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What's the best card I can put in my PC without upgrading the PSU?

I have an HP P6616F ( http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02481322&lang=en&cc=us&taskId=115&contentType=SupportFAQ&prodSeriesId=4269976&prodTypeId=12454 ). I'm satisfied with with pretty much everything. The CPU is fast and more than handles the games I play, the RAM, although small, has sufficed. But the GPU is an integrated Radeon 4200 and it's a real bottleneck. So I haven't hesitated in searching for an upgrade.

I've run into a problem though. The PSU puts out a measly 250W. I don't have the money to upgrade both PSU and GPU, so I need assistance. I want to find the best performing GPU that will run properly with this PSU. I need your guys' help because I don't know much about PSUs and power requirements.

As for my requirements, I prefer performance over eye candy when it comes to games. As long as I can play some relatively new games on low to medium settings at at least 20FPS I'm fine, but in this case, I would like to know what the best performing cards I can run.

The "eXtreme Power Supply Calculator" states that my minimum required wattage is ~171W and ~221W at 90% load. I did not put the 2 case fans in the equation.

What are my options (if any)? Thank you in advance for the help.
12 answers Last reply Best Answer
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  1. The best performing card is the 7750 1GB 800Mhz. You don't need to connect the power supply to this card.

    Max watts for this card is around 46W.

    Total System power would be 216W.

    http://www.anandtech.com/bench/Product/535?vs=610
  2. Interesting... well I've had my eyes on the 6670 for a while now. It performs well and fits within my budget. If the 7750 works then virtually all lower-grade cards should work, correct?
  3. rectec said:
    Interesting... well I've had my eyes on the 6670 for a while now. It performs well and fits within my budget. If the 7750 works then virtually all lower-grade cards should work, correct?

    It depends. The 7xxx series brought power consumption down quite a bit over the 6000s for similar tier cards. See TDP column of chart at link:
    http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units#Northern_Islands_.28HD_6xxx.29_series
  4. Unfortunately, I cannot afford a 7750 as I only have a $65 budget. But really, all I need to know is if a 6670 will work, and if not, what would be the next best thing? Sorry for the confusion.
  5. The 6670 is the next best card. I am not too sure if you computer has a PCI-E x16 1.0 slot or PCI-E x16 2.0 slot. Because 2.1 cards (such as the 6670) sometimes don't work on 1.0 slots.

    In either case, if you have problems with the card you can also look at the gt 440.
  6. fantastik250 said:
    The 6670 is the next best card. I am not too sure if you computer has a PCI-E x16 1.0 slot or PCI-E x16 2.0 slot. Because 2.1 cards (such as the 6670) sometimes don't work on 1.0 slots.

    In either case, if you have problems with the card you can also look at the gt 440.


    Actually, my computer is a debranded version of the P6616F. I would've mentioned this but I knew the PCI slot wouldn't be a concern. This one comes with a 2GB stick of RAM and a different motherboard. The motherboard is a Foxconn 2AB1. ( http://www.findlaptopdriver.com/foxconn-motherboard-2ab1-specs-12242010h37 ) It comes with a PCI-E x16 2.0 slot and 3 PCI-E x1 slots. Again, apologies for the confusion.
  7. rectec said:
    Actually, my computer is a debranded version of the P6616F. I would've mentioned this but I knew the PCI slot wouldn't be a concern. This one comes with a 2GB stick of RAM and a different motherboard. The motherboard is a Foxconn 2AB1. ( http://www.findlaptopdriver.com/foxconn-motherboard-2ab1-specs-12242010h37 ) It comes with a PCI-E x16 2.0 slot and 3 PCI-E x1 slots. Again, apologies for the confusion.


    If that's the case then a 6670 is the card that will work.
  8. fantastik250 said:
    If that's the case then a 6670 is the card that will work.


    Even with the 250W PSU?
  9. Best answer
    Yes, it will be a slightly higher power consumption. If you are concerned about the power consumption you can look into the GT 440.

  10. fantastik250 said:
    Yes, it will be a slightly higher power consumption. If you are concerned about the power consumption you can look into the GT 440.

    http://images.anandtech.com/graphs/graph5969/47391.png


    Well thanks! Now I'm more confident in getting this. Thanks to everybody. If nobody needs to mention anything else, I think this problem is solved. I appreciate your help.
  11. Best answer selected by rectec.
  12. This topic has been closed by Mousemonkey
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