HD 7870 vs HD 7950 vs GTX 570

Well definitely the 7950 from all standpoints. It's not only the fastest to start with, it has a massive overclocking potential. As for individual cards, the three brands you mentionned are reliable and you should check out reviews for the particular models you can afford.

The HD7950 outperforms the 570, and I would assume the 570 and the 7870 to perform similarly relying more on which games you play rather than their raw performances.

The 7950 out preforms all you listed and reprotected is correct the 570 and the 7870 perform similarly the 7870 has more Vram and will run cooler and power consumption is far less.

If you are able to get the 7950, you should better get the 7970.

- Fastreaction

And what about GTX 580 (Gigabyte GV-N580UD-15I)?

7970 is the fastest single gpu of Radeon at the moment. GTX 580 is a dual gpu card.

- Fastreaction

7970 is too expensive. I started from 7850 and 7950 is really maximum (but cheaper options are possible ofc   )

No, the 580 is not a dual gpu card, it is a single gpu card.


eradorius, you should get a 7950 if thats what you can afford. If you can increase your budget, get a GTX 670, its a great value card. You mention you like Gigabyte, who happen to make one of the best 670's out there.

My bad yeah its a single gpu card. 7950 should do the job but indeed a GTX 670 is recommended.

- Fastreaction

This one: http://www.gigabyte.com/products/product-page.aspx?pid=... ?

that's a top notch card it will eat a 7870/7950 and 570/580 for breakfast!  

Is my 2500k (4.7GHz) good for 670?

yes, its fine

And is there any version of 670 cheaper than Gigabyte with 3 fans? What about 2 fans version? Is good too?

None cheaper that i am aware of sorry  

of course more than enough yes you'll be fine.  

http://www.gigabyte.com/products/comparison/list.aspx?c...

Look at this comparision and help me decide which one to buy. x3 costs about 1620, x2 - about 1560 PLN (60 PLN is about $17-18)

Well both are very good GIGABYTE GV-N670OC-2GD GeForce GTX 670 is better cooling though and a toms hardware recommend although prices are different for you so i don't know if this would apply but i will post it anyway just in case it helps you decide.
For the price though, GTX 670 is the best card for the money.

The two best card for temps and performance is here:
Quote :

All-Around Best GeForce GTX 670: Gigabyte N670OC-2GD

Gigabyte's card is quiet at idle and not too loud under load. Its cooling performance at idle, during normal desktop work, and during gaming is even better than Asus' card. It ties Zotac's effort for the lowest temperature at idle, but achieves its goal at a mere 20% fan duty cycle. When we configured it to cool our card down to 70°C, its sound level was still acceptable.

This is the slimmest card in our test, it weighs the least, and is even suitable for SLI configurations on motherboards with a just a single-slot gap between 16-lane interfaces. Unfortunately, that's pretty common. Although the N670OC-2GD doesn't include the highest overclock, it's currently selling online at the same $400 price point as completely stock reference cards. And that's with the Windforce 3X cooler. That combination cannot be beat.



Source: http://www.tomshardware.com/reviews/geforce-gtx-670-tes...

And last question:
GTX 670 (Gigabyte WindForce X3) or... GTX 680 (Palit, model NE5X680O1042F )?

It's reference construction, but performance will be better than GTX 670? Both before and after OC (if possible with Palit's card)...

Price is the same btw.

the 680 preforms about 5% to 7% percent better than 670

kick-ass even though I don't really trust that site for accuracy..  

http://videocardz.com/34035/geforce-gtx-660-ti-performa...


Card is performing about 6.4% slower than GTX 670 and 14% better than HD 7950. Those were the most anticipated comparisons. Card is also faster than HD 7970, but this is only the 3DMark performance, and in higher resolutions it will be more noticeable that 2GB card with only 1152 cores will not be faster than 2048 stream processors and 3GB in HD 7970.

TweakTown will post a full review as it’s finished (it’s being written as we speak) so stay tuned for more information.

Also I will quote OBR-Hardware:

I found GTX 680, reference model, made by Gigabyte with 3 years warranty and I'm going to buy this one. In future I'll buy better cooler but now this version should be enough to play every game with single monitor. Is it better than 670 with better cooling system for similar price?

GTX 680...