Posted 26 June 2012 - 09:53 PM
1. Correct, crossfire is an AMD technology.
2. SLI is an NVIDIA technology.
3. Hybrid allows an integrated AMD video card to run with any single dedicated video card from the previous series. So if you have an integrated 5670, the dedicated card must be a 4000 series card. SLI has no hybrid system.
4. Crossfire allows up to four video cards, and they dont have to be identical-as long as the first two numbers match, the rest is fine. You can for instance, crossfire a 4850 anda 4890 with no problem whatsoever.
5. SLI also can support up to 4 video cards, however, unlike AMD they do have to have identical GPUs. You can mix memory, however, it will default to the lower memory-so if one card has 512 meg of ram, and the other one gig, you will only use 512 meg of the 1 gig card.
6.yes, the cards must have support for SLI or crossfire, and the motherboard does to-though its mostly motherboard, virtually any nvidia or AMD video card out there has support for multi-GPU video cards.
7.Im not sure if hybrid will allow for more then one dedicated, it would seem useless though if you have 2 or more dedicated cards then there would be no use for the integrated-it would just slow it down.
8. in theory yes, the difference is the price advertising whatnot, but there are more differences such as quality of components, and manufacture, and some companies include different display ports, different methods of cooling, as well as certain models come with a factory overclock.
9. correct, the onboard chipset does not matter unless your planning on running multi-GPUs, then you need to make sure the motherboard supports it.
10. its debateable. In theory there isnt, but sometimes you have driver conflicts if you mix nvidia chipsets with AMD video cards, rare but it happens.
As far as performance gain, depends on the game. I run crossfire, in in CODmw3, I notice little to no difference in graphics or framerate between a single or a crossfired card, however in battlefield bad company 2 or BF3 theres a night and day difference-easily a 40-50 fps gain.
Yes and no, actually in SLI both units of ram function as one, so you see little increase there, Crossfires a bit different, but the bulk of the performance comes from the extra GPU.
and yes-as long as the chipsets right (AMD the first two numbers match, SLI the exact same GPU) the manufacturer doesnt matter.
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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