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Crossfire 6870 vs. 7950/7970

Af Gigabruger Mathiaslp | 12-02-2012 14:49 | 1585 visninger | 22 svar, hop til seneste
Som overskriften siger. Hvad vil være den bedste opgradering for mig, kontra pris? Jeg har allerede et 6870 kort, og et til koster 1200kr, så har jeg crossfire. Eller skulle jeg sælge mit 6870 og erhverve mig et 7950 eller 7970, og hvor stor vil forskellen være på crossfire, og så disse to nye kort? PT. Spiller jeg BF3 på High, uden AA osv, og det kører ganske udemærket. Men hvad vil jeg være i stand til med delvist crossfire 6870 og 7950/7970? Setup: CPU i7 920 @ 3.4GHz Mobo: Intel DX58OG RAM: Corsair Vengeance 6GB 1666MHz PSU: Corsair 750W
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Bruger min iPhone til stortset alle svar jeg laver på HOL.dk, så evt. stave fejl kan forekomme.
#1
enjoidk
Ultra Supporter
12-02-2012 15:00

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tag du og køb et ektra 6870 og kør cf! - overclock dem og så score de næsten på højde med 7970
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#2
e-gamer
Giga Nørd
12-02-2012 15:16

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CF/SLI = quantity, not quality. You will have more fps ... but also more problems as CF/SLI is more problematic than one card solution. If you don`t like problems - HD 7950/7970. If one card allows you to play all games with ultra details + AA/AF and you can afford it ... what`s the point of having more problematic solution? Not saying about more power need = PSU will be hot, under pressure = loud. CF/SLI cards are also very hot, especially the one above ... which "cools" itself with a hot air from the card which is placed below. Do you have a 60Hz monitor and play with v-sync on? What`s the monitor`s resolution?
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P183 V3 @ 400rpm, P8P67 Deluxe, i7-2600K @ 4GHz, NH-D14 @ 400rpm, C300 128GB, 4GB 1600/7, AX850, GTX 580 + Alpenföhn Peter @ 500rpm ... 2 x BenQ 120Hz
#3
enjoidk
Ultra Supporter
12-02-2012 15:20

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men et køb af ektra gfx til ca 1000 - fremfor opgradering til 3500 giver mere mening i min verden! eller? og cf er altså ikke kun problemer!
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#4
e-gamer
Giga Nørd
12-02-2012 15:24

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# 3 Well ... if money isn`t a problem ... there`s a problem ;) I don`t like problems, i always use one high-end graphic card and i`m happy with it = no problems to play games with maxed settings + AA/AF on. PSU is silent, temperatures are fine, no worries ;) But if someone don`t care that much about temperatures, noise ... then CF/SLI isn`t bad = but he has to be prepared for potential problems and there`s a micro-stuttering thing: http://www.tomshardware.com[...]
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P183 V3 @ 400rpm, P8P67 Deluxe, i7-2600K @ 4GHz, NH-D14 @ 400rpm, C300 128GB, 4GB 1600/7, AX850, GTX 580 + Alpenföhn Peter @ 500rpm ... 2 x BenQ 120Hz
#5
MadsBirch
Monsterbruger
12-02-2012 15:29

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Jeg stod i samme situation men valgte at købe et ekstra 6870 til dels på grund af prisen men også fordi kortene kører rigtig godt sammen i CF. Men 6870 i cf kan ikke køre Battlefield 3 på ultra. Der kommer kæmpe fps drops. Så ville nok tage et 7950 da det har 3gb istedet for 1 gb som ikke er nok i mange tilfælde.
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i5 2500k@ 4,5 - Asrock Extreme4 - 8gb 1600 - Corsair Series GT, 120 gb - HD6870 - Corsair Carbide 500r
#6
Mathiaslp
Gigabruger
12-02-2012 15:33

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Hvor kan jeg så anskaffe mig et "billigt" 7950 henne? Eller dvs. hvor er det billigst :)
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Bruger min iPhone til stortset alle svar jeg laver på HOL.dk, så evt. stave fejl kan forekomme.
#7
enjoidk
Ultra Supporter
12-02-2012 15:34

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#4 vi er slet ikke uenige :) ville også klart vælge et 7970, men tolker lidt #0 spørgsmål som, hvis han kan spare penge, vil han gerne spare dem! kan se at op spiller bf3, og med den rigtige driver, er der ingen problemer med stuttering!
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#8
Mathiaslp
Gigabruger
12-02-2012 15:37

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Jeg synes at 3500 er mange penge at smide efter et grafikkort må jeg indrømme, når man kan få noget udemærket til 1000kr ekstra. Spørgsmålet er bare, hvordan det yder? Vil jeg kunne mærke forskel i fx. BF3, eller skal jeg have et 7950 for at kunne mærke forskel? Er der virkelig problemer med crossfire? Jeg er ikke den sindssyge computer haj, så ville være ærgerligt hvis det slet ikke funker.
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Bruger min iPhone til stortset alle svar jeg laver på HOL.dk, så evt. stave fejl kan forekomme.
#9
enjoidk
Ultra Supporter
12-02-2012 15:41

