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Thread: HD 4870 vs HD 4850

  1. #1
    Join Date
    May 2008
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    2,442

    HD 4870 vs HD 4850

    I just choose my components in December, I do not understand the difference between the Sapphire ATI Radeon HD 4870 1GB GDDR5 and GAINWARD Radeon HD 4850 - 1GB DDR3 Graphics card

  2. #2
    Join Date
    May 2008
    Posts
    951

    Re: HD 4870 vs HD 4850

    Apart from the brands and their bundle probably different, the maps are not the same level.

  3. #3
    Join Date
    May 2008
    Posts
    871

    Re: HD 4870 vs HD 4850

    low marks you make what you want, each has advantages and disadvantages

    Gainward invloves a lot of problem (such as display bug) but is silent

    While the Sapphire has no bug problem in general, but it is noisier, should use a fan for silence

  4. #4
    Join Date
    Aug 2008
    Posts
    990

    Re: HD 4870 vs HD 4850

    HD 4850

    The Radeon HD 4850 features a core clock frequency of just 625MHz and a GDDR3 memory speed of 2000MHz DDR. This is lower than a previous generation Radeon HD 3870, however just like it the 4850 uses a 256-bit memory bus! The Radeon HD 4850 is actually the third fastest product in the new 4000 series. The Radeon HD 4850 is comprised of a staggering 800 (160x5) SPUs, 40 TAUs and 16 ROPs.

  5. #5
    Join Date
    Feb 2008
    Posts
    1,856

    Re: HD 4870 vs HD 4850

    The difference between the Radeon HD 4870 and its little brother the 4850 can be summed up in two characteristics: theoretical power, increased by 20% solely via higher clock speeds (the number of ALUs remain unchanged, unlike Nvidia’s approach), and above all memory bandwidth, which has almost doubled (+ 80%). This change is the result, as we’ve seen, of the use of GDDR5, with an equivalent frequency that’s nearly doubled compared to the GDDR3 used on the Radeon HD 4850.

    HD 4870 will be clocked at 750MHz, use 900MHz (3600MHZ effectively) GDDR5 memory. Meanwhile HD 4850 will run at 625MHz, use 993MHz (1986MHz effectively) GDDR3 memory.

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