Does it make sense to buy a second GTX 770 4 gb?

Type in gamegpu in Google, open tests and watch confs from sly in games that interest you. There is just stubborn maximalism always, in terms of settings)

Take msi game 4g 970 gtx for max. settings, the game will run at a stable 50 fps. Buying another 770 will give the same result, but you will get more money.

Trestan
It seems that they said that the 970 actually has 3.5 GB of memory, and not 4 as stated.

I have 970 from msi and all 4 gigs are in place. The Witcher and GTA 5 run in Full HD with maximum settings at 50 FPS + -5. For stable 60 frames, you need already 980, but your percentage is rather weak

if there are 770 4gigabytes and 1600x900, then it’s definitely better to put the second such
current without options, you need to make sure that the motherboard has x16 and x8 + 8 operating modes for the express lines and not 16 + 4, etc.

MunchkiN 616
I want to take a monitor 1920x1080

So one GTX 770 even with 2 GB in many games still holds a stable 60 fps at FHD resolution. Well, if smoothing is reduced.

I have Grandshot
Unity at this resolution, with maximum settings and with FXAA anti-aliasing, already uncertainly goes to 60 fps, I think with Full HD resolution the fps will already be much less.

I didn't run Unity, but Far Cry 4 and Watch_Dogs with SMAA anti-aliasing and V-sync give out 50 to 70 fps. With a vertical frame, fps is sometimes limited to 30, if fps drops below 60, so I turn it off and, if possible, put "Adaptive" from the drivers. From the latter, The Witcher 3 goes to 60-40 fps with almost all the outrageous settings. The draw distance has only been reduced.
From the "powerful" also Crysis 3 went very well at maximum speed without anti-aliasing. Unless it sagged at levels with tall grass)
For me personally, it's comfortable.

Take Alamut_95
, but in some games with msaah8 it will be around 30 frames.

MunchkiN 616 Nah
, I don't see any sense in using such anti-aliasing. I usually play at my resolution with 4x anti-aliasing, I think with a resolution of 1920x1080 you can set it to 2x at all, or even turn it off.

Alamut_95

770 with 4 GB today costs a little less than 970.
Sell your card and take 970 .. There will also be money left for washing and cookies
. And yes, your 750-watt chief will work almost at the limit, at the peak the load will be under 600-650 watts, the power supply fan will make noise ..

-Sergey Viktorovich-
Then most likely you will have to take a new PSU. Is it worth changing the percentage?

Alamut_95

I repeat once again: do not take the second 770. There are no optimizations for it in the firewood already... On new firewood, one 970 will give odds to two 770s in many games.. Your chieftek is enough for both one 970 and two) )
I have an 850-watt chieftek with a margin of two 970s and 4670k in overclocking, plus a bunch of hard drives and fans .. All this eats about 550 watts at the peak.
The processor does not need to be changed. It's worth breaking it up. If the motherboard is based on the Z77 chipset, then it can be driven up to 4-4.4 GHz easily and without scalping, with a normal cooler..
Another important point: the body. What body do you have? Two cards in a layer will heat up much more in the middle case. Need a full tower case. I have two 970s when they were in a Zalman Z9 Plus case, top card up to 85g in the heat. heated, lower to 76 gr. I had to change the case to a more ventilated Fulltower. Now the upper one is heated to 78-79, the lower one to 67 gr. And now attention! 770 heats up and eats energy more than 970 and very noticeable! Temperatures in the enclosure will be even higher.

Alamut_95
If you have money for 770 4 GB and a new PSU, then sell 770 GB, and then buy 980. Also an option)
But keep in mind that it is noticeably more expensive than 970, and at the same time 15% faster. The 970 catches up and outperforms the stock 980 under normal acceleration.

