Sign in with
Sign up | Sign in
Your question
Closed

HIS radeon hd 6950 2 gb triple crossfire(6gb) vs GTX 580 3gb sli (6gb)

Last response: in Graphics & Displays
Share
July 7, 2011 12:57:08 AM

would they perform the same? because i can get the 3 radeon cards for $810 and the two nvidia for $1065
wondering if they would perform the same playing high end games like the witcher 2 with ubersampling on
thanks in advance
john
July 7, 2011 1:08:01 AM

6950 only run 2x you cant run 3 at the same time go with nvidia their cards are the fastest
Score
0
July 7, 2011 1:17:35 AM

either i am selling my old motherboard and gpu and am buying a new motherboard that will support both
Score
0
Related resources
July 7, 2011 1:23:32 AM

i will be getting a asus P8Z68 DELUXE motherboard
G.skill Ripjaws 16gb 4x4 ram
and a i7-2600k cpu
Score
0
July 7, 2011 1:31:55 AM

Just thought i might need it in the future im not too knowledgeable when it comes to RAM :p  but thanks that will save me money lol and really? i though the i7 was more for gamers, how many ghz is the 2500k overclockable to without overloading it? off topic I know but just wondering if u knew or not? and thanks for ur fast responses and help! but with those specs which gpu config would u recommend?
Score
0
July 7, 2011 1:33:33 AM

do remember that 3 2GB cards in SLI or crossfire will remain only 2gb not 6gb.

so it would be like just having one gpu? Then what would the purpose be of running sli or crossfire?
Score
0
July 7, 2011 1:37:28 AM

which out of ur two rigs is better at performing in gaming?
also i would like to be running games like crysis 2 or the witcher 2 in ultra with ubersampling(because i heard ubersampling makes the game look alot more realistic and im guessing that that will be in most upcoming games)
Score
0
a c 144 U Graphics card
July 7, 2011 1:52:04 AM

JohnJacobs said:
do remember that 3 2GB cards in SLI or crossfire will remain only 2gb not 6gb.

so it would be like just having one gpu? Then what would the purpose be of running sli or crossfire?


physically you're going to have 6GB GDDR5 with 2 GTX580 3GB. but each of the GTX580 are going to use their own on board VRAM and will not somehow share the VRAM between the core. for example if the game use 1gb VRAM the 1st gpu will use 1GB of it's VRAM and the 2nd also will use 1GB from it's own VRAM (maybe this is not the exact way how they are going to work but i think this is the easiest way to understand it). that's why in CF or SLI 1GB + 1GB = 1GB not 2GB. this is one of the limitation from using SLI or CF. having both card or triple card work in tandem will give you more processing power due to more core available which means more performance but in real games the actual performance performance will not always double or triple because of the scaling.
Score
0
July 7, 2011 1:52:15 AM

just one more question would it be cool to run a 580 and 570 in sli?
and do u know where i can get a 570 for a good price?
Score
0
July 7, 2011 1:54:42 AM

the zotac amp edition i do not recommend as the cooler is a 3 slot size (huge) may prevent sli on certain motherboard configurations

thanks i didnt know that

physically you're going to have 6GB GDDR5 with 2 GTX580 3GB. but each of the GTX580 are going to use their own on board VRAM and will not somehow share the VRAM between the core. for example if the game use 1gb VRAM the 1st gpu will use 1GB of it's VRAM and the 2nd also will use 1GB from it's own VRAM (maybe this is not the exact way how they are going to work but i think this is the easiest way to understand it). that's why in CF or SLI 1GB + 1GB = 1GB not 2GB. this is one of the limitation from using SLI or CF. having both card or triple card work in tandem will give you more processing power due to more core available which means more performance but in real games the actual performance performance will not always double or triple because of the scaling.

thanks u cleared up my confusion some
Score
0
a c 144 U Graphics card
July 7, 2011 1:56:09 AM

you can't run the two in SLI. you have to choose between GTX580 in SLI or GTX570 in SLI. unlike CF nvidia cards must use two/three/four exact cards for SLI
Score
0
July 7, 2011 2:02:31 AM

i think i know everything i need to know

amd655- thanks for all of ur help and with the configs u gave me pretty much saving me 50% of what i was going to spend!