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bf3 og cf går hånd i hånd! 99% udnyttelse af både gpu1 og gpu2 når jeg spiller!
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#10
Ilwaz
Supporter
12-02-2012 15:42

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#8 Du kunne osse gøre det virkelig ekstreme Købe det her http://www.edbpriser.dk[...] Det er 2 6870 i et og det dræber fustændlig microsuttering.
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#11
MadsBirch
Monsterbruger
12-02-2012 16:59

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Køb ikke hd 6870 CF hvis du vil spille i ultra. 1 gb vram er for lidt og giver problemer i Battlefield 3 og større spil fremover: http://hardforum.com[...]
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i5 2500k@ 4,5 - Asrock Extreme4 - 8gb 1600 - Corsair Series GT, 120 gb - HD6870 CF - Corsair Carbide 500r
#12
e-gamer
Giga Nørd
12-02-2012 17:09

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# 11 And you know it thanks to some forum answers ... where people were guessing what`s wrong with someones PC - who was thousands km away from them, right? :D
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P183 V3 @ 400rpm, P8P67 Deluxe, i7-2600K @ 4GHz, NH-D14 @ 400rpm, C300 128GB, 4GB 1600/7, AX850, GTX 580 + Alpenföhn Peter @ 500rpm ... 2 x BenQ 120Hz
#13
MadsBirch
Monsterbruger
12-02-2012 18:07

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#12 No, I know that because of my rig with hd 6870 CF, 30 centimeters away...
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i5 2500k@ 4,5 - Asrock Extreme4 - 8gb 1600 - Corsair Series GT, 120 gb - HD6870 CF - Corsair Carbide 500r
#14
e-gamer
Giga Nørd
12-02-2012 19:09

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# 13 1. What were those problems that not enough vRAM was responsible for? "1 gb vram er for lidt og giver problemer i Battlefield 3 og større spil fremover:" 2. How did you find out that it`s exactly vRAM`s fault? 3. How did you measure vRAM`s usage? Gpu-z? Are you 100% sure that this measure tool is reliable?
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P183 V3 @ 400rpm, P8P67 Deluxe, i7-2600K @ 4GHz, NH-D14 @ 400rpm, C300 128GB, 4GB 1600/7, AX850, GTX 580 + Alpenföhn Peter @ 500rpm ... 2 x BenQ 120Hz
#15
MadsBirch
Monsterbruger
12-02-2012 20:09

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#13 1. I have to say it is generally known that 1gb is not enough to play Battlefield in Ultra.. But no I´m not an expert, but nevertheless I KNOW the problem is there. No matter what´s causing the problem it´s there and that´s all I´m telling #0. Problems with bigger games in the future have to be expected when the only become bigger. 2. It could be driver-problems in some cases, but with hd6870 there no doubt it´s lack of memmory. 3. I did not, but watch this: http://www.youtube.com[...] up to 1300mb = problems if you only have 1000 mb. And no, even though you have 2 cards with 1 gb you do not have 2 gb. But hey, this should not be a fight between us who is right and wrong. Just read my posts before posting your smartass comments.
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i5 2500k@ 4,5 - Asrock Extreme4 - 8gb 1600 - Corsair Series GT, 120 gb - HD6870 CF - Corsair Carbide 500r
#16
e-gamer
Giga Nørd
12-02-2012 20:44

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1. "generally known that 1gb " - it really means nothing, no facts, no professional reviews, another meaningless statement. 2. How do you know that? - "with hd6870 there no doubt it´s lack of memmory." = you did some testing having proper knowledge - that`s why you say so, right? Unfortunately i was right, it wasn`t a forum, but youtube ;) OC3D is just ... guys who makes movies about ... everything ;) 09:56 - "twelve hundred and twenty nine ..." should be megabytes, not "megabits" ;) So ... :D 3. Yes, they are using Gpu-z to measure it ... but who said that gpu-z don`t measure the biggest available amount of memory? There`s many gpu-z tests and different people have different values, so ...? I won`t be also ... a wizard, how do you know which problems will be in the future? oO Do you know the future? Have you been there? oO And that`s all for me. I`m not vRAM measure specialist so i won`t be guessing how much RAM is needed and i won`t be telling any statements, and for god sake ... i won`t be reading the future! :D But the thing is that ... you guys also have no idea about it ... but you make those "fake" statements. Of course nobody said hol hast to be professional, so ... i probably shouldn`t care that much. It`s not me who is being fooled.
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P183 V3 @ 400rpm, P8P67 Deluxe, i7-2600K @ 4GHz, NH-D14 @ 400rpm, C300 128GB, 4GB 1600/7, AX850, GTX 580 + Alpenföhn Peter @ 500rpm ... 2 x BenQ 120Hz
#17
MadsBirch
Monsterbruger
12-02-2012 21:44

