[H] SLI vs Crossfire GTX 780 OC 6GB vs. R9 290X 4GB Overclocked at 4K

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SirPauly

Diamond Member
Apr 28, 2009
5,187
1
0
We can even see this on how NV vs. AMD marketed this generation of cards. NV hardly marketed them for 4K gaming (besides Titan Z).

I don't know ---extreme?

Introducing The GeForce GTX 780 Ti:

in 2-Way SLI, the GeForce GTX 780 Ti draws on its incredible performance to power the latest and greatest games at 3840x2160 on next-generation “4K” Ultra HD monitors, with max game settings, giving you an unprecedented level of image quality and game detail.

4K is the ‘next big thing’ for enthusiast PC gamers, as the following Assassin’s Creed IV: Black Flag 4K screenshot exemplifies.

http://www.geforce.com/whats-new/articles/introducing-the-geforce-gtx-780-ti



GeForce GTX Is Powering The 4K Revolution, The Next Big Thing For PC Gamers

Today we welcome a new innovation, one that will revolutionize the way you view your games. Companies call it Ultra HD, UHD, UHDTV, 4K Ultra HD, and 4K, but all you really need to know is that new "4K" 3840x2160 monitors feature four times as many pixels as the most commonly used 1920x1080 screens, opening your eyes to rich, superbly-detailed worlds at a time when consoles struggle to run at 1280x720. If you have a high-end GeForce GTX PC, you’re ready for the revolution.

http://www.geforce.com/whats-new/ar...k-revolution-the-next-big-thing-for-pc-gamers


You're actually implying that nVidia doesn't care or market 4K!
 

Stuka87

Diamond Member
Dec 10, 2010
6,240
2,559
136
XDMA is probably the biggest reason AMD wins these shootouts. But I think nVidia having fewer ROP's also has a big impact. If 4K is the future, nVidia really needs to move up to a higher ROP count.

Great review.
 

chimaxi83

Diamond Member
May 18, 2003
5,649
61
101
Does any of this translate to resolutions most of the world is using? Let's be honest, 4K numbers are mostly meaningless right now, and not indicative of what most gamers will experience.
 

caswow

Senior member
Sep 18, 2013
525
136
116
i always hear amd cant downsampling and so on now 4k is nothing to talk about?
 

Attic

Diamond Member
Jan 9, 2010
4,282
2
76
Does any of this translate to resolutions most of the world is using? Let's be honest, 4K numbers are mostly meaningless right now, and not indicative of what most gamers will experience.

IMO 4k still requires 3 cards min. The performance of the dual cards at 4k is interesting because it pushes them so hard. The three card setup is where the 295x2 + 290x is interesting/great for 4k.

I think most enthusiasts are gaming 1080P, 1440P, 1600P with very few at 4k. I'm on 1080P but still interested how the best cards from each camp duke it out at the ultimate resolution. This changes the VRAM argument for a lot of folks, 4k is pretty definitive that you want >3gb.

Next up for [H], 2x and 3x Titan Black vs 3x 290x???? Really for nVidia at 4k I think the Titan Black needs to get into the ring.
 

RussianSensation

Elite Member
Sep 5, 2003
19,458
765
126
Next up for [H], 2x and 3x Titan Black vs 3x 290x???? Really for nVidia at 4k I think the Titan Black needs to get into the ring.

It doesn't make sense to compare $2,000 GPU setup against $1,000 or even worse $3,000 vs. $1,500. NV will never win that comparison since even if the 3 Titan manage to win by 10%, ultimately it is an waste if you need to pay thousands more. Secondly, I find it highly unlikely that someone will be interested in spending $2-3k for gaming now when GM204 should not be too far away. As far as 4K gaming is concerned right now, the only reasonable option is indeed 290/Xs or for someone who has $ to burn, 295X2+290X although [H] already noted that 3x after market 290s are just as good.
 

n0x1ous

Platinum Member
Sep 9, 2010
2,572
248
106
It doesn't make sense to compare $2,000 GPU setup against $1,000 or even worse $3,000 vs. $1,500. NV will never win that comparison since even if the 3 Titan manage to win by 10%, ultimately it is an waste if you need to pay thousands more. Secondly, I find it highly unlikely that someone will be interested in spending $2-3k for gaming now when GM204 should not be too far away. As far as 4K gaming is concerned right now, the only reasonable option is indeed 290/Xs or for someone who has $ to burn, 295X2+290X although [H] already noted that 3x after market 290s are just as good.

not to mention the 6gb didnt seem to help the 780's that much anyway......its the ROP's and XDMA
 

BrightCandle

Diamond Member
Mar 15, 2007
4,762
0
76
6GB of VRAM really doesn't make any difference, all the data says its basically a worthless expense. Its either a driver problem, a core hardware issue like the ROPs or the transfer bridge adding too much latency. Hard to know really but its been consistently the case the 290's have been better at 4k since they were released. At lower resolutions the 780's do a lot better, so something isn't scaling all that well.

