Help plz with HD 7950 and 3D

hi all,
im planning to buy SAPPHIRE HD 7950 3GB OC GDDR5
here the link
http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&pid=1450&psn&lid=1&leg=0
and I have monitor Samsung S23A700D
and this link for monitor
http://www.samsung.com/africa_en/consumer/pc-peripherals-printer/monitors/led/LS23A700DS/XA
my question is
Is this card support this monitor with 3D @120Hz??

and thx all
44 answers Last reply
More about help 7950
  1. It will, but not at 1080p with 60hz (per eye).

    You should look at the Samsung 750 or 950 models for the displayport connection required for AMD to support 1080p HD3D at 60hz.

    Unless AMD has added support for dual-link DVI, but last I have checked, AMD required frame packing that is not supported by DVI.

    EDIT: I noticed that the link you provided for the video card specifically mentions that the HDMI and displayports support stereoscopic 3D, and the DVI connection does not. This means that monitor will not work for you at 1080p assuming it even allows for HDMI 3D.
  2. at video card link it say:
    Dual-Link DVI:
    Equipped with the most popular Dual Link DVI (Digital Visual Interface), this card is able to display ultra high resolutions of up to 2560 x 1600 at 60Hz.

    so maybe at 1920 x 1080 i get 120Hz??
  3. Yah, you can use 120hz with that at 1080p, but not 3D. HD3D will require either HDMI 1.4a or Displayport.
  4. the monitor dont have displayport
    so at HDMI 1.4a I get 120Hz or 60Hz or what?
  5. techx said:
    the monitor dont have displayport
    so at HDMI 1.4a I get 120Hz or 60Hz or what?


    With HDMI 1.4a with the use of frame packing, you can get 60hz per eye at 720p or up to 30hz per eye at 1080p. It will not work at 120hz without 3D.
  6. Why don't you buy an Nvidia card? I'm sure it supports 3D through DVI.
  7. nvidia doesn't support this monitor
    I see this in my monitor manual


    so whats u think guys?
  8. I don't know. According to your video card, and AMD a few months ago at least, AMD won't work with DVI-D with HD3D. Maybe things changed? I don't know.
  9. Maybe Samsung has its own software to make it work.
  10. ok, what u advice me guys?
    what video card I should buy with my monitor (Samsung S23A700D)
    HD 7950 or something else?

    I'm lost QQ
    help me plz
  11. I'd email AMD and ask them if it's going to work.
  12. ok your monitor has an HDMI port so all you have to do is plug in an HDMI cable and download TriDef 3D. Also 3D will work with DvI so you'll be fine ?
  13. You're kinda out of luck, if you already own the monitor. You can do 24fps over HDMI, but otherwise you bought the wrong monitor. It's kinda sad that samsung sells that thing, I've seen a few other people land in the same situation.

    Though DualLink-DVI is worth a try and may actually work, seems to be pretty conflicting information. It does have the bandwidth to support the framerate needed, but it may not be supported for frame-sequential 3d in tridef.

    On the upside, you should be able to keep a steady framerate, if you are capped at 24fps. I have a 7870, an i7 2700k, and s23a750d, and some games have trouble reaching 120fps in 3d in some games (looking at you skyrim).

    Nvidia isn't going to be any better. They require you to use their glasses and monitors to get frame-sequential mode.

    (sorry for all the edits.)
  14. ok ty all
    the problem in the monitor or in video card? :/
  15. If there is a problem, it's going to be the monitor. HDMI cannot support full framerate 3d.

    DL-DVI does support full framerate 3d (bandwidth wise), however it's questionable whether it's supported by AMD for Framesequential 3d.

    Your monitor isn't an Nvidia 3d-vision monitor, so your best case scenario in using an Nvidia card would by side-by-side 3d mode with tridef, which halves the resolution of the composed 3d image.

    If you want to know before you buy, contact AMD directly and ask "Will an HD 7950 support frame sequential AMD HD3d at 120Hz (60FPS per eye) over dual link DVI?".

    If you have an AMD HD 5000 or newer video card and a dual link DVI cable, you can test this yourself using the trial version of Tridef, and see what framerate you get (note that tridef displays your framerate as fps per eye, so 60 fps means you're getting 60 left eye frames and 60 right eye frames); choose an older supported game with low cpu and gpu requirements and run at low settings so you can ensure it's maxing out framerate.

