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crossfire (do cards need to be identical?)


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#1 Zebug

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Posted 21 June 2011 - 10:04 AM

just as the topic says, one of these days I will try out the ole crossfire (that is if Battlefield 3 needs it). Anyway, I currently have a ATI 5770 linked below. Do I need to get the exact same one or will any 5770 work? For that matter would a newer 6000 series work along with it?

I've searched the forum a little and read that you SHOULDN'T mix ATI/Nvidia which makes sense to me, but I wasn't sure about differnt cards from the same maker.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102858&nm_mc=TEMC-RMA-Approvel&cm_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-


anyway, you guys freaking rock, helped me with my first build about a year ago and its still kicking tail and taking names. Thank you so much.

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#2 midou1994

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Posted 21 June 2011 - 10:38 AM

Hi


http://www.tomshardware.com/forum/245454-33-crossfire-faqs

This may help you a bit..

Edited by midou1994, 21 June 2011 - 10:38 AM.

Midou

#3 Zebug

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Posted 21 June 2011 - 01:08 PM

nice, thanks for that link.

#4 the_patriot11

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Posted 21 June 2011 - 03:33 PM

they don't have to be identical, but they have to be of the same sub series, otherwise the first two numbers have to match up. For example a 6970 and a 6950 will crossfire, while a 6950 and a 6870 will not. If the first two numbers match ur good to go if not they won't.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

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#5 killerx525

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Posted 21 June 2011 - 04:24 PM

I would doubt that Battlefield 3 needs crossfire graphcs card to play.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#6 the_patriot11

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Posted 21 June 2011 - 07:40 PM

Prolly doesnt "need" them especially with a high end card but it will make a huge difference. Adding a second 4890 to my system gave me a 50-60 fps boost over a single one in bfbc2.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#7 killerx525

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Posted 21 June 2011 - 08:42 PM

Also don't forget abouot the psu wattage and amps.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#8 whathuhitwasntme

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Posted 26 June 2011 - 07:24 AM

well if you are "adding" 4800 series, you should probably consider jumping up to a 6000 series
get ONE card for twice the frame rate, and half the electricity use
You, yes YOU! STAND STILL WITH IT! How can you have any pudding if you don't eat your meat?

#9 killerx525

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Posted 26 June 2011 - 08:12 AM

well if you are "adding" 4800 series, you should probably consider jumping up to a 6000 series
get ONE card for twice the frame rate, and half the electricity use

To correct you there, it is the 5700 series :thumbup2:

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#10 the_patriot11

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Posted 26 June 2011 - 03:41 PM

well if you are "adding" 4800 series, you should probably consider jumping up to a 6000 series
get ONE card for twice the frame rate, and half the electricity use


The reason I did not do that, was money. I had a 4890 currently, was happy with it, and even the 6870s are $200+ dollars apiece, and if I upgrade, I only get the high end parts. A second 4890, on the other hand, was only $100, and 2 4890s in crossfire will match a single 5970 in performance (minus directx11 support of course). So logically, I could spend 200 dollars on a single 6870, just to have directx11 support, or I could spend $100 on another 4890 which will match the 5970 in performance (which by the way, also outperforms the 6870) and give up directx11 support. Well, Im on a tight budget, and I already have a PSU to support the setup, hence why I did it. When it comes down to it, ya, preferably Id like to have the 6xxx series cards, but moneys tight and when it comes down to it id rather have the performance then the eye candy.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#11 whathuhitwasntme

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Posted 26 June 2011 - 03:42 PM

well I havent owned an amd card since my 4850 2 years ago, so I am not
up to speed on the correct nomenclature for them.
but you see my point rite? One good one is BETTER than 2 crappy ones!
save the planet, cut your power use UPGRADE(hey its as good an excuse as any )
You, yes YOU! STAND STILL WITH IT! How can you have any pudding if you don't eat your meat?

#12 killerx525

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Posted 26 June 2011 - 04:54 PM

well I havent owned an amd card since my 4850 2 years ago, so I am not
up to speed on the correct nomenclature for them.
but you see my point rite? One good one is BETTER than 2 crappy ones!
save the planet, cut your power use UPGRADE(hey its as good an excuse as any )

Stuff saving power, speed for the win!

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#13 the_patriot11

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Posted 26 June 2011 - 06:14 PM

well I havent owned an amd card since my 4850 2 years ago, so I am not
up to speed on the correct nomenclature for them.
but you see my point rite? One good one is BETTER than 2 crappy ones!
save the planet, cut your power use UPGRADE(hey its as good an excuse as any )



In most cases, you are correct, and I would even recomend the same thing, but like I said, I couldnt afford a new one-I only had 100 bucks, in order to purchase a card that would match 2 4890s in performance, Id have to spend 3 to 4 times that. the 4890 is not a crappy card-it was really, a outstanding card in its day, and it still is-its outdated but by no means crappy. Like I said, two 4890s will match a 5970 in performance, and outperform a single 6850 or 6870 in performance. The only thing I really sacrificed was directx 11 supprt. In my case, it was cheaper and more practical to simply throw in another 4890.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.


#14 killerx525

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Posted 27 June 2011 - 12:36 AM

It's all about the performance and it's amazing how Patriot's 2 4890 is faster then a single 5970. I should get another 5670 for my rig when i get a new motherboard since it's cheaper :)

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png





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