Admittedly Nvidia is competing with a much older architecture, the 290's are a new updated architecture where Nvidia is still using Gk110's from back 2 years ago in its top end cards. 4k wasn't really a consideration then, and arguably its still not when it really requires dual cards to use it.
 

exar333

Diamond Member
Feb 7, 2004
8,518
8
91
Unfortunately you have to choose between either CF (and crossing your fingers the game profile actually works) or using SLI, which may not be as smooth.

CF works extremely well, or it doesn't work at all. SLI will work better and with less bugs (usually) but is definitely showing it's age with 4K resolution.
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
106
6GB of VRAM really doesn't make any difference, all the data says its basically a worthless expense. Its either a driver problem, a core hardware issue like the ROPs or the transfer bridge adding too much latency. Hard to know really but its been consistently the case the 290's have been better at 4k since they were released. At lower resolutions the 780's do a lot better, so something isn't scaling all that well.

Admittedly Nvidia is competing with a much older architecture, the 290's are a new updated architecture where Nvidia is still using Gk110's from back 2 years ago in its top end cards. 4k wasn't really a consideration then, and arguably its still not when it really requires dual cards to use it.

4K is the whole reason for the 6gig. 3gig wouldn't have been enough. So, in this instance 6 gig does matter.

780 still looses to 290X at lower res too. The 780 trades blows with the 290 non X @ 1080.
 

RaulF

Senior member
Jan 18, 2008
844
1
81
Hr also said this:


I think the reason the 780 ti doesn't get 6 gig is because they want you to buy Titans.

Yup, damn you Nvidia, damn youuuuuuuu.

Unfortunately you have to choose between either CF (and crossing your fingers the game profile actually works) or using SLI, which may not be as smooth.

CF works extremely well, or it doesn't work at all. SLI will work better and with less bugs (usually) but is definitely showing it's age with 4K resolution.

And that i think is the bigger issue, AMD drivers are still not where they should be in that aspect. If the profile works is awesome, if it doesn't D:
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
106
And that i think is the bigger issue, AMD drivers are still not where they should be in that aspect. If the profile works is awesome, if it doesn't

You might be judging from past, older experience. Crossfire is just a lot better than it used to be. Are there going to be games it doesn't work in... Sure, but SLI doesn't work in everything either.
 

exar333

Diamond Member
Feb 7, 2004
8,518
8
91
You might be judging from past, older experience. Crossfire is just a lot better than it used to be. Are there going to be games it doesn't work in... Sure, but SLI doesn't work in everything either.

Driver-wise, I would be equally happy on a single GPU be it AMD or NV. Running 2 cards, I definitely would favor NV (but not by a HUGE margin). When you are talking 3+ cards, NV is much better.

You can look up a lot of threads where multi-GPU support completely broke for a lot of games (including Crysis 3) on 3+ Hawaii cards when you upgraded past 14.4. NV still has a better driver team IMHO, but the whole multi-GPU 'experience' is why I stick to a single GPU now. It's just not worth it for me to spend the time tweaking and restoring older driver versions just to try and use the $$$ equipment I bought. They need to make running multi-GPUs 'transparent' to the user and have the driver manage the available resources vs. relying on game profiles. This should fall on both the GPU maker and game company to make this happen.
 

VulgarDisplay

Diamond Member
Apr 3, 2009
6,193
2
76
Driver-wise, I would be equally happy on a single GPU be it AMD or NV. Running 2 cards, I definitely would favor NV (but not by a HUGE margin). When you are talking 3+ cards, NV is much better.

You can look up a lot of threads where multi-GPU support completely broke for a lot of games (including Crysis 3) on 3+ Hawaii cards when you upgraded past 14.4. NV still has a better driver team IMHO, but the whole multi-GPU 'experience' is why I stick to a single GPU now. It's just not worth it for me to spend the time tweaking and restoring older driver versions just to try and use the $$$ equipment I bought. They need to make running multi-GPUs 'transparent' to the user and have the driver manage the available resources vs. relying on game profiles. This should fall on both the GPU maker and game company to make this happen.