renz496-thanks for clearing up some of my confusion

but im going to have to give amd655 best answer

wait one more question(i know i know i said that already) but right now i have a 750 watt power supply and i was wondering if that would be powerful enough for that config?
Score
0
July 7, 2011 2:07:36 AM

LSP ultra 750w atx
Score
0
July 7, 2011 2:09:09 AM

Best answer selected by JohnJacobs.
Score
0
July 7, 2011 2:14:20 AM

no problem! youve been a great help and very patient! and saved me alot of time researching and money! :) 
Score
0
July 7, 2011 2:16:26 AM

thank u
that is all i need to know
but would be grateful to hear any other advice u would like to give me that i may need to know :) 
Score
0
July 7, 2011 2:20:36 AM

its no problem pal just go out and purchase your new setup already!
what you waiting for!
enjoy it and have fun with hours of perfect gaming

i will!! and i gotta wait to sell my old rig and get just a little more cash before i can go out and buy but it should be soon! and crap i just remembered one more thing that would completely make me sure of everything to purchase(sorry!)
if oc'ing my cpu is it necessary to buy an extra fan/and or liquid cooling system?
Score
0
July 7, 2011 2:21:42 AM

oh wow thats late and have fun with ur rigs! and no need to apologize youve given me great advice!
Score
0
a c 144 U Graphics card
July 7, 2011 3:26:24 AM

JohnJacobs said:
its no problem pal just go out and purchase your new setup already!
what you waiting for!
enjoy it and have fun with hours of perfect gaming

i will!! and i gotta wait to sell my old rig and get just a little more cash before i can go out and buy but it should be soon! and crap i just remembered one more thing that would completely make me sure of everything to purchase(sorry!)
if oc'ing my cpu is it necessary to buy an extra fan/and or liquid cooling system?


after market cooler is better for overclocking but liquid cooling is not a must. currently i'm using cooler master hyper TX3 for my E7500 @ 3.6Ghz. if you can find something like cooler master hyper 212+ that should do the job. just make sure you have good air flow in your case if you want to keep everything cool because overclocking always = more heat :) 
Score
0
July 7, 2011 6:05:16 PM

sure :)  also what fan do u use for ur oc'ed intel cpu?
Score
0
July 7, 2011 7:00:35 PM

alright cool and i can only find the dark rock pro on uk sites
Score
0
July 8, 2011 9:48:28 PM
July 9, 2011 12:52:38 AM

Quote:
any reason for 16GB ram ?
for a gaming pc that is way overkill.
a decent 8gb set will be more than enough.
also 2600k is not intended for gamers a 2500k will happily eat everything more efficiently than an i7.


The wrongness in this post alone should have discredited the rest of the nonsense being spewed by this poster...

16GB of RAM might be useful if he does other things. If the guy wants to buy $1k worth of video cards, I'm pretty sure he can splurge on some extra DDR3 if he wants it. Will he ever use more than 8GB? Probably not, but maybe one day he'll want to play Witcher 2 on a monitor, process video on another, and have 20 streams open on a 3rd.

The best part is your false statement regarding the i7-2600k. Did you not notice that CPU being used in the TH $2000 Gaming Rig build this last month? Apparently not. You also know nothing about the 2600k... Sure the 2500k is enough for gaming, but the 2600k ADDS MORE AND IS MORE CAPABLE. You should think before giving out advice in the future.
Score
0
a b U Graphics card
July 9, 2011 2:09:50 AM

If the OP wants to save some money, the 2500 would be fine, but also the 2600 is just a little better.
Also, it appears the OP isnt that well schooled in PC usage at this time, and 16 gigs of memory sounds like alot for a novice

Spending a lot of money wont help the Ops needs
Score
0
a c 271 U Graphics card
July 9, 2011 12:20:38 PM

This topic has been closed by Mousemonkey
Score
0
!