CrossFireX is AMD's (previously ATI) name for their multi-GPU solution, that allows up to 4 graphic processor units to be connected together in one computer. This allows for each of the processing units to take part in the computational workload and improve the overall computational performance.

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How come stacking video cards in SLI or Crossfire for example does not double performance?

When you SLI or Crossfire graphic cards how come you do not see a theoretical double in performance? Right now you see a 10-50%. Is it how they work or a bus performance problem or something else?
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36 views

Second PSU shuts down by itself under load

i have 2 PSU one 650watt to hold my i7-2600k 2hdd's and 1(out of 2) r9 290,the second PSU is 340watt and has only my second r9 290.When i load a game then the second psu shuts down and i get a bsod ...
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1answer
134 views

Advice on Gaming motherboard and SLI / Crossfire and HDMI/Sound connection

I have been looking at the following motherboard http://www.msi.com/product/mb/Z87M-GAMING.html#hero-overview I am a littel confused, it seems to offer a HDMI connection on board so I assume if I ...
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1answer
45 views

Computer enters strange unresponsive state when idle after motherboard replacement

A few weeks ago I was playing a game on my PC when suddenly, I heard a screech typical of what you hear right before the power cuts out via my headphones. I thought that was the case. However, my PC ...
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1answer
399 views

What difference does sharing secondary PCIe x16 with other PCIe lanes (x16 and x1s) make?

I'm about to buy a motherboard and I have a difficulty understanding how sharing PCIe lanes works. I have two motherboard options: Gigabyte GA-Z97-HD3 Gigabyte GA-Z97X-SLI. Lets call them ...
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91 views

Crossfire R9 290 not displaying anything at all

My setup: Motherboard: Gigabyte GA-Z77X-UP7 CPU: Intel 3770K PSU: Corsair RM1000 SSD: Samsung GPU: 2*Sapphire R9 290 Hi! I'm trying to upgrade my rig, with a new motherboard and a new GPU. But ...
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7 views

Crossfiring between Dual-X and non Dual-X cards

Sorry if this is a stupid question, but I can't find any information out there on what exactly "Dual-X" is. I have a Sapphire DUAL-X R9-270X which has been discontinued, but I have found a great deal ...
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720 views

How many screens do two R9 290 cards support when put in crossfire?

How many screens do two R9 290 cards support when put in crossfire? I know nvidia has the limitation of only supporting two screens when in SLI mode, what's the maximum ATI supports when using ...
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589 views

The “real” difference between crossfire and actually buying a new graphics card [closed]

Now this is obviously a very specific question but i'll try to keep it as broad as possible. My question as stated in the title would be what the 'real' difference between crossfire and a "new" ...
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2answers
3k views

Crossfire R7 260X with R9 270X?

A friend bought me a R7 260X to use with my PC. Long story short, it wasnt powerful enough for my needs and so I went and got an R9 270X that is performing much better. I have dual PCI-E slots in my ...
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1k views

Catalyst Control Center is not showing Crossfire option - Windows 7

I run two Radeon HD 5670s. They have always been linked by Crossfire. After a recent crash, I noticed both my cards in Speccy displaying a temperature. Typically my second card doesn't run hot enough ...
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1answer
422 views

SLI bridge vs powerful GPU?

I'm looking into upgrading my Gaming machine with a new GPU configuration. I want to avoid specifics and try to keep things on topic, so in general, am I likely to get better performance by putting 2 ...
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0answers
204 views

How do I get my fourth monitor to work?

I'm currently running three monitors in a fully working configuration. I have one 2560x1440 and two 1920x1080 I'd like to add an additional 1920x1080 monitor. However, I haven't managed to make it ...
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1answer
641 views

How to forcibly enable Dual Graphics/Crossfire support for Kaveri and R7 250?

I recently built one of those newfangled AMD Kaveri systems, but am having a little trouble setting it up for dual graphics/Crossfire. Here is the hardware list: Motherboard: ASRock Fatal1ty ...
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3answers
11k views

How to fix missing crossfire option in CCC?

After one of CCC updating (I don't remember what version from, one of 13.11 betas) stopped working crossfire. Now I use latest beta CCC 14.1 and can't enable crossfire because crossfire option as you ...
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1answer
555 views

Does my graphics card have to be compatible with the motherboard chipset?

