Help on choosing a new graphics card

Hello this is my first time posting here
I'm currently looking for a new graphics card since my hd 5400 died out on me
looking for a video card than can run dota 2 on max settings on 1366x768
my budget is 70-100$
here is my computer specs
PSU: Powerlogic 450w(it says 450w max power and 230 real power dunno so i'm gonna write it anyway)
RAM:4 gb
CPU:Intel Core i3-2100 3.10GHz
OS:Windows 7 Ultimate 64-bit
3 answers Last reply Best Answer
More about choosing graphics card
  1. go for a 7770
  2. vince232 said:
    go for a 7770

    i looked up for it and apparently it requires 500W (or greater) power supply with one 75W 6-pin PCI Express power connector
    should i change my psu as well?
    thanks for replying
  3. Best answer
    if your psu is generic go change it. a decent 450 can run a 7770.
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