Upgrading GPU or buy new system?

Hey.

I bought this computer a couple years back and i'm looking to upgrade.

It's an Acer G3-605 with a Core i7 4770 3,40gz, 16gb ram wiht a geforece 760gtx. It's some Acer-motherboard, and i'm pretty sure i need to upgrade motherboard if i decide to buy gpu.

So my question is, if it's worth upgrading gpu and motherboard on this machine or if i should invest in a completely new system? I obviously prefer upgrading GPU+Motherboard if i get the same performance during gameplay, since it's cheaper than buying a whole new system.

I've been looking at the Gf gtx 1070 8gb Strix and the Gf gtx 1080. Not sure why i'd chose one over the other?

Is there anything else i need to do besides changing motherboard if i want a new GPU? Someone talked about the power supply and that the tower probably had to be replaced because of different sizes on motherboard/gpu

Upgrade just the GPU, its cheaper (why change motherboard? It's only needed if something is not compatible, and that would be different CPU socket as all GPU use the same one.).
Difference between i7 4th gen and 7gen is very small and 16gigs of ram is plenty.
1070 for 1080p gaming, 1080 for 1440p gaming.
1080 is about 20% better than 1070 but costs more than 20% more.

(You need to say for what do you want the upgrade for and how long it should last if you want more accurate answer)

Definetly the GPU, unless you have money to throw on an unnecessary CPU+motherboard upgrade.
I have an i7 3770k with a gtx 1070. I see CPU bottlenecks in very few CPU intensive games, such as GTA 5, however in 2k resolution I don't go below 80fps, maximum settings. Unless intel does a gigantic upgrade from the 7th generation, I can keep my 3rd generation i7 for a few more years.

Thanks for the replies!

Well, someone told me, that the GPU may not be compatible with the motherboard when its a prebuild. I don't know anything about it, so i just took his word for it.
I just opened it up, and the PSU has 500w written on it. Will i need to change that?
Also, i'm unsure if a new and bigger GPU will physically fit in the tower. - I can just buy a bigger tower and move all the parts over in it, right?

Well i actually run most games decently on this atm. Had to run BF1 on low settings to have a decent FPS though.
What i'm really interessted in though, is just ultra graphics and exceptional fps. I mainly play wow and bf4 and bf1.. I'm gonna purchase a 144hz monitor as well, and as that is also why i'd like to save abit money if i can just get couple parts instead of a whole new system.

Okay, so i think i found most of the answers i needed on my own.

As far as i can tell, the motherboard is fine, as long as i don't go for SLI GPU's.
Also the 500w PSU should be enough for gtx 1070/1080.

Now my final question. I just examined my current GPU and its power connectors, since i need my new GPU to be compatible with current connectors.

One 6 pin was plugged into the current GPU, but i there was also a 2 pin and an extra 6 pin dangling around. The thing is with the two 6 pins, that its like theyre connected to each other, and im unsure, if it's actually what they call 2 x 6 pin + 2.

http://i67.tinypic.com/nmyxrc.jpg

Can anyone tell me what those connectors are called and what i need on my new GPU?
THANKS!

Oh, also how do i check if the motherboard will physically fit in a new tower? I don't know the type of motherboard. Some towers support "ATX", "mATX" etc..

Huh, 500W, I don't think that will suffice. Even if its 80%+ certified, that's like 420-450W, its too close for comfort in my opinion.
On my PC, I7-6700k + GTX 1070 (other stuff is not important so much) Max power draw = 370W (External measurement tool, not within windows/pc)
So I would take 600-650W (or more) if I were you.

Those connectors are called PCI-E 4/6/8 Pin.
You would need 8pin, 8+6 or 8+8 depending which GPU brand you take. And judging by the looks of them and PSU wattage, you will need a new PSU.

I like modular PSUs with multiple rails that way you can split big spenders.
In my case I have 2 12v, both 35A (<Which is on bigger side, they usually put 20-25Amps)
Well anyway, you could put some website where you can buy psu and how much you're willing to pay for it and we could look up which options you have.

Spoiler: Show

My PSU
http://www.ixbt.com/power/psu/photos...00/psu_011.jpg
http://www.ixbt.com/power/psu/photos...00/psu_004.jpg

144hz at what resolution?
You would need an SLI for that, maybe one 1080Ti would suffice, we'll have to wait and see.

Quote:

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Originally Posted by Loberg

Okay, so i think i found most of the answers i needed on my own.

As far as i can tell, the motherboard is fine, as long as i don't go for SLI GPU's.
Also the 500w PSU should be enough for gtx 1070/1080.

Now my final question. I just examined my current GPU and its power connectors, since i need my new GPU to be compatible with current connectors.

One 6 pin was plugged into the current GPU, but i there was also a 2 pin and an extra 6 pin dangling around. The thing is with the two 6 pins, that its like theyre connected to each other, and im unsure, if it's actually what they call 2 x 6 pin + 2.

http://i67.tinypic.com/nmyxrc.jpg

Can anyone tell me what those connectors are called and what i need on my new GPU?
THANKS!

Oh, also how do i check if the motherboard will physically fit in a new tower? I don't know the type of motherboard. Some towers support "ATX", "mATX" etc..

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Pretty much all motherboards are ATX (name represents size of the motherboard [and where holes are located], all mATX boards can fit in mid tower case since it supports ATX boards, but if case doesn't support mATX board you would be missing some holes),
https://qph.ec.quoracdn.net/main-qim...7eccff0abd3721
but if you want to be sure you just check up which size is your motherboard and which size case supports, like for example :
http://www.gigabyte.us/Motherboard/G...g-K7-rev-10#sp
Form Factor ATX Form Factor; 30.5cm x 24.4cm
https://www.nzxt.com/products/phantom-820-white
Motherboard Support E-ATX, XL-ATX, ATX, MICRO-ATX, Mini-ITX

You have a pretty good system, I won't change it, just upgrade GPU if you really need it.