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HD 7770

im really confused about RADEON cards..like why is hd 6850 better that 7770...??

i have a GTS 450 at home..and im thinking that i should upgrade it now..
my target is hd 6770..but when i saw hd 7770 i already think that its more powerful..
but when i googled it i saw that 6850 is more powerful that 7770..????im confused
is radeon cards don't base their power on there name?? like nvidia cards??

like this one

GTX 550 -GTX 560 - GTX 580 and sooo on...
6 answers Last reply Best Answer
More about 7770
  1. They do... for example, in order of increasing performance:

    6670-6770-6850-6870-6950-6970-6990

    7750-7770-7850-7870-7950-7970

    What you're asking is kind of like wondering why the GTS 470 is faster than a GTX 550ti.

    Performance is intuitive within a company's series of cards, but comparing cards from different series requires taking a look at the reviews.

    Also, I wouldn't really say that the 6850 is better than the 7770... they perform basically the same and the 7770 requires far less power and is also currently cheaper.
  2. ohhh i see ..but a lot of people are choosing 6870/6970 instead of 7770???
  3. Well the 6870 and 6970 are both much more powerful than the 7770.

    There's a lot of people still buying the GTX 480 too, even though that's two generations old now.

    When a card is in a good spot for price/performance (based on the current market), people will buy it, regardless of what numbers it has on it.
  4. Best answer
    The naming convention for the Radeon HD WXYZ where W is the generation, X is the tier (6 and lower is budget lines, 7 is the mainstream line, 8 is the performance line, and 9 is a dual core GPU extreme line), Y is the subcategory where higher numbers are better, and Z is the variant typically 0 but possibly 5 in certain cards.

    So when comparing relative performance within the same generation is easy, however, cross generations is a bit more difficult just like a GTX 580 is more powerful than a GTX 480.
  5. that what im talking about their performance are not base on thier no. like 6870 -7770 right?? thanks a lot... so for now i'll just wait for other GPU prices to come down. thanks bigmack(^^,
  6. The number is the same system as nvidia's except theres an 0 at the end and AMD's line is more spread out. generally there are 2 or more cards per tier.
    6750 6770 6850 6870
    6th generation cards with 7 being less than 8 and 50s being less than 70s.
  7. noreaster said:
    The naming convention for the Radeon HD WXYZ where W is the generation, X is the tier (6 and lower is budget lines, 7 is the mainstream line, 8 is the performance line, and 9 is a dual core GPU extreme line), Y is the subcategory where higher numbers are better, and Z is the variant typically 0 but possibly 5 in certain cards.

    So when comparing relative performance within the same generation is easy, however, cross generations is a bit more difficult just like a GTX 580 is more powerful than a GTX 480.



    that was a very good explanation on the radeon cards..thats why 6850 is better than 7770.. thanks that was a very useful information for me..
  8. Best answer selected by kramkat.
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