motherboard. Your current motherboard and CPU are fine for a GTX 670.

 

[chugot9218]

By most accounts, even a 670 does not fully saturate a PCIe 2.0 lane, and would not be creating a bottle neck. I would say its not worth going from a z68 chipset to a z77 especially if your not upgrading the CPU.

When I first built, I found myself finding solutions for problems that don't exist , it took me a while to stop but has saved lots of money in the long run..

 

[hasnol]

thanks guys... but now i have only 8GB memory.. is it better for me if i upgrade to 16 GB memory? and how about the PSU? i have corsair CX600 V2.. is it enough to support my system? or i need to change for a new one.. but sincerely i want to save my budget but i don't want the bad system just because of little investment... lol..

 

[jaquith]

For 'gaming' 8GB is fine and for the PSU 600W is fine.

 

[chugot9218]

PSU is probably fine, might be a little low with the 670 because you are on Sandy. RAM will do you no good unless you are doing some sort of editing or memory intense programs, almost every single game will run fine with 8gb RAM as long as you don't have 10 other programs running at the same time. You are looking for solutions to problems that do not exist.

 

[jaquith]

Try the PSU calculator yourself, I checked before posting and I'm conservative (90%/90%/30% aging and a 4.7GHz OC) - http://www.thermaltake.outervision.com/Power the CX600 V2 also has the required PCIe leads (2 x 6+2-Pin) for one GPU.

 

[hasnol]

ok.. thanx guys.. if i need to upgrade, does this PSU is good enough? even i make SLI with GTX670 for the future.. http://www.newegg.com/Product/Product.aspx?Item=17-139-009&SortField=0&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=-1&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Page=2#scrollFullInfo i will
upgrade MOBO too for future..

 

[jaquith]

the CX600 V2 also has the required PCIe leads (2 x 6+2-Pin) for one GPU.

If you OC both the CPU, SLI GTX 670, add an H100 a couple more drives at most you'd need an 800W~850W PSU. The CMPSU-850TX is okay, but I prefer the following:
$133 (after 10%/rebates) Corsair HX850 http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011
or fully modular:
$156 (after 10%/rebates) Corsair AX850 http://www.newegg.com/Product/Product.aspx?Item=N82E16817139015
$166 (after rebates) SeaSonic X Series X-850 - http://www.newegg.com/Product/Product.aspx?Item=N82E16817151102

I'd cross that bridge of upgrading your PSU when needed, and if money is burning a hole in your pocket now then get a 128GB+ SSD.

 

[chugot9218]

Yea, it's best to save your money for when you actually need it as you will get better technology and pricing! I have the same problem where I find solutions for problems that aren't there, but I find it is better to address the problem as it occurs.