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1. No facts?? Did you watch the video? 1358mb at some point. Year since I posted last time I have actually done some testing and in 9 out of 10 cases it was because of lack og memmory stuttering started. But as i said games also stutters when memmory ussage does´nt rise above 1 gb. 3. You can also question how reliable the different meassuringprograms are but to say that everyone apart from you have misunderstood how the programs work is crazy. "Reading the future", please stop being that desperate. Take, every demanding games in ultra and try play them on a card with only 1 gb. No wait you could do at a card with 500 mb because that is what you are really saying. But hey, just try out for your selves and stop crying about meassuringprograms being right or wrong. And in the end I know you will recommend #0 to buy 7950, just as i me. The only differnce between my recommendation and yours is that I have actually know what I´m talking about. I´m playing right know, lack of memmory is not very playable.. If that is a fake statement, well come on. Why do you even post on this thread when you have to be an expert to help anybody according to you? Klaphat :b I think that was all, right? ;)
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i5 2500k@ 4,5 - Asrock Extreme4 - 8gb 1600 - Corsair Series GT, 120 gb - HD6870 CF - Corsair Carbide 500r
#18
e-gamer
Giga Nørd
12-02-2012 21:58

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# 17 yyy ... it looks for me ... that it looks for you ... that everything is just a matter ... of vRAM oO I`m not gonna say more about it ... because i don`t want to waste a week for getting knowledge, testing ... to become a vRAM expert, i got other things to do. What i can see - you aren`t also an expert, sorry to say that ... but that`s the truth. Here you can read about micro-stuttering: http://www.tomshardware.com[...] - and for god sake ... please don`t say that micro-stuttering is a matter of vRAM! And about videos, different ways to show some things, take a look - why not recommending GTX 580 if it`s better than HD 7970? http://images.anandtech.com[...] http://images.anandtech.com[...] = using "different methods" you can show whatever you want. That`s why having proper knowledge is so important = you can see those fakes. Of course for someone who has knowledge it would be obvious that those 2 benchmarks don`t show the reality because Dirt 3 and Civilization V are "pro Nvidia" games. P.S. I`ve bought my first PC ... the year you were born :D
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P183 V3 @ 400rpm, P8P67 Deluxe, i7-2600K @ 4GHz, NH-D14 @ 400rpm, C300 128GB, 4GB 1600/7, AX850, GTX 580 + Alpenföhn Peter @ 500rpm ... 2 x BenQ 120Hz
#19
MadsBirch
Monsterbruger
12-02-2012 22:29

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I´m glad you agree with me on that one. Okay you know alot about recommending the wrong things and how to convince people. But our discussion started when you thought you were a really smartass when you said i got my knowledge from forums and youtube. You were just missing the minor detail i actually own those cards. And when you find out, that you fucked up once you started with your expert talk and that you´re older. Ohh you know what that smells of? Since 1994? Okay, then you have to be right. I see. But maybe what you read is not as valuable as what I experience? Just don´t question others help before you know what knowledge they have just because you think you are better, like many others in here.
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i5 2500k@ 4,5 - Asrock Extreme4 - 8gb 1600 - Corsair Series GT, 120 gb - HD6870 CF - Corsair Carbide 500r
#20
Ilwaz
Supporter
12-02-2012 22:48

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#19 Du misser jo total pointen, E-Gamer har jo helt ret i det med dine kilder. Derudover kan du jo heller ikke forudsige fremtiden og Du er jo ikke ekspert, du går bare udfra at det er vram der er problemet. Jovist du kan sagtens have ret 100%, det siger jeg ik. Men hav et mere åben syn på sagerne. Istedet for blankt at afvise det.
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#21
MadsBirch
Monsterbruger
12-02-2012 23:05

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#20 Arr, e-gamer kritiserede mine links fordi de understøtter hvad jeg siger. Nemlig at Battlefield 3 bruger mere end 1 gb i Ultra. Den er ikke så meget længere, da #0 vil vide om han skal købe 6870 cf eller 7950... #0 Køb ikke 6870 hvis du ikke gider rode med drivere, stort strømforbrug og sidst men ikke mindst dårlig performance i Battlefield 3 på ultra. Hvad tror du du er? Du skal ikke fortælle mig hvad jeg skal og ikke skal.
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i5 2500k@ 4,5 - Asrock Extreme4 - 8gb 1600 - Corsair Series GT, 120 gb - HD6870 CF - Corsair Carbide 500r
#22
e-gamer
Giga Nørd
12-02-2012 23:07

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# 20 Indeed. # 19 yyy ... i`m out :) It`s a pure waste of my words and time here.
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P183 V3 @ 400rpm, P8P67 Deluxe, i7-2600K @ 4GHz, NH-D14 @ 400rpm, C300 128GB, 4GB 1600/7, AX850, GTX 580 + Alpenföhn Peter @ 500rpm ... 2 x BenQ 120Hz

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