I am looking to purchase to Radeon HD 7850's, these particularly, http://www.newegg.com/Product/Product.aspx?item=N82E16814150641 I want to run them in Crossfire on this motherboard, ...
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392 views

Same GPUs on Crossfire, different clock speed

I have two AMD Radeon HD3850 GPUs running on crossfire and I just noticed that they have different clock speeds. The first one(the one the displays are connected to) has the following clock speeds: ...
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1answer
96 views

Computer Freezes Upon Launching GPU Related Application

I just installed a second GPU to crossfire. When I run any application that requires the use of my GPU (ie - 3dMark, or games), my computer would freeze immediately upon launching the application. ...
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1answer
755 views

Dual Monitors - One Graphics card vs Two

I have a Dell Optiplex 790 with two Radeon HD 5450 cards (512MB Dedicated Memory) installed. Currently, I'm running two monitors off a single card. Card 1-->HDMI Splitter-->Monitor 1 ...
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1answer
926 views

Chrome lagging extremely badly after Windows reinstall

I recently installed a second 7970 in crossfire and at the same time installed Windows 8.1 Now whenever I use chrome for any longer period of time I will always hit a point where it begins to lag. ...
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56 views

Current gen Crossfire compatibility with an old Crossfire board

I've got it in mind to purchase a pair of Radeon HD7770s but the thing is my board is old. CPU-Z tells me that it's a MSI 770-G45 and although its listed as Crossfire-compatible, I'm told that the ...
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1answer
724 views

Crossfire Setup - 5 Monitors

I have 2x HD7950 graphics cards, each with a HDMI, DVI and 2x Mini Display Port outputs. Currently I have this with crossfire enabled, and 4 monitors running 1920 x 1080 on each. The display ports are ...
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3answers
634 views

Is buying 3 cheap graphics cards better than a single high end card?

I am thinking of building my own desktop computer, and I was wondering whether buying 2 or 3 low end graphics cards and running them in SLI would be faster than buying 1 high end graphics card. If ...
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2answers
420 views

Is it Possible to Hybrid Crossfire Radeon 5650 and 5670 graphics cards? [closed]

I have a Radeon 5650 graphics card which is very rare now. I wonder if I can crossfire a 5650 to work with a 5670 which is cheap and available. If I can crossfire them, will there be a performance ...
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326 views

Crossfire different graphic cards [duplicate]

Is it possible to crossfire different cards? Like a Radeon 6950 and a Radeon 7970?
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913 views

2 crossfired ATI graphic cards vs single card with double capabilities

I wonder how 2x crossfired ATI graphic cards could be compared with a single card with double capabilities? For instance, my video card (ATI 5570) has 1GB memory (128-bit). If I crossfire it with a ...
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2answers
2k views

Is better to buy one Radeon HD 7970 or two Radeon HD 7870? [closed]

The first one cost $400 and the second $200 each one. My computer has a intel ivy bridge i7 processor and 8gb of ram. I want to play games and 3d renderings. What combination is better? 7970 7870 ...
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1answer
3k views

2 X Graphic cards bridged with CrossFire and 2 Monitors with DVI

Just got new pc with 2 x Gigabyte AMD Radeon HD 7850 cards that are bridged using the included CrossFireX/SLI connector. I have 2 monitors that are exactly the same, and they both have vga connectors ...
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1answer
293 views

Crossfire with HD 5850 and other 5xxx series card

I am not too sure about the crossfire combinations. I have a HD 5850, do I have to use another 5850 to crossfire or can I use any card from the 5xxx family?
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1answer
996 views

AMD Phenom II X4 965 crossfire motherboard

I am trying to build a cheap mining rig. I wanted to use the AMD Phenom II X4 965 (HDZ965FBGMBOX) processor as it got very good reviews and benchmarks, and is inexpensive. However, I am having trouble ...
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654 views

CrossfireX 6970 2GB Running at only PCIE2.0 8x on PCIE3.0 Motherboard

I know that this question may seem strange, but it's hard to find a clear answer anywhere. I currently have the following configuration Core i5 2500k (Sandy Bridge) 16GB DDR3 RAM 2 x Radeon HD 6970 ...
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2k views

Crossfire Setup not visible in Catalyst Center

I want to setup CrossfireX on my two HD 6870s but the CrossFire tab will not show up under neither "Gaming" nor "Performance. The Catalyst Center is the version that came along on the disk. See other ...
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2answers
916 views

Are two crossfire bridges necessary

I have two Gigabyte HD4850's on a P5Q pro. The manual says 2 bridges are necessary but some fora sayit isn't. Can anyone clear this out? What's the benefit you get from two bridges over having only ...
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473 views

Ati catalyst second card shown as inactive

My second crossfired card is shown as inactive, although I know it works. In addition, I cannot manually override the fan speed, for example. Is this a known bug? Rig: ASUS Maximum Extreme i7 2600K ...
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1answer
535 views

Can I use any manufacturer's Crossfire bridge cable?

