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Can't decide on which gpu to buy. please help me

Last response: in Graphics & Displays
February 3, 2010 8:30:39 PM

i am buying a pc and i have decide all the parts i want except for the gpu. i need you guys to tell me which is better to be used in my system. The system specs that i have chosen are

amd phenom 2 x4 965 be 3.4ghz
4gb RAM DDR3 1333mhz
500GB hdd
asus m4a785t-v evo
600watt psu
budget is roughly around $1000

the choices are 2 ati radeon hd5770 crossfirex/ one ati radeon 5850/ one ati radeon hd5870
i have read the reviews and the specs of each cards but i am still not unable to convince myself on which to buy.
for the suggestions i don't mind if you guys give me other cards for considerations ( i accept both ati and nvidia) because i am still on the process of making a decision. however please tell me the pros and cons of each of the cards that you suggested.
please help me in these matter.

More about : decide gpu buy

February 3, 2010 9:03:20 PM

In most of the benchmarks that Tom's has done, the x-fired 5770s and a single 5870 tend to have about the same results, with the 5850 trailing both of these.
a b U Graphics card
February 3, 2010 11:27:13 PM

Get a 5850 or 5870 over 2 5770s, so you can still upgrade in future and get a nice performance boost.
And with your build, get a 790fx chipset mobo, so you can do 16/16 cf/sli, i believe that mobo only does 16/4 cf/sli?
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February 3, 2010 11:32:28 PM

I'm waiting until March when nvidia releases their new GPU and prices drop.
a c 376 U Graphics card
February 4, 2010 12:25:50 AM

Get the HD5850. Crossfire uses more power and gives off more heat and should be used as a upgrade path, not a starting point. The HD5850 OCs very well up to or past the performance of an HD5870 without the crossfire scaling/compatibility issues of the HD5770s nor the limited memory bandwidth. Here is one for $270 if you use the promocode EMCYNYN62
Also get DDR3 1600 ram. It's marginally more expensive than 1333 if at all;
For the hard drive I highly recommend this;
Make sure you get the C3 stepping 125w 965 chip.
February 4, 2010 4:10:51 AM

then it means that i need to get a higher psu to support the cards right?
and for the cpu i need to get a 965 with c3 stepping and for the motherboard a790gx or 790fx is better. while for the gpu it is better to get a single 5850 rather than 2 5770 and a 5870 as the price is cheaper than a 5870, performance is nearly similar though slightly lower than a 5870, and it does consumes less power than a 5870 right? just to make sure, does the 5870 have any superiority over the 5850 that make it much better ( does it really make difference in gaming and application compared with the 5850 )
a c 376 U Graphics card
February 4, 2010 11:05:53 AM

Any 600w PSU should handle an HD5850. If you plan on crossfiring 2 HD5850s at some point then you probably want to consider a 700w PSU although the 600w may be able to handle it if it is a high quality brand with good amperage on the +12v rail.
Looking up the m4a785td-v it seems the crossfire is only x4 on the second slot so I would recommend a different board instead;
a b U Graphics card
February 4, 2010 12:00:18 PM

Unless you are running some crazy resolution, the 5850 should max any game out happily + later can OC it as needed and even add a second one when newer games arrive that can even push it lol

Yes the 5850 does draw a tiny bit less power than the 5870

Saves 1 watt at idle
Saves about 41watts at Peak

at least until you OC it ;)