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Upgrading from a 5770 (4 year old PC)

Hi all,

I'm planning to upgrade my graphics card from 5770 to 6870. However, I have 2 questions:

1) 6870 is a PCI-E 2.0 card. My mobo is Gigabyte MA785GMT-UD2H. Is this card compatible with my old mobo?
2) I have a 520W PSU with following specs: (Akasa AK-520G)
+12V(V1): 22A
+12V(V2): 20A
Will my PSU be enough for 6870?

Thanks!
11 answers Last reply Best Answer
More about upgrading 5770 year
  1. akasa turns up in tier 3 - http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html Its OK but not great.

    For a 6870 pc you need 40A and 600W minimum. From that list, get something like an XFX650, Seasonic 620 or Antec HCG 620M
  2. Um... the 6870 is a 150W card. 12.5A not 40A (yes we all know that's for the whole system but we also all know that's way higher than necessary). Yes its a 3rd tier PSU and yes I would not recommend it to anyone. But the rail for it is MORE than capable of handling it and his 5770 already pulls 110W. its an extra 3 Amps/40W... It will be fine.
  3. Ah yeah checked again - 28A, 500W. Get an Antec HCG 520M, XFX 550 or Seasonic 520.
  4. I completely agree with you I don't like the PSU and I would personally replace it. But again. Its an extra 40W.... unless the rest of his 4year old system is somehow sucking ton of power it really shouldn't be any worse than it is now.

    OP full system specs are always helpful. I suspect you have quite a bit of leeway so if no where close to full load and you are probably fine with an "OK" PSU.

    I also assume you are buying the 6870 used? the R9 260x would be about the same a a 6870 plus be a GCN card and use as much power as your current 5770.
  5. unksol said:
    Um... the 6870 is a 150W card. 12.5A not 40A (yes we all know that's for the whole system but we also all know that's way higher than necessary). Yes its a 3rd tier PSU and yes I would not recommend it to anyone. But the rail for it is MORE than capable of handling it and his 5770 already pulls 110W. its an extra 3 Amps/40W... It will be fine.
    Thanks unksol! What about my motherboard? Is it compatible with the 6870?
  6. With the screwy pricing on old cards, the retail price of the 6870 is $300! The R7 260x is $100. It performs about 20% better than the hd 6870.
  7. i7Baby said:
    With the screwy pricing on old cards, the retail price of the 6870 is $300! The R7 260x is $100. It performs about 20% better than the hd 6870.


    Well, I hadn't thought of R7 260x. That could be a good choice too. But will this card work with my mobo? It is an old motherboard with probably PCI-E 1.
  8. Yes it will work and I messed up the name. I said r9 260x. i7baby is correct it is the R7 260X.

    I of course assumed that if you are looking at a 6870 you would buy it cheap on ebay as it is discontinued. Or you are not in the US. if you are looking to buy new definitely the r7 260x which will use as much power as your current card
  9. But I'd still recommend getting a better power supply.
  10. Best answer
    I completely agree. I never like to see a 3rd tier PSU in a system. and at 4 years old it would be very dicey at full load.

    BUT a r7 260x is not going to increase the load from a 5770. he should have a 140W CPU max. so the main parts worst case are only 250W assuming no overclocking. probably much lower.

    If the budget is limited I would say GPU first and PSU update is not critical as long as he is below 400w. And he should be easily.

    OP if you can spare the cash i7baby did recommend some great 500W PSUs above that would serve you well when its time to upgrade the rest of the system.

    My position is that with an r7 260x you will not load the PSU more than you are currently and you should be well below your PSU rating. HOWEVER if you can buy a better PSU I would recommend you do so. In the grand scheme of a budget though I would not say it is critical.
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