crossfire? still supported in any decent way?

[233]

currently happily running a vega 56 in crossfire with my trusty 2600k

thinking about a big of a refresh on my rig there will be a new ryzen cpu at some point but my first thought is dropping another vega 56 alongside my current one (gaming at 1440p) in fairness i dont really notice any issues currently but thinking about a nice 144hz monitor to replace my current 75hz and obviously need the gpu grunt to drive it,

for examply one of my main games is World of tanks and a single vega56 seems to hit 95-105 fps at full detail.

just how is the world of crossfire these days? been a long long time since i last tried (brace of 280x)

 

[eeii]

Both crossfire and SLI have not been in a good place at for a few years now. This is because the new API's like directx 12 and vulcan both need the developers to do the work instead of the driver. This a real shame as I used to run 2x 680GTX's in SLI years ago and got very good performance.

 

[Raiden85]

SLI is still around but modern game support is very poor at the moment unfortunately, I still use it as I do play games still that support it.

Crossfire though is pretty much dead on their newer GPU's as AMD no longer wants to support it anymore.

 

[JediFragger]

 

[Arcane]

Had loads of SLI systems and thought they were great, my last being 980ti SLI, everything worth playing worked with it at the time, GTA, COD etc. Crossfire I found to be a total PITA, so much so that I sold my 5850 Crossfire setup to get a 470gtx SLI setup even though they were hotter than Jessica Alba in a bikini.

 

[Jay85]

unfortunately dead now, had SLI 680's and SLI 980ti's and both were decent. Last game i played with decent scaling was Ghost recon wildlands with 980ti's.

 

[BUDFORCE]

I built myself a crossfired system once, 7950 I think.... Anyway whilst I do not regret it, it looked so cool with a see through case window, I wouldn't ever do it again.

Most games would work better, but honestly the step up from one GPU to crossfire REALLY depended on the game, to give an example Fallout 4 actually run worse with crossfire to the point I had to disable one of the GPUs in order to play it.

If as people say the support has got even worse then I'd definitely advise against it.

Edit: I lied it was a pair of 6950's - I had to look it up!

 

[Nasher]

SLI and crossfire are kinda dead. It never was all that great tbh.

It was supposed to be getting replaced with multi GPU support in directx, but not sure what happened to that.

 

[Phixsator]

SLI and crossfire are kinda dead. It never was all that great tbh.

It was supposed to be getting replaced with multi GPU support in directx, but not sure what happened to that.

What happened is the job being shifted to the developer so the driver teams didn't have to do oddball "hacks" to get it to work due to dubious development work. Now of course it doesn't work or it rarely works. Would be nice if there was a big overhaul to the major engines to support mGPU by default in DX12 and vulkan.

 

[apostolis_kt]

I bought 2x Sapphire vega 56s Nitro+ one LE and one non LE back when they were full price ouch, with the intention of setting them in xfire. Had them sitting because my pc being old even though it did support xfire for some reason it didnt work so used only one card while the other sat doing nothing.

1 year and a few months later I finally managed to built my new system and setup the xfire and it is in samples. Its a pain in the back side and every game i tried of the ones i want to play has an odd issue or is unplayable, to the point where I will possibly sell the second card to put the money towards a new card once new gen comes out.

Crysis 3, and Witcher 3 are the main games I tried this and crossfire loaded, but had to go back and forth with the stupid AMD Radeon tool and the latest drivers were causing issues for me. Witcher 3 run better than crysis 3 did, but there was some odd effect on screen while there was movement, kind like tearing but for more than one row of pixels if that makes sense. Crysis 3, has stupid tearing at least for me and tried all the different options on the crossfire settings.

Shadow of the Tomb raider crashes and I heard it is an issue with crossfire and not SLI.

Assassins creed Origins doesn't support sli.

World of warcraft supposedly does but only on full screen and I cannot find an option to make it full screen apart from borderless window. Not that I need it got plenty of fps but still.

I am very dissappointed with the mgpu setups nowadays because it could be a brilliant alternative, I mean it runs 78 ultra on Witcher 3 4k that is brilliant but with tearing etc I cannot play it. And now that the job is shifted to the developers I think the devs don't bother.

It is my fault for buying 2 cards before setting up the rest back then and wasted money for no reason. Oh well lesson learnt, one card from now on, or even better no more and will just stick with the consoles - prices are ridiculous for the performance we get nowadays. When 1080ti got released it was a step up yeah but expensive, then 2080ti came up with 30% more power but almost double the price so basically we didn't get an upgrade with the 20xx series..

 

[233]

tbh if i could get a 50% increase in the games i play i'd be ecstatic,

£700 on a pair of 5700xt cards and you would have something with better performance than a 2080ti at 2/3 of the price

 

[Radox-0]

AMD 5700 series (and suspect it will hold true for models since) does not support crossfire in traditional sense: https://www.pcgamesn.com/amd/rx-5700-xt-killed-crossfire

It will only support it with explicit mGPU mode in some DX12 and Vulkan games that support it, so to answer your question, crossfire is supported well with current stuff given it places onus on the devs. Buy single strongest GPU you can get.

On Nvidia side, I have SLI rigs still, however support for most games is meh. Would buy single strongest card you can afford. Some games do support SLI still and some I play, my most played games support it so it works well for me, but at this point expect SLI support in games as a bonus / nice to have rather then something expected out the box.