TWO 295 VS. THREE 285 - WHICH HAS MORE POWER?

Gentlemen, i was wondering which graphics solution had more THEORETICAL Graphics Processing power - TWO 295's or THREE 285's...

i checked on http://www.nvidia.com/HelpMeChoose/fx/HelpMeChoose.asp and did some basic calculations, and the combined power of these SLI solutions, in theory, are:-

2 X 295's 3 X 285's
Graphics Performance (X) 134 147
Standard Memory (GB) 3.5 3
Texture Fill Rate (Billion) 184.4 155.4
Max Mem. Bandwidth (GB) 447.6 477


Now, as the 295s have a 18% advantage in Texture Fill Rating, and the 285s have a 6% advantage in Max. Memory Bandwidth, i think the 295s win...

what do u guys think...?
6 answers Last reply
More about power
  1. 3xGTX285s

    The GTX295s don't scale as well.

    Here is my rudimentary chart:

    1 GTX285 = 1.5
    2x GTX285 SLi = 2.7
    3x GTX285 SLi = 3.66

    1 GTX295 = 2.34
    2x GTX295 = 3.64

    1 GTX260 216core = 1.3
    2x GTX260 216core SLi = 2.34
  2. Most modern games are not limited by texture fill rate, but by Shading power and memory bandwidth.
  3. While theoretically the 2xGTX295 is superior, in practice the 3xGTX285 will destroy them in most scenarios due to poor SLi scaling.
  4. You could also overclock 3 cards better than 4 dies put into 2 cards
  5. As B-unit said, 2 GTX285's are technically more powerful in terms of specs and cores and stuff like that, but current SLI technology interferes in some ways apparently.

    -Blue Screen of Death, maybe I am wrong but i thought that a GTX295 was 2 GTX275s and not GTX260, maybe I am mistaken...
  6. blackhawk1928 said:
    As B-unit said, 2 GTX285's are technically more powerful in terms of specs and cores and stuff like that, but current SLI technology interferes in some ways apparently.

    -Blue Screen of Death, maybe I am wrong but i thought that a GTX295 was 2 GTX275s and not GTX260, maybe I am mistaken...


    Specs are similar to 2 GTX275s, but performance doesn't come anywhere close. The GTX295 is about equal to two GTX260 216s.
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