    If you need a new video card anyway, AMD is going to give you the best results given the monitor you already own. The 7950 is a good choice, going for the 7970 however would not be a waste either though, I rather wish I had gotten a stronger GPU than the 7870 when I purchased.
  16. yes HD3D works with all DVI as DVI is the same as HDMI but doesn't support High-def audio ? you'll be fine ? i use DVI now for 3D ?


    if you read this it says to use 3D you need either DVI out, HDMI, or Displayport ?

    http://www.amd.com/US/PRODUCTS/TECHNOLOGIES/AMD-HD3D/Pages/how-to.aspx
  17. ok sry for asking a lot

    is 7970 will do better than 7950?
    so best choice is 7970 then 7950?
  18. Yes hd 7970 is faster than hd 7950.
  19. if gaming either will be fine ? you could oc an HD 7950 to compete with an GTX 680 ?
  20. I mean 7970 will do better than 7950 sequential AMD HD3d at 120Hz? (not in game, coz I know it's better for game)

    thx
  21. are you trying to game in 3D or watch movies like i do ?
  22. both
    but 7950 is enough for me for my games
    no big difference in FPS between them but big difference in $
    so ill get 7950 OC
    but idk about 120Hz xD
    and sry for my english
  23. well just get the HD 7950 and oc it and you will be good to go especially with that monitor :D ?
  24. OK
    i'll get 7950 OCed
    I think this is best choice for me
    7970 is waste for my $

    thx all for help :)
  25. your very welcome
  26. gamerkila57 said:
    yes HD3D works with all DVI as DVI is the same as HDMI but doesn't support High-def audio ? you'll be fine ? i use DVI now for 3D ?


    if you read this it says to use 3D you need either DVI out, HDMI, or Displayport ?

    http://www.amd.com/US/PRODUCTS/TECHNOLOGIES/AMD-HD3D/Pages/how-to.aspx


    Sorry, that is not true. HDMI also supports a technology called frame packing. AMD had at least in the past, required the use of frame packing in their HD3D support.

    If you have watched any AMD setup videos, you'd know that they have always said it required HDMI 1.4a. More recently, they added displayport support, which also has frame packing.

    That said, did AMD make a typo on that list, or have they added support for dl-dvi with HD3D and failed to make mention of it? I am not sure.

    Edit: for reference, late last year I bought a 3D monitor that supports 3D through DL-DVI and HDMI 1.4a but was limited to either 24hz or 720p. I had 6950's at the time. After testing it, and finding the DL-DVI connection would not work with HD3D, I found it would work with HDMI 1.4a. I also tried with a Displayport to dl-dvi active display converter, which did not work.

    After a lot of research at the time, I learned it is not supported with DL-DVI on AMD. However, Nvidia's video cards did work with it, which is why I use Nvidia now.

    But like I said, that is either a typo, requires special support by the Monitor, or AMD added new support for DL-DVI and no longer requires frame packing.
  27. bystander said:
    Sorry, that is not true. HDMI also supports a technology called frame packing. AMD had at least in the past, required the use of frame packing in their HD3D support.

    If you have watched any AMD setup videos, you'd know that they have always said it required HDMI 1.4a. More recently, they added displayport support, which also has frame packing.

    That said, did AMD make a typo on that list, or have they added support for dl-dvi with HD3D and failed to make mention of it? I am not sure.


    AMD HD3D has always supported DVI as i've been using it since HD5xxx series ? frame packing isn't needed
  28. gamerkila57 said:
    AMD HD3D has always supported DVI as i've been using it since HD5xxx series ? frame packing isn't needed


    Is this for gaming at 60hz per eye? All the articles on the subject say other wise.

    http://www.tomshardware.com/reviews/radeon-hd-6870-radeon-hd-6850-barts,2776-3.html
    http://www.techradar.com/us/news/computing-components/graphics-cards/amd-hd3d-technology-what-you-need-to-know-1055719
    http://www.bit-tech.net/hardware/graphics/2011/05/23/amd-talks-hd3d/3
    https://www.google.com/search?q=AMD+HD3D+requirements&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

    Just go through all the links on the google search. It has not always supported it, if it does at all. Are you using it with gaming or movies, and what is your hz with it?

    I tried myself late last year.
  29. Quote:
    FX 4100 4.2GHz l MSI 760GM-P21(FX) l G.Skill RipJaws 4GB (2x2GB) 1333MHz l Lite-On Bluray 3D Burner l Corsair 850w psu l CM Storm Scout Case l 2x hitachi 160GB HD and WD 500GB HD and WD 80GB HD l Vizio 1920x1080 3D TV


    If you are using a Vizio 3D TV, does that mean you are basing it on the first link, or do you have first hand knowledge with another 3D monitor?
  30. ok I messed up xD
    what best connection I use?
    DL-DVI-D or HDMI?
  31. techx said:
    ok I messed up xD
    what best connection I use?
    DL-DVI-D or HDMI?


