Overclock.net › Forums › Graphics Cards › Graphics Cards - General › R9 295x2 Quadfire or GTX 780ti 3-way SLI or other?
New Posts  All Forums:Forum Nav:

R9 295x2 Quadfire or GTX 780ti 3-way SLI or other?

post #1 of 7
Thread Starter 
Hello everyone,

Not so long ago I bought a new gaming PC. It's currently equiped with:

Cosmos 2 case
Intel i7 4930k overclocked to 4.7 Ghz with a H100i closed loop
EVGA dual classified GTX 780 ti (1230 Mhz under boost)
Corsair AX1200i PSU
Asus rampage IV BE
32GB corsair dominator platinum

Since I feel like doing a custom water cooling loop, I also want to upgrade my graphics card.

Now the question is, what would you pick in my case, Quality wise, support wise, feature wise if money isn't really that much of an object, unless it's like 2 titan Zs (get my point)...


On the one hand you have the logical way, buying MOAR GTX780 tis to get a 3 way SLI configuration. This will allow me to my PSU I currently have.
Currently, I do not really have had any issues with Nvidea, and it seems they upload drivers quite fast.
But This setup would still be limited to the 3 GB...


On the other hand you have the monster AMD graphics card