The question that someone needs to investigate is if 2xhawaii cards in crossfire is smoother than 3xSLI cards due to the stuttering issues. Your framerates may be higher, but the perception of how fast it is may be slower than just 2 hawaii cards.
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
126
It is interesting that AMD and NV have basically traded places over the frame stutter issue now at 4K resolution. It's also interesting the price point these 6GB cards command over a 290X and how that extra VRAM is really not that well utilized for 4K gaming.

I'm curious if anyone here bought an NV card for 4K gaming? and if so, why?

Hopefully the new reference high end Maxwell based NV cards come with adequate VRAM for 4K gaming and have the stutter issue resolved.
 

amenx

Diamond Member
Dec 17, 2004
4,015
2,292
136
I wonder how much of a priority NV has placed on 4k over last year or two (meaning for current cards), with probably less than 1% of their customer base with that res. Yes they tout 4k in their marketing, but how much of a priority is it exactly for this near end gen of cards? Pretty sure it will be different with the 880 series, but then the 4k market will look different than it did a year ago. Have there been any compelling 4k displays out yet (IPS, solid 60hz, good connectivity options, etc)? Market still a bit immature for 4k imo, but it does look better for the upcoming year, both in terms of new and improved displays and the hardware capable of running them.
 

Johnmcl7

Member
Mar 12, 2003
64
2
71
At the moment I'd be more inclined to choose Nvidia for 4K, I've been trying to help a friend who is having issues with 4K on a pair of 290x's and a Samsung U28D590D monitor which is still not working while an Nvidia 760 I have works perfectly with each of the cables. People on this forum don't seem to have had these issues but reading around there are quite a few others having exactly the same issues which would put me off buying an AMD card for 4K. I generally favour AMD and have a pair of 6950's at the moment however I've been considering 780's as a replacement due to their high quality blower type cooler which is the reason I chose the 760 over an AMD 270.

John
 

Attic

Diamond Member
Jan 9, 2010
4,282
2
76
At the moment I'd be more inclined to choose Nvidia for 4K, I've been trying to help a friend who is having issues with 4K on a pair of 290x's and a Samsung U28D590D monitor which is still not working while an Nvidia 760 I have works perfectly with each of the cables. People on this forum don't seem to have had these issues but reading around there are quite a few others having exactly the same issues which would put me off buying an AMD card for 4K. I generally favour AMD and have a pair of 6950's at the moment however I've been considering 780's as a replacement due to their high quality blower type cooler which is the reason I chose the 760 over an AMD 270.

John

If that issue occurs with single 290x at 4k as well as 290x in crossfire i'd be tempted to swap out to different DP 1.2 cable even though it's working on the 760.

If your issue remains in 290x single it's not crossfire related which is interesting.
 

Johnmcl7

Member
Mar 12, 2003
64
2
71
If that issue occurs with single 290x at 4k as well as 290x in crossfire i'd be tempted to swap out to different DP 1.2 cable even though it's working on the 760.

If your issue remains in 290x single it's not crossfire related which is interesting.

It happens with a single 290x (either card) and with crossfire 290x's and it happens with different cables whereas the 760 worked perfectly with each one straight off the bat. The 290x's work fine with the screen over hdmi but at 30Hz. According to one of the cable manufacturers (Lindy), they've seen the same issues from other R9 owners and the Samsung U28D590D (single tile display or whatever the best term for it is) while other cards such as the R7 series are fine. I asked here and the people that replied said they didn't have any issues but there's a few other threads with 290x owners having exactly the same issues with the Samsung monitor as my friend is.

John
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
106
Driver-wise, I would be equally happy on a single GPU be it AMD or NV. Running 2 cards, I definitely would favor NV (but not by a HUGE margin). When you are talking 3+ cards, NV is much better.

You can look up a lot of threads where multi-GPU support completely broke for a lot of games (including Crysis 3) on 3+ Hawaii cards when you upgraded past 14.4. NV still has a better driver team IMHO, but the whole multi-GPU 'experience' is why I stick to a single GPU now. It's just not worth it for me to spend the time tweaking and restoring older driver versions just to try and use the $$$ equipment I bought. They need to make running multi-GPUs 'transparent' to the user and have the driver manage the available resources vs. relying on game profiles. This should fall on both the GPU maker and game company to make this happen.

Both companies need to optimize their drivers on a per game basis. I'm not sure what you are saying. The possible exception being Mantle.

In all of our gaming we have shown you today, in every single game AMD CrossFire feels smoother to us than NVIDIA SLI. That's right, the tables have turned on this issue. In fact we experienced many situations where there was choppiness or stuttering with the two ASUS STRIX cards in SLI. It was noticeable, and when we switched to AMD R9 290X CrossFire; CrossFire just felt smoother.

