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780 ti SLI vs 290x Crossfire @ 7680x1440

post #1 of 8
Thread Starter 
Hey guys,

My current set up:
i7-4770k
Z87-G45 MOBO
16GB DDR3
2x GTX 780ti's SLI
3x QNIX 2710 overclocked @ 116hz 7680x1440 surround

Question:
I'm having issues running BF4 @ 7680x1440 Ultra AA off. While the FPS is acceptable averaging between 60-90fps. The shuddering & input lag is terrible. After testing with MSI Afterburner, I am hitting my RAM limit frequently. My GPU both are at 99% usage as well. Temps are climbing between 65-70c. My case cooling is good, not a problem.

Am I better off w/ 2x 290x in crossfire because of the extra 1GB of Ram? I have tested my current setup using many different options. Even when downgrading the setting in 7680x1440, the game Shudders like crazy and the input lag is really bad. I have tried overclocking CPU, GPU, & RAM which makes no real difference. I have considered running 3X 780 ti's, but my Mobo and PSU wouldn't really support it. I have looked at investing in a new board with PLX chip, but this doesn't sound like a cost efficient option. I would really rather stick with 2 cards.

When I downgrade the resolution to 5835x1080 w/ bezel correct, the games runs 100% better and I average 110fps. Unfortunately, the game looks like crap. I realize i'm asking alot of my GPU to push this many pixels, but is there any amount of money and hardware that will create a enjoyable playing experience in BF4 at this resolution?

What do I need to do to get this game running right? Is it just driver & SLI optimization at this point?

Any help would be appreciated.
post #2 of 8
if indeed you are vram limited, then adding a third Ti is not going to help.
Second Intel Rig
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Second Intel Rig
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CPUMotherboardGraphicsRAM
2700 4.5/ 1.28 77 290 (2) 16 / 1866 
Hard DriveCoolingOSMonitor
1000 360/240 10 64 28 2160 
PowerCase
850 540 
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post #3 of 8
Thread Starter 
Yea, the Z87-G45 doesnt support TRI-SLI anyway. I would have to grab a board with a PLX chip to support it with 1150. If I would have researched this from the beginning, I would have settled on a LGA 2011 board & CPU, as these support more channels.
post #4 of 8
Quote:
Originally Posted by Jstilly85 View Post

Yea, the Z87-G45 doesnt support TRI-SLI anyway. I would have to grab a board with a PLX chip to support it with 1150. If I would have researched this from the beginning, I would have settled on a LGA 2011 board & CPU, as these support more channels.

Have you tested without the Monitor OC ?
TheSadFlute
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DyingHeart
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CPUMotherboardGraphicsRAM
i7-6700K TUF Sabertooth MSI 1080 Ti 16GB 2400MHz C15 
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Phenom II X4 965BE  Sapphire 790X Zotac GTX650  4GB Corsair 1066 DDR2 (1GBx4) 
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TheSadFlute
(16 items)
 
DyingHeart
(17 items)
 
 
CPUMotherboardGraphicsRAM
i7-6700K TUF Sabertooth MSI 1080 Ti 16GB 2400MHz C15 
Hard DriveHard DriveHard DriveCooling
Corsair 480GB LE 3TB WD Green Sammy 500GB 850 EVO H100i 
OSMonitorKeyboardPower
Windows 7 Pro  BenQ XR3501 Logitech G710+ EVGA G2 750W 
CaseMouseAudioAudio
Cooler Master Stryker Logitech G602 Asus Strix Nakamichi 5.1 
CPUMotherboardGraphicsRAM
Phenom II X4 965BE  Sapphire 790X Zotac GTX650  4GB Corsair 1066 DDR2 (1GBx4) 
Hard DriveHard DriveCoolingCooling
G.Skill Phoenix Pro 120GB WD 2TB Green Stock 3x120mm UQ fans 
OSMonitorKeyboardPower
W7 Pro SP1 x64 LG 21' 1680x1050 Genius  Corsair CX600 
CaseMouseMouse PadAudio
Gigabyte  E-Blue Mazer XFX WarPad On-board 
Audio
Logitech G35 
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post #5 of 8
Thread Starter 
I have. Doesn't make a whole lot of difference. Only a small amount of change to the input lag
post #6 of 8
As I said you in rhe other thread. Get 290(x) crossfire or gtx titan sli
post #7 of 8
Thread Starter 
When is the next big update to gpus coming out? What is expected performance wise?
post #8 of 8
Little Maxwell after mid 2014.

If we look at this
280gtx=460gtx 768(192 bits)
480gtx=570gtx
580oc(high end fermi)=660gtx(little kepler)
780gtx=860gtx/860ti(with 192 bits bus and 3gb vram)

For pirate islands(amd)
Hd 4890=hd 5830
5870=hd 6870oc
Hd 7970=280x
R9 290=r9 380/r9 370(x) maybe(it would come with 4gb vram the 380 non x with 384bits,and the r9 370/370x with 3gb and 256bits)


On amd the bus width can be different since the vram isnt used all the time in the same way for example 512bits from the r9 290
Edited by PontiacGTX - 3/16/14 at 2:47pm
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