replace gtx 970 with crossfire 7970s?

[mr_boggle]

Hi all

My uncle gifted me his old graphic cards since needed to downsize his rig since he is in the armed forces and moves often and I dont know if I should upgrade my rig to suit the new cards in crossfire or repurpose them for my dads flight sim setup. I also play online games quite often so if it will stutter a lot I wouldnt want that (especially Overwatch and at my skill level).
Thanks!
EDIT: I forgot to put down my system specs (from memory)
CPU: Intel Core i5 3470
RAM: 8gb DDR3 1600
GPU: GTX 970
PSU: Corsair RM 650 (I think but I know it has around 600 watts and is semi modular)
MOBO: Asus P8Z77m (I think dont worry about these specs in italic since Im unsure)

list of games I play all at 1080p
Overwatch
Osu!
Skyrim (With many mods)
Mass Effect 1,2 and 3
Flight Simulator X (With GEX and OrbX Scenery + high detail aircraft addons)
Jedi Knight Academy
Knights of the Old Republic
Call of Duty Black Ops 2
Black Ops 3
(plus more demanding games Ill probs buy in the future)

and some programs I use often
After Effects
Premier
Photoshop
Vegas
Animate

 

[ChumP]

I wouldn't recommend it.. you are "upgrading" to an older generation. Much higher power consumption, scaling problems(in some titles) and so on.
You are also playing at 1080p so the 970 should do mighty fine.
Try to upgrade to a single card, in the future.

 

[adragoncalledgeorge]

Your GTX 970 is better then a single HD 7970's. Honestly Crossfire or SLI are not worth it because games do not support two or more GPU's. Instead ask if you can sell your HD 7970's and then sell your GTX 970. People still buy a 970 as it is quite a good card for 1080p. With the money from all three graphics cards you might have enough money for a used GTX 1070. I think a GTX 1060 is around the same performance as a 970 so I would either get a 980 or rx 580 8gb or gtx 1070 or higher. You should get a used GPU too because then you can get a much better deal. Of course be sure it is legit and that the seller is trustworthy or get a new card if you can afford it. Good luck! Or just sell the 2 other GPUs and keep your 970 and use the money for something else in your system or whatever.

 

[PaulieVideos]

MERGED QUESTION
Question from mr_boggle : "Crossifre 7970s vs 970 for 1440p 144hz gaming"

Hi all

I have aquired some used HD7970s from my uncle who gave them to me after he had to downsize his rig due to his role in the armed forces and I am unsure if I should switch out my 970 for the 2 Radeon cards when I upgrade to 1440p (currently at 1080p). Currently my specs are suited for 1080p but I am unsure if it would be better to upgrade to a more powerful rig for 1440p

Specs (From memory):
CPU: Core i5 3470 (Considering i7 3770 or higher)
GPU : 970
RAM: 8gb DDR3 1600
PSU: Corsair 650watt (forgot model name will update this post when I get it)
MOBO: Asus PXH77 (I think will update when I get the actual model number)

I play a lot of online games as well mostly Overwatch but also a lot of story driven games like Mass Effect (havent played Andromeda yet) and open world games like Skyrim with tons of mods.

And if the 970 is a better option for 1440p gaming then I am then considering upgrading my dads flight simulator rig as he needs an upgrade from my old HD7850 and FSX is running at 20fps max

The issue might be that 2x7970 would require a lot of power, lets say around 320W~ uses single 7970.

2x amd HD 7970 will be faster than the gtx970 but you will need more power supply in the range of 1000w or more

if the multi-GPU performance scaling on the game is good, if the PSU is strong enough and if the game support multi-GPU setup, 2xHD7970 is better than a single GPU.
I would rather grab a single GTX1080 or higher tho'. IT will be less stressful, more energy efficient, etc.

I wouldnt bother. Backwards step in terms of tech and power consumption, youll only get a performance improvement if the game supports crossfire well.

I would never go for crossfire again I had 2x R9 290Xs and usually the second gpu is not even utilized or it causes bugs in applications and did I mention the 600 W needed just for the GPUs?
Stick with 1 stronger card.