You still insist though that SLI is somehow superior. Sure an unscrupulous (or ignorant) reviewer can skew the results by finding games that one of the techs don't work with. In [H]'s case though all of the games were compatible with both technologies. One just simply performed superior to the other and it wasn't SLI.
 

RussianSensation

Elite Member
Sep 5, 2003
19,458
765
126
It happens with a single 290x (either card) and with crossfire 290x's and it happens with different cables whereas the 760 worked perfectly with each one straight off the bat. The 290x's work fine with the screen over hdmi but at 30Hz. According to one of the cable manufacturers (Lindy), they've seen the same issues from other R9 owners and the Samsung U28D590D (single tile display or whatever the best term for it is) while other cards such as the R7 series are fine. I asked here and the people that replied said they didn't have any issues but there's a few other threads with 290x owners having exactly the same issues with the Samsung monitor as my friend is.

John

I am pretty sure it's the cables. I was reading a review / thread recently where different cable brand names were mentioned and the issue you describe was very similar.

Have you tried DisplayPort 1.2 cables?
http://www.monoprice.com/mobile/Pro...categoryId=10246&subCategoryId=1024601&cpnCd=

Message KarliTos to find out what cable he uses on his 290s and the same Samsung monitor.
 

chimaxi83

Diamond Member
May 18, 2003
5,649
61
101
It happens with a single 290x (either card) and with crossfire 290x's and it happens with different cables whereas the 760 worked perfectly with each one straight off the bat. The 290x's work fine with the screen over hdmi but at 30Hz. According to one of the cable manufacturers (Lindy), they've seen the same issues from other R9 owners and the Samsung U28D590D (single tile display or whatever the best term for it is) while other cards such as the R7 series are fine. I asked here and the people that replied said they didn't have any issues but there's a few other threads with 290x owners having exactly the same issues with the Samsung monitor as my friend is.

John

It's pretty stupid, but I've had to try 3 different DP cables to try and resolve a sleep issue I was having. Either the DP ports, my monitor, the card, or the cable didn't play nice. Or maybe all 4.

I'm using an Accell cable now, and it's been fine.
 

Johnmcl7

Member
Mar 12, 2003
64
2
71
It's pretty stupid, but I've had to try 3 different DP cables to try and resolve a sleep issue I was having. Either the DP ports, my monitor, the card, or the cable didn't play nice. Or maybe all 4.

I'm using an Accell cable now, and it's been fine.

I've seen Accell cables mentioned elsewhere when another user was having trouble with an AMD R9 card and the Samsung 4K monitor although I'm not sure if they're available in Europe. For whatever reason, the AMD cards seem to be a lot more sensitive to the cable - the ones tested were both DP 1.2 certified, a DP 1.1 cable worked fine but as you'd expect was limited to 2560x1440.

John
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
106
It's pretty stupid, but I've had to try 3 different DP cables to try and resolve a sleep issue I was having. Either the DP ports, my monitor, the card, or the cable didn't play nice. Or maybe all 4.

I'm using an Accell cable now, and it's been fine.

I 2nd the Accell cables.
 

tential

Diamond Member
May 13, 2008
7,355
642
121
Not a surprise at all. HardOCP, Sweclockers, Toms Hardware reported a while back that AMD's 290Xs provide better gaming experience in 4K than even 780TI SLI. 780 SLI had no chance of winning.

Let's not forget that they are using 780 6GB too. Had they used 780 3GB SLI, it would have gotten real ugly at 4K:
http://m.hardocp.com/article/2014/0...0_oc_6gb_sli_video_card_review/3#.U9Cp4YkazCQ

Of course from all the CF bashing on our forums, which must be true we all know SLI is better for the last 100 years, right ???? ....

That's why I've been recommending after-market 290s over a single 780Ti for a long time now. People keep buying Nv because of the brand. Hopefully those who read reviews like this one become more informed.

Luckily for NV, 4K is just taking off which means by the time many of us are gaming in 4K, not many will remember that a $650 780Ti couldn't outperform a $350 290 or a $470 290X.

That's why people who buy 780Ti SLI for 4K or multimonitor gaming are throwing $700 into the toilet over 2 aftermarket 290s.
I've tried. I show benchmarks data etc.
The other person just days 780ti nvidia and they win. No amount of data sways people minds. They just will always prefer nvidia.
Been trying on Mon dedicated hardware forums to help hardware noobs out but no one cares abut benchmarks bro. Just nvidias most expensive card they can afford or nothing.
 
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