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Graphics GTX285 to HD6850 Crossfire - worthy upgrade?

Discussion in 'Hardware' started by Boardoombob, 13 Jan 2013.

  1. Boardoombob

    Boardoombob What's a Dremel?

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    Hi,

    I've been offered a pair of HD6850's by a mate at a pretty cheap price, but I'm not 100% sure if they'd be a worthy upgrade or not over my GTX285.

    My current machines specs are in my sig and at the moment I'm pretty much playing Arma 2, Xcom, a bit of BF3 and a few others which are ok at near native res (1920 x 1200, native res is 2560 x 1600) at mid-range settings on pretty much anything (BF3 is the performance hog at the mo).

    Is swapping my GTX285 out for a pair of 6850's a decent upgrade, and if so, will I get any sort of issues with running them in Crossfire?

    Cheers,
     
  2. MrGumby

    MrGumby CPC 464 User

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    They question is how cheap? Also going for 2 old mid range cards isnt usually a great bet. In situations that use crossfire great but when crossfire isnt supported your down to single 6850 speed.
    Also what resolution are you gaming at?
     
  3. TheDodoKiller

    TheDodoKiller Minimodder

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    You might want to save yourself a bit of money.

    The advantages: DX11, possibly lower power consumption, although that would be debatable. You'd have less video memory, but unless you're running over 1920x1200 then that isn't a problem.

    The Disadvantages: Probably higher power consumption, crossfire issues in certain games, lower Vram.

    It's your call. It's not worth it in my book, but if you play a lot of a game that's well optimised for Xfire, then it might be. It's hard to be decisive, but generally, 2 mid range gpu's do not equal a high end one.

    A 6970 could be a good deal if you can find one at the right price, and there are a few 580 knocking around for not too much either.
     
  4. Elton

    Elton Officially a Whisky Nerd

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    HD6970 at least. A GTX285 is actually equivalent to a HD6850. Crossfire won't yield much improvement to justify it.
     
  5. Harlequin

    Harlequin Modder

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    ram wise the 6850 came with 1gb or 2 - same as the gtx 285

    speed wise 1 x 6850 is comparable to 1 x gtx 285 and ofc in games that support CF then 2 of them are a lot faster!
     
  6. Elton

    Elton Officially a Whisky Nerd

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    To an extent, but if you can find a HD6970 or something similar, you're getting a bit more performance (or less) but with less driver hassle.
     
  7. Boardoombob

    Boardoombob What's a Dremel?

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  8. play_boy_2000

    play_boy_2000 It was funny when I was 12

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    The 6850 is the cutdown midrange core. Unless you can get both cards for around the 100 quid mark, I'd pass on the offer.
     
  9. Elton

    Elton Officially a Whisky Nerd

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    Well the HD6850s are straight middle class of the previous generation. The 285s were the top end of three generations ago. The reason for the discrepancy was the fact that the middle range rather stagnated until the GTX460/HD6850 era. The HD5770 being equivalent to a HD4870.

    The only disadvantage of the 285 is lack of DX11, but it's actually surprisingly serviceable as a GPU.

    And yes technically ATI didn't manage as many frames as the GTX580 in the HD6xxx generation, but in total fairness, their prices were significantly lower than the competition. A single HD6850 is about as fast as a GTX275. Hence why I mentioned getting at least a GTX 570 or a HD6970. It's almost twice as fast as a GTX285.
     

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