    Let's just say there is confusion and a lot of contradictions on the subjects from review and AMD sites. Based on Samsung's manual, your only hope is AMD. I'd personally buy from Fry's or a microcenter so that you can try it, and if it doesn't work out, you can easily return it.
  32. both ive used a 60Hz tv and 120Hz monitor ?
  33. I looked into that 700D monitor and hd3d some time ago and on some forum posts I remember reading that you can tweak the TriDef3d software to recognise the monitor as generic 120Hz monitor and when connected with DL-DVI you can actually use it in 3d mode at 120Hz.
    You had to download the full version of the TriDef software and use that instead of the one that comes bundled with the monitor (since it is a stripped down AMD-version), same product key should work though...
    While it isn't completely official and a little bit on the illegal side, it was said that this method was suggested by a TriDef rep...
    I haven't tested it so don't know for sure if it works. Sounds plausible though
  34. also why can't you just use HDMI because the monitor does have an hdmi port ?
  35. Kari said:
    I looked into that 700D monitor and hd3d some time ago and on some forum posts I remember reading that you can tweak the TriDef3d software to recognise the monitor as generic 120Hz monitor and when connected with DL-DVI you can actually use it in 3d mode at 120Hz.
    You had to download the full version of the TriDef software and use that instead of the one that comes bundled with the monitor (since it is a stripped down AMD-version), same product key should work though...
    While it isn't completely official and a little bit on the illegal side, it was said that this method was suggested by a TriDef rep...
    I haven't tested it so don't know for sure if it works. Sounds plausible though


    I attempted this with my monitor, and I did use Tridef, as AMD's solution requires it, or Iz3d (didn't work for me at all). Tridef worked with HDMI 1.4a but not dl-dvi. This was around September, and the last time I tried was probably October.

    My guess is that perhaps the Monitor has some special hardware/software to mimic frame packing or AMD has more recently changed their requirements? I'll have try it myself. My monitor has both dl-dvi and HDMI 1.4a and works with my Nvidia setup on the dl-dvi connection. I'll test it out after I go to the grocery store.
  36. gamerkila57 said:
    also why can't you just use HDMI because the monitor does have an hdmi port ?


    HDMI limits you to 720p at 60hz in 3D, or 1080p at 24hz (some up to 30hz, I think that is based on drivers).
  37. gamerkila57 said:
    also why can't you just use HDMI because the monitor does have an hdmi port ?


    HDMI doesn't have enough bandwidth to run it at 1080@120Hz
    (the latest 1.4a might have... slight confusion on this one as well :pt1cable: )
  38. ok
    what's fainal advice? lol
  39. techx said:
    ok
    what's fainal advice? lol


    Buy a 7950 at a local store with a good return policy. Test it, and return it if it doesn't work (or if you want to buy it cheaper elsewhere).

    And report back here with feedback if you will. I hate the confusion caused by AMD's HD3D.
  40. well it does work with 7000 series cards at 1080@120Hz 3D over DL-DVI as proved by several dudes in this monster thread:
    http://forums.overclockers.co.uk/showthread.php?t=18330547

    edit just to add, i scanned some pages at the end of the thread, there are dudes who have it running, I'd guess there are working instructions somewhere earlier in the thread... wathcing olympics, no time to dig through it all :)
  41. bystander said:
    Buy a 7950 at a local store with a good return policy. Test it, and return it if it doesn't work (or if you want to buy it cheaper elsewhere).

    And report back here with feedback if you will. I hate the confusion caused by AMD's HD3D.

    I can't return it if I bought it unless if it's dameged QQ
    thats why I asked a lot
  42. I think i might have found some instructions
    http://forums.overclockers.co.uk/showthread.php?t=18330547&page=16
    Quote:

    You don't need an adapter only using one monitor, it comes with a DL-DVI cable which plugs directly into your gpu.
    No need for DP, Samsung onboard 3D/3D AMD/3D Tridef works via the DL-DVI cable supplied in the box.

    http://forums.overclockers.co.uk/sho...php?t=18392506

    Read that thread, everything you need to know about 3D gaming using this monitor with AMD.

    Instructions are there on the best way to install current Tridef release.

    and the link
    http://forums.overclockers.co.uk/showthread.php?t=18392506


    so its a bit of tweaking but can be done apparently
  43. thx so much Kari for help
  44. Kari said:
    well it does work with 7000 series cards at 1080@120Hz 3D over DL-DVI as proved by several dudes in this monster thread:
    http://forums.overclockers.co.uk/showthread.php?t=18330547

    edit just to add, i scanned some pages at the end of the thread, there are dudes who have it running, I'd guess there are working instructions somewhere earlier in the thread... wathcing olympics, no time to dig through it all :)

    cool i'm watching the Olympics in 3D :D ?
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