Need help upgrading my PC

[Abbyfa]

Hello,
So I've had my PC for over 2 years now, and I'm thinking of upgrading it in the near future. I wanna make sure that it's worth it or should I just buy a new PC.

My specs:
CPU: Inter Core i5 3450 3.1Ghz 6MB L3 Cache s1155
MB: Gigabyte GA-H77-D3H
RAM: G.Skill Ares 2x4GB DDR3 1600Mhz
VGA: Sapphire Radeon HD 7770 GHZ Edition 1GB GDDR5
PS: Antec High Current Gamer 620W

More details in the spoiler below.
http://www.crucial.com/usa/en/scanview/79B8D21C31D926C3

Spoiler

Processor	Intel(R) Core(TM) i5-3450 CPU @ 3.10GHz
Manufacturer	Intel
Speed	3.5 GHz
Number of Cores	4
CPU ID	BFEBFBFF000306A9
Family	06
Model	3A
Stepping	9
Revision	10
Video Card	AMD Radeon R7 200 Series
Manufacturer	ATI
Chipset	AMD Radeon R7 200 Series
Dedicated Memory	1.0 GB
Total Memory	728.1 MB
Pixel Shader Version	5.0
Vertex Shader Version	5.0
Hardware T & L	Yes
Vendor ID	1002
Device ID	683D
Plug and Play ID	VEN_1002&DEV_683D&SUBSYS_E214174B&REV_00
Driver Version	14.501.1003.0
Memory	8.2 GB
Operating System	Microsoft Windows 7 Ultimate Edition (build 7600), 64-bit
Service Pack	0
Size	64 Bit
Edition	Ultimate
Version	6.1.7600
Locale	0409
BIOS	BIOS Date: 04/09/12 15:24:37 Ver: 04.06.05
Version	American Megatrends Inc. F6
Manufacturer	American Megatrends Inc.
Date	04/09/12
Display Maximum Resolution	1920 x 1080
Sound Device 1	AMD High Definition Audio Device
Driver Version	7.12.0.7719
Sound Device 2	VIA High Definition Audio
Driver Version	6.0.1.10500

So I'm thinking to add another 8GB RAM which is no problem, but the thing is I want to afford a video card that's worth buying which should be MUCH better than my current one and I mean.. So much better, so I don't feel like I've wasted a little more of a price just to get a slight difference and improvement in performance. I need it BIG. o:

I was looking into a GeForce GTX 980 card, which I can afford. I just wonder if it's compatible with my current PC build.
Also any suggestion for a decent affordable i7 CPU would be great too.

This is the site I use for shopping, http://en.ksp.co.il
But if there's any international site I can buy from other than eBay you can suggest would be much appreciated.

Thank in advance : )

 

[Matt Dobe]

In my opinion, your i5 is still okay and it would be a waste to spend so much on an i7 for gaming as you won't get much more performance from it.
8GB is still plenty and I advise you spend the extra getting a new GPU.

I would recommend the GTX 970. Will max out all your games at 60fps for a lot less than the 980. Can play 1440p at ultra detail and would be a absolutely massive improvement over the HD 7770 (this can play medium/high at the moment?)

 

[herrwizo]

^^Like the man said. Leave everything as it is and just get GTX970 or R9 290.

 

[Bakhus Mps]

Agree with the guys on the GTX970 as the single change. Games dont use hyperthreading and you wont use more than 6Gb's of ram in normal gaming conditions.

 

[maddogfargo]

Adding a 4th vote for better GPU.

Gigabyte G1 GTX 970 is my first nVidia card in 10+ years and it was a great pick. Cool, quiet and fast.

 

[Abbyfa]

In my opinion, your i5 is still okay and it would be a waste to spend so much on an i7 for gaming as you won't get much more performance from it.
8GB is still plenty and I advise you spend the extra getting a new GPU.

I would recommend the GTX 970. Will max out all your games at 60fps for a lot less than the 980. Can play 1440p at ultra detail and would be a absolutely massive improvement over the HD 7770 (this can play medium/high at the moment?)

Makes a whole lot of sense. Now I'm only left with deciding which brand to go for, but I'll figure this out after looking into it. So thanks a lot mate!

Thanks everybody!