From 7970 cfx lightning to 970 SLI or 980 GTX

Discussion in 'Videocards - NVIDIA GeForce' started by Alpin_fresh, Dec 31, 2014.

  1. Alpin_fresh

    Alpin_fresh Active Member

    Messages:
    57
    Likes Received:
    0
    GPU:
    GTX 980 Gigabyte G1
    Hello everyone,

    I'll change graphic card this week but could you help me to consider which is the best option to go?

    My current rig :

    Asus P8Z68-V GEN 3
    I7-2600k @4.8 (water)
    16 GO G-skill @2133
    Crossfire X 7970 MSI Lightning @1150/1600
    Playing 70% 1920*1080 and 30 % 5760*1080

    What I would like to get :

    - Single 980 GTX
    - SLI 970

    Now my main question : will my rig limit the SLI perf. because of my motherboard can only run the cards @ PCI-E 2.0 X8 / X8 ? Right now with the 7970 crossfired it was not an issue. I would like to keep my CPU which is a beast therefore, I can't use the PCI-E gen 3 ....

    Could you please help me make the best choice ? I sure would like to go to NVIDIA so, 295X2 isn't an option.

    Thanks in advance,

    Regards

    (*sry for my english.)
     
  2. UZ7

    UZ7 Ancient Guru

    Messages:
    5,523
    Likes Received:
    67
    GPU:
    GB Vision 3080 10GB
    970SLI should run fine, most you'll see is probably 1-3fps difference per card so you wouldnt be at a lost. Price/performance is at 970 at around $320-$350 atm and 980 is priced at $560-$600 or at least here in the US so performance with 970 SLI will definitely be over 980 but like with any multi card configuration, you'll be faced with SLI drivers/compatibility etc.. you should know from your CFX configuration. Other than that the best solution would be 970SLI over one 980, especially if you're playing with higher res where the extra horsepower is needed.
     
  3. Wikus57

    Wikus57 Member

    Messages:
    23
    Likes Received:
    0
    GPU:
    Sapphire r9 280x tri x
    Well I would rather go for one 980 if you can go for evga brand you won't have to struggle with sli compatibilty issues and it wil run smoother some games do not suport sli profiles you wil save yourself all the hassle so at the end of the day you wil enjoy games better
     
  4. ---TK---

    ---TK--- Ancient Guru

    Messages:
    22,111
    Likes Received:
    2
    GPU:
    2x 980Ti Gaming 1430/7296
    Sli 970 thats the same gpu power I have with a 2600k (780ti sli)
     

  5. cowie

    cowie Ancient Guru

    Messages:
    13,273
    Likes Received:
    345
    GPU:
    GTX
    Two 670's would be nice I would take that over 1 980 especially if you can find 2 lower cost 970's
     
  6. CalculuS

    CalculuS Ancient Guru

    Messages:
    3,061
    Likes Received:
    287
    GPU:
    GTX 1660Ti
    I don't know man, sure double 970's work but getting SLI to work is a hassle just like CFX.
     
  7. Alpin_fresh

    Alpin_fresh Active Member

    Messages:
    57
    Likes Received:
    0
    GPU:
    GTX 980 Gigabyte G1
    I am afraid that @5760*1080 PCI-E 2.0 *8 in SLI will reduce perf.

    I know perf loss is very little at 1920*1080p but can't seems to find any information for triple monitor.
     
  8. yasamoka

    yasamoka Ancient Guru

    Messages:
    4,856
    Likes Received:
    246
    GPU:
    EVGA GTX 1080Ti SC
    When using triple monitors / 4K / very high resolutions, data exchange between the cards occurs over PCI Express. That's why 3-4 GPUs on triple monitors benefit from the highest possible PCI-E speeds.

    You might get a performance hit using PCI-E 2.0 x8, but I doubt it. At 5760x1080 60FPS, half of those frames are sent from card 2 to card 1. That's 5760 x 1080 pixels / frame * 3B/pixel * 30 frames / second = ~534MB/s. That's one lane's worth of PCI-E x2.0.
     
    Last edited: Dec 31, 2014
  9. ---TK---

    ---TK--- Ancient Guru

    Messages:
    22,111
    Likes Received:
    2
    GPU:
    2x 980Ti Gaming 1430/7296
    Not for me been using it since voodoo days.
     
  10. Alpin_fresh

    Alpin_fresh Active Member

    Messages:
    57
    Likes Received:
    0
    GPU:
    GTX 980 Gigabyte G1
    I switched to one GTX 980 Gigabyte G1..

    [​IMG]
     

  11. Goldie

    Goldie Banned

    Messages:
    533
    Likes Received:
    0
    GPU:
    evga 760 4gb sli
    Impressive, well done! :D
     

Share This Page