Solved

what graphic card should I use for my computer with a 300w PSU

hi, I have a hp pavilion 500-96 desktop and it's equiped with a 300W PSU. these are the dc output of the PSU:
+3.3V, 12A; +5.08V. 13A; +12Va, 12A; +12Vb, 16A; AND =5.08Vsb, 2A.
the processor is core i5 3330S, it max TDP is 65W with the highest frequency of 3.2GHz. So about how much watts are left for a graphic card? I play 3d games a lot btw.
9 answers Last reply Best Answer
More about graphic card computer 300w psu
  1. you probably can get a 7790 into it. it's a 87W gpu, and light years faster then any comparable power usage gpu. Should work just fine. Nvidia doesn't really compete with CGN in the sub 100W gpu category very well.
  2. An AMD HD7750 would be about the best I would suggest running.
  3. Best answer
    Gordon Qian said:
    hi, I have a hp pavilion 500-96 desktop and it's equiped with a 300W PSU. these are the dc output of the PSU:
    +3.3V, 12A; +5.08V. 13A; +12Va, 12A; +12Vb, 16A; AND =5.08Vsb, 2A.
    the processor is core i5 3330S, it max TDP is 65W with the highest frequency of 3.2GHz. So about how much watts are left for a graphic card? I play 3d games a lot btw.


    Hi - the total +12v amps ia almost always less than the 2 rails added together (28), assuming they don't show
    what the total +12v amps is, it looks like you'd be safe in running a gtx650ti, or hd7790 & 7850. However, all
    three of those require a pcie connector(some 7850's require 2) which I don't think you have.

    You can get a molex to pcie adapter or you can stick with an HD7750 which doesn't require one.

    I'd try & find out the tot +12v amps, and if it's 24 or more go with at least the 7790 &
    use the adapter, many gpu's include one thereby eliminating the need to purch one.
  4. the 7850 and 650ti BOOST are both 120-130W gpus... and likely will be pushing up against the limits of his psu. he never said which one he had so i went with the best sub 100W gpu anywhere.

    and yes, the 7750 is probably the best 40W gpu in existence, if he doesn't have a 6 pin gpu plug, or the extra molex 4 pin plugs for an adapter in his case, then the 7750 is probably the best option for him
  5. ingtar33 said:
    the 7850 and 650ti BOOST are both 120-130W gpus... and likely will be pushing up against the limits of his psu. he never said which one he had so i went with the best sub 100W gpu anywhere.


    No, if he has sufficient +12v amps he can run either of those, sytems with 650ti &
    7850 require 20-21 +12v amps. If he has at least 24 he's good to go.
  6. can I combine the 12Va with +12Vb to get 28A? (12A + 16A) Sorry I forgot to clarify that my PSU do not have the molex connector, it only has the SATA power connector, and I don't want to max out the PSU for longevity.
  7. by the way, I'm planning to get a 1080p monitor, so will the 7750 still able to handle games sufficiently within 5 years with 1gb of graphic card RAM? or do I need a 2gb one?
  8. Gordon Qian said:
    by the way, I'm planning to get a 1080p monitor, so will the 7750 still able to handle games sufficiently within 5 years with 1gb of graphic card RAM? or do I need a 2gb one?

    Go for a 2Gb card just to be sure
    And, no your 7750 won't be able to handle new games sufficiently for the incoming 5 years, atleast, if we keep on growing like this
    I got a 300W PSU to, but if I were you I would probably save up for a PC upgrade or a hole new PC with atleast an 850TX PSU for SLI
  9. thanks kirosaka, and right now due to my PSU limit, I will go for the Radeon HD7750. Thanks everyone!
Ask a new question

Read More

Computers Graphics Cards HP Pavilion Graphics