4850/4870: PSU ok? 512mb vs 1gb?

nachota1987

Distinguished
Mar 4, 2009
171
0
18,680
hi guys, i was building a new gaming rig:

-P2 x4 940
-gigabyte ma790x ud4 socket am2+
-sapphire hd 4850 512
-coolermaster eXtreme 600W
-2x2gb kingston 800mhz
-thermaltake soprano rs 101
- 500gb sata II 32mb
-19" monitor (already have this)

i think that the psu is ok for the 4850, but im also thinking on getting a 4870 isntead of the 4850

but, would the psu be enough for a 4870?

what about the 1gb versions? are they necesary for a 19 monitor? or is it a overkill?

what if in the future i got a bigger monitor? should i get the 1gb version?

does the 1gb version works fine with a 19" monitor?

hers the psu:

http://www.tranza.com/softis/pv/23 [...] OWER-600W/

as u see, im not buying from the us
thx!
 

Helloworld_98

Distinguished
Feb 9, 2009
3,371
0
20,790
the 4870 will be fine with that PSU.

and if you think you will upgrade to a better monitor in the future then get the 1GB non-ref 4870 by gigabyte since it gives you DP and a better cooler aswell.
 

Siggy19

Distinguished
Mar 5, 2009
144
1
18,690
Does that PSU have four PCI-E power leads ? Each 4870 uses 2 of them, so if you ever plan to crossfire, you may want to check.
 

nachota1987

Distinguished
Mar 4, 2009
171
0
18,680


it has 2.. but im not planning in xfire for a long time..

when the time comes, i would consider if its worth xfire or a new gpu.. if xfiring, then i would look for another psu..
 

nachota1987

Distinguished
Mar 4, 2009
171
0
18,680


im considering the 1gb in case in the future i get a bigger monitor

maybe, if i stay with the 19", i could get the 4870 512

would i have any problems if i use the 1gb with the 19"??
 

Kill@dor

Distinguished
Apr 28, 2009
663
0
18,980
The 1GB won't make a difference in gaming...if you get x2 512MB cards in crossfire and x2 1GB you won't see much difference. The difference is seen in higher clocks, shaders and stream processing ^_^
 

nachota1987

Distinguished
Mar 4, 2009
171
0
18,680
ok, so ill stick to the 4870 512

if im going to xfire 2 4870 in the future i need a psu with 4 6pin connectors right? or can i use the 6pin to 4pin adapters that come with the card?
 

neon neophyte

Splendid
BANNED
i just put a gtx 285 on a 500w psu. ive read number varying from 500-700w. *shrug* seems to run games and not crash so im assuming its ok.

also, 1 gig does make a big difference. (especially at higher resolutions.)
 

nachota1987

Distinguished
Mar 4, 2009
171
0
18,680
ok

the psu has 2 x pci 6pin and 6 x 4pin
that will work for 2 4870 in xf?

i was also concerned about the 12V rail.
it says the following:

+12V1 18A

+12V2 18A

is that ok?

srry im insisting
 

neon neophyte

Splendid
BANNED
im not ranting, im responding to you. which is responding to me. takes 2 to dance. you might want to look in a mirror. also, name calling? really?

http://www.overclock.net/ati/401321-4870-512mb-vs-1gb-comparison.html

crysis warhead, 1920x1200 8xAA... the 1 gig card more than DOUBLES the fps of the 512 meg card. in many cases it just pads on 6-10 fps. which, is a lot in terms of high end videocard comparisons.

i should also point out, in those benchmarks, the 512 meg card is clocked higher.

i feel i had information to offer. and i did. wasnt ranting. it was helpful. you just dont agree. (and are wrong.)
 

Kill@dor

Distinguished
Apr 28, 2009
663
0
18,980
Look man...they may be clocked higher...but we are talking about 4-5fps increase here...if that's your idea of a good deal then you are mistake. Any veteran poster here will ding you about that...maybe you should stick to your OC club that knows better...right?
 
G

Guest

Guest
if you are going to be running a 32 bit version of windows realize that it can only address 4 gigs of memory total. This includes the video card memory, so a l gig card will leave less than 3 gigs system ram even though you installed 4 gigs of DIMMs. A 64 bit OS won't have this limitation.
 

neon neophyte

Splendid
BANNED
the price difference is 20-25 bucks, and yes, 4-5 frames is worth it. 5 frames is a lot.

to the gent above me: the ram restriction on 32 bit operating systems was removed in windows 7. not that everyone uses windows 7.
 

nachota1987

Distinguished
Mar 4, 2009
171
0
18,680
ive been looking at prices at the store were im going to buy

its in spain -> appinformatica.com

sapphire 4870 512mb = 168,40 euros

gigabyte 4870 1gb = 193,90 euros

im leaning towards the 512 XD

this store is the best i could found in spain..anyone knows any other store?
 

neon neophyte

Splendid
BANNED
i dont do a lot of shopping in spain. 25 euro difference? id get the 1gb. ESPECIALLY if you plan to crossfire. the realm changes entirely when you crossfire. suddenly, you have crazy gpu processing power... but no more ram. you will create a bottleneck with the ram (having to read from the harddrives every second is a real hit on performance.)