Advice on new graphics card

Fat8oy

Reputable
May 30, 2014
9
0
4,510
Hi all,

I currently have a AMD FX6100 / 8GB RAM and two Geforce GTX 550 Ti's in SLI config. I have been trying the new StarCitizen beta (which I can't wait for) and the machine struggles. I also play a lot of Rome 2 and although it plays ok I would love to turn the settings up :) It seems to me it's the graphics cards that's struggling not the CPU or RAM, would you agree?

I have been looking on the site and in the reviews it says the best Upper-Midrange Value Leader is the GTX 760. I would like to keep it close to spending £200-250 maybe a little more if it makes sense, and I was wondering if I would be better to get one GTX 760 (And then should I get the 2 or 4GBs or RAM and lose the SLI or purchase something like the GTX660 get two of them and have them in a SLI setup? I don't need the extra connections two graphics cards give me but is it better to have two slower cards or one faster card? Or if anyone has ant better suggestions I would love to hear them

Thanks
FB
 
Solution
the 4GB is a waste anyways, only unless you go SLI. By the time you actually need over 2GB Vram, the core itself is already struggling, meaning that the extra Vram will offer very little help, even with multiple screens and higher resolutions. The 2GB is enough if you don;t plan to SLI, if you do sli, the 4GB is highly advised.

xbizzaroz

Honorable
Feb 9, 2014
532
0
11,360
personally id go with one gtx 760 2GB. you won't necessarily need the 4GB because even that card isnt powerful enough for AA and AF on current games (i.e. battlefield 4, titanfall, watchdogs, etc.) however with AA and AF turned off the 760 will play those games very well. ive seen benchmarks on battlefield 4 running ultra 40-60 FPS 1080p.
 

Fat8oy

Reputable
May 30, 2014
9
0
4,510


thanks for your input xbizzaroz, most appreciated, so without AA/AF the 4GB would just be wasted? Surely with more RAM there would be less need for swapping data in RAM and it would work slightly faster? Or is 2GB really enough. I guess if I got the 2GB card I could always add another 760 in 6 months to a years time...
 
the 4GB is a waste anyways, only unless you go SLI. By the time you actually need over 2GB Vram, the core itself is already struggling, meaning that the extra Vram will offer very little help, even with multiple screens and higher resolutions. The 2GB is enough if you don;t plan to SLI, if you do sli, the 4GB is highly advised.
 
Solution

Fat8oy

Reputable
May 30, 2014
9
0
4,510


Surely by adding another card I would be going from 2 to 4 GB just by adding that extra card?? Or are you saying that SLi/Crossfire adds a overhead to the RAM on the card therefore taking away from the actual RAM the graphic card can use on screen
 

xbizzaroz

Honorable
Feb 9, 2014
532
0
11,360
even then, with one card you should be able to play today's games nicely. SLI is good for the future...then again by that time the 800 series should be coming out for desktop graphics as they already have the 800 series out for mobile graphics.
 

ChrisR83

Reputable
Apr 11, 2014
470
0
4,960


When you SLI/Xfire cards if you have two different amounts of Vram i.e. 2gb and 4gb. the more powerful card will only run at the specs of the lesser card (a 4gb card will only run at 2gb if paired with a 2gb card).
 


2GB+2GB=2GB

2GB+4GB=2GB

4GB+4GB=4GB

Vram is mirrored not added, if that's what your asking.
 

Fat8oy

Reputable
May 30, 2014
9
0
4,510
Thanks all, specially unknown I didn't know it was mirrored. Seems silly to me that its mirror and not not added to. Why mirror its not like a HDDs in raid 1 which make data redundant. There seems no benefit to mirror the RAM.
 

RobCrezz

Expert
Ambassador


Because the vram is used as a frame buffer, and the gpus need to access that information very quickly, if GPU2 had to access the information from the vram of GPU1 then it would be a massive bottleneck because it would have to go over the PCI-E bus.