Basically, can I use any crossfire cable to connect two HD6850 cards or are there compatibility/version issues. Reference/source of info would be helpful. N.B. Please don't wander off into mobo ...
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1answer
5k views

ATI CrossFire instability and horizontal bands?

I recently added another ATI 5870 card to my system to experiment with ATI Crossfire (dual GPU) performance increases. However, I've had a lot of intermittent stability problems, most seriously a set ...
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1answer
686 views

What graphics cards are compatible with 3-way CrossfireX?

When researching desktop graphics cards, I noticed that many nVidia cards support SLI, only the most expensive support triple SLI. However, I did not see any cards that said they support 3-way ...
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1answer
3k views

AMD APU Hybrid Crossfire

I've read some impressive reports about AMD Llano, including that it can work in setup similar to Hybrid Crossfire (ie. integrated GPU with the discrete GPU). I imagine, that this will only work with ...
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1answer
428 views

Crossfire Dual Screen horizontal artifacts

With my two 5870s I have a weird problem in crossfire. I have two screens a 24''' LCD and a 37'' LED TV. When in crossfire if I play video on the second screen it gets some odd artifacts of ...
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4answers
5k views

How do I hookup a dual video card Crossfire rig to a single monitor?

I just received a new Alienware box preinstalled with two nice shiny ATI 6950 graphics cards. My goal is to use both of them to give me really good resolution and frame rate on my single monitor. ...
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1answer
910 views

Can't enable CrossfireX on 2 Diamond Radeon HD 5870

When I start Catalyst Control Center (CCC) and open AMD CrossFireX Configuration, the identify GPU button is disabled. Both cards are detected by Windows, CPUZ and GPUZ. CCC context menu shows 6 ...
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2answers
647 views

Is it better to add a second video card in Crossfire or replace an aging video card?

I am using Windows Media Center and have come across the ridiculousness that is DRM (ala can't play DVD/Blu Ray from computer through Xbox 360 extender onto the tv). I am looking to do something ...
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1answer
142 views

Is different drivers loaded for crossfired GPUs normal?

I have two Radeon 5850's in a crossfire setup, and I'm seeing some differences in GPU-Z for their drivers (the second doesn't have that "Catalyst 10.12") and what they say for Crossfire: Is that ...
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2answers
3k views

Can I easily disable Crossfire?

I have a second Radeon 5850 coming, and I'd like to see the performance that the second card offers. To do this, I'd like to try the game with Crossfire, disable it, and then try it with just a single ...
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2answers
19k views

Do I need the same brand of video card to Crossfire?

I've got an XFX 5850, and I'd like to get another to do Crossfire. Does this second card need to be an XFX or is any 5850 fine? The Sapphires, for example, are much cheaper.
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1answer
2k views

Overclocking a Dual GPU Crossfire setup?

I just added another HD 4890 to my current setup to run the two in crossfire. If I now want to overclock them via Catalyst, do I need to tweak the clocks on both the cards manually, or can I ...
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1answer
167 views

Crossfire 5870's

Recently, I got another HD 5870 to crossfire with the original one in my machine. They are made by different manufacturers but everything else is the same. I tested each card individually and they ...
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1answer
2k views

Does AMD CrossFire work in windowed mode?

I've been considering picking up two of the new 6870s to run in CrossFire, as it seems like great performance for the price. Unfortunately, I've stumbled upon some people saying that CrossFire doesn't ...
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2answers
288 views

Can two dual GPU ATI video cards run together in Crossfire?

Can I run two ATI Radeon HD 3870 X2 graphics cards together in Crossfire, or will this not work due to the dual GPUs (X2)?
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2k views

How would Crossfire 2x Radeon HD 4770 compare against a single video card?

I'm looking to pick up a used computer. It is a Phenom 955 + 4 gigs of ram + Crossfire 2x Radeon HD 4770. How would this Crossfire combo compare to a single video card?