-Sergey Viktorovich-
I will not take the second 770. I have a Cooler Master CM 690 II Advanced case, the cooler costs 140 mm Thermalright Macho Rev. A.
Spoiler

So you can sell your 770, take 970 and settle down on that? )

Alamut_95
The case I have Cooler Master CM 690 II Advanced

is not suitable for a layer from the 770s ... It is not blown so hot.
Therefore, take one 970. There are very good options, for example MSI GTX 970 Gaming 4G, or MSI GTX 970 100ME - I have both of these cards. I may be biased, but these are some of the best cards among the 970. There is also the Gigabyte GTX 970 Gaming G1 - also a great card, but it has 2 nuances: it is quite long (312 mm, will not fit into every case), and Her fans in idle run at 1600 rpm, which is still noisy. In load - 2200 rpm. easy.. MSI Gaming/100ME turns off the turntables at idle, and the fans work up to 1500-1600 rpm under load.
There is also Asus Strix. The card is not bad, but its power limits are limited, compared to MSI Gaming and Gigabyte Gaming.. This may affect overclocking... (however, craftsmen can get around this by unlocking the limits when editing the BIOS of the card)...
In general, such a short excursion.
PS: the cooler is excellent. Feel free to drive the processor to stable frequencies.

So you can sell your 770, take 970 and calm down on this?

well, the difference from replacement will be 40-50%, on average.
I, in due time, changed 670 in good overclocking to 970, which also overclocked decently. The difference was on average 50-60%, and where the 670 had a memory limit, the increase was more than 100%..
Then I bought a second 970.. but that's a completely different story..
PS: I, at one time, conducted comparative testing of 670 and 970. All in my blog:
http://www.playground.ru/blogs/other/geforce_gtx_670_vs_geforce_gtx_970_benchmarks-134070/

All the same, I don’t agree here -Sergey Viktorovich- 2,770
will be approximately like 980. And in heavy modes they will be ahead of 970 due to the greater total memory bandwidth and the overall larger total number of processors.
this is also evidenced by the large number of marks in the 3d mark, the
advantage of 970 zhiphos will be current in tobn rider 2013 in Wichner 3, a very controversial game in terms of optimization, and where there are few samples of special graphics - naturally, there 970 will produce faster frames because there will be no inter-GPU synchronization. and in all sorts of beta alpha indies on all sorts of unreal enzhyn 4 where usually if not found.
and also the requirements for the bandwidth of the processor are increasing, so it will most likely be close to its limit, which means there will never be a very high fps. at least there 4.5 GHz overclock.
Gifors 970 is a rather dull card. many bakers were dissatisfied with the performance in zhta5 for example. Yes, and the school logic vsezh podskazvyet that 770 will be cheaper than 970 and do not need to sell and joke about vidyuhu once a year. The 970 is only good if you consider overclocking it.
and it gets hot and noisy, of course more. you may even have to reconfigure the coolers so that they always work 50-100% in idle games, and the case and power supply will completely stretch it.

MunchkiN 616
Gifors still 970 is a rather dull card, the

theorist said))....

2,770 will be approximately like 980

and one 970 in overclocking will be like 980. At the same time, it will eat almost 3 times less than two 770 :)

many bakers were dissatisfied with the performance in zhta5 for example

In GTA 5, one GTX 970 does an excellent job. The only thing is that it sags where there is a lot of grass. But there, both 980 and AMD 290/290x cards give great drops.
As for the 970, today it is catching up with the 390x in overclocking. To call it dull, with its popularity and its performance - it seems to me very, very

reckless

. Moreover, the game is chic and very popular ..

and it gets hot and noisy, of course more. you may even have to reconfigure the coolers so that they always work 50-100%

there will be hellish temperature and wild noise .. Considering the TDP of these cards and their heating, the top heat in this case will be above 85 degrees, under 90 most likely ... The PSU will also have a hard time , in games under 650 watts, or even higher, it will eat. And for these chieftechs, after 550-600 watts of consumption, the turntable makes a very, very decent noise.

If, when buying a second 770ki, you have to change the mother and block, then the game is not worth the candle.
And if the bp and the mother are in order, then it is quite possible to take it, provided that the price is adequate. I would look used. You can take it with docks and a guarantee for reasonable money. I myself have been using two GTX 770 quads since 2013 - no problem. Everything is fine. PSU 850 watts 2009 release. The stone is on the move.
True, I've been playing one fig on PS 4 lately.