Which Graphic card to buy for my system and what to do with the old one ?

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AspV

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Oct 7, 2014
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Hi everyone,

I've had a 2 years old laptop Qosmio Toshiba, i7-3630qm, 12gb ram, gtx 670m, 1to partitioned hdd, Windows 8 64-bit.
It got through most latest games without much issues during these two years, I even ran the latest Shadow of Mordor with it at about medium settings with a decent 40-45 fps.
But I wanted to record some gaming sessions and while this is not the issue at hand, my hdd's not being able to read the game and write the video at the same time caused huge sync issues in the recorded files which led me thinking I needed a more powerful pc and preferably a desktop one. In which i will integrate ssd's at some point but its not my main concern at the moment.

Long story short, I got a desktop pc: i5-3570k, 12gb ram, gtx 650 1gb, 1to and 500gb hdds's, Windows 8 64-bit.
I should mention that the tower's casing is quite big has lot of empty space and a 3 fan cooling system.
While in the store i looked at the specs of that gtx 650 card (it was the most advanced gpu in the store, which led me to confusion) and for some reason it seemed to me that it was quite an upgrade over my laptop's gtx 670m's but it turn out that at same settings and same resolution the laptop actually manages to crank up a little more fps while interestingly, the desktop has a lower fps count (about 3-4 frames lower at medium settings) but it maintains it a much steadier pace.
Anyways, shadow of mordor's advance video settings shows in big the amount of dedicated memory to the gpu. The Laptop shows 3072mb gddr5 + 6086 mb ram system shared, while the Desktop shows 1024 mb gddr5 + 3072 mb ram system shared...
From what I understood so far, you cannot increase dedicated ram of a dedicated gpu, its hardware based, and system shared memory is a value defined by the os based on needs and available ram.
1) I do understand why that gtx 650 has less dedicated ram, it seems it was one of the cheapest option when it came out 2 years ago, so i'm no longer surprised, but i do not understand why even though the two pc's have the same available ram (12gbs), the lap top has dedicated twice as much ram to shared system memory. Is it because of the ram type, maybe some are not compatible to be shared? Also, would you say it is the difference in technology within the two cards that enables the laptop to perform better, or does the ram play a more important part in this case ?

Thats when i started to look into over clocking, thinking I could change the system shared ram and than slowly learn through overclock tweaks to solve my gtx 650's performance issues, but from what I understood, the main issue is that the card is not really suited for last generation games, even if overclocked, and even less to record in 1080p at the same time. Can anyone confirm that ?

If that is the case, I intend to upgrade the gpu, I want to do it myself but i don't have much experience with adding hardware except for ram which is quite simple.
Now I read somewhere during my research that it is possible to have a main gpu for normal usage and another one (the gtx 650 was used as an example as the secondary one) dedicated to some tasks (like processing physix'). Since I already have this gtx 650 i'm thinking why not try the same thing. But my first concern is, would it be hard to set up for someone who has no such experience? And what kind of compatibility concerns should I have, would all recent nvidia cards/dual nvidia cards setups work with this i5 cpu ? Also would i need additional cables or anything specific to know?

Finally, in the case that you would not recommend me to do a dual gpu set up or that the option is not available to me with my current rig. Which nvidia card could you recommend that would offer the most quality and performance and that would be compatible with the desktop's specs.

I've been looking into this and other issues related to it for days now, google searching, forum searching, but every problem I encounter hides another one behind it and my head got knocked out by all this new information. I would really appreciate the help. thanks.
 
Solution
1) I wouldnt risk it personally, as bad quality PSUs have the potential to kill your expensive components - However, its possible that it would work fine (seen plenty of people run nice cards on shit PSUs) The risk would be yours to take, but I would advise against it.

2) The GTX 750 Ti is the highest performing card that draws very little power, so if you really didnt want to change your PSU, this would be my recommendation.


But finally, I would really consider changing that PSU, it would be a shame if it blew any of your components.
1) Ignore the shared ram for video cards, its pointless. Dedicated GDDR5 is the only important amount.

The GTX 650 was a low-mid range card when it was new, I wouldnt waste any time with it. The whole point of having a desktop gaming pc is that you can have a much more powerful graphics card. Look at the GTX 970.

If you play Physx games, you could keep your GTX 650 and dedicate it to physx - it will give you a FPS improvement, but only in games that use physx.

Your i5 is totally fine and still top tier for gaming.

What PSU does your desktop have? as this will be the only thing limiting what Graphics card you can put in.
 
Your best bet at the moment is likely to be the 970 as Rob suggested.

Using it alone you will have no problem gaming at high details, and your i5 will be capable enough to record sessions easily. I have personally used nvidia's Shadowplay on an i3 and encountered little to no slow down in the games performance. Dual GPU might be a bit overkill, and I am not sure how the 900 line perform in SLI at the moment.

As mentioned take care to ensure you have a good PSU in there and you should have no problem at all. The i5 you have is very capable of taking care of your needs.
 
Thank you so much for your answer guys.
Here are the specs of my psu:
Huntkey v-power lw-6500, max watt 500, regular watt output 400.
detailed specs: http://icecat.us/en/p/huntkey/lw-6500hgp/power-supply-units-4897024230089-V-Power+500-11278346.htm.

I'm actually going to get a gtx 970 or similar model available right now. Hopefully you guys can confirm me that this psu will handle it, otherewise, well i'll have to return it or by another psu i guess.

Please let me know if you believe that psu will handle gpu's such as gtx970.
Thanks for your help.
 


Get that PSU changed to a more reputable brand. It might be ok, but its not worth risking it - these have been known to burn when heavily loaded...

http://www.hardwaresecrets.com/article/Huntkey-V-Power-550-W-Power-Supply-Review/754/9
 
Thanks for the advice Rob.
I didn't leave the house and the store is open till 10pm (7pm here) so maybe i can get more specific information before i go. From what I read in your link, and its kind what i suspected, its not a great brand.
Well the psu came together with the desktop tower and to be honest, I don't really feel like changing it for a while or at least not with expert help which will not be any soon considering the availabilty of such help where I am.
Reading the link you provided, the op was suggesting that at 45°c room temperature the psu would start wearing out. I mentioned earlier that the desktop's casing included a 3 (dedicated/external) fan cooling system which seems to be pretty efficient (maintainng the temperature at 40°c at 0.75 rpm each (it can go up to 2.50).
My question is thus two folded:
1) Would you think me getting a gtx 970 and raising the fans without changing the psu would allow me to function correctly?
2) Since i'm not going to change psu's any soon, would you recommend me to get a different nvidia gtx card ?

Thank you again for your help. I'll wait a bit for answer before i go to the store.
 
1) I wouldnt risk it personally, as bad quality PSUs have the potential to kill your expensive components - However, its possible that it would work fine (seen plenty of people run nice cards on shit PSUs) The risk would be yours to take, but I would advise against it.

2) The GTX 750 Ti is the highest performing card that draws very little power, so if you really didnt want to change your PSU, this would be my recommendation.


But finally, I would really consider changing that PSU, it would be a shame if it blew any of your components.
 
Solution
Thanks again for all this help.
I will risk myself with the gtx 970 on that psu. And hopefully i won't have to learn the hard way that it was a wrong idea.
Either way, your help has been tremendeous in that, if the problem arises, i will actually know where it comes from and how to deal with it.

All the best!
 
Update: I got a gtx 780 ti 3gb in the end (they didnt have gtx 970 inthe store but it seems it sort of performs equally). And indeed, I had to change the psu to a Silent pro gold 800w.
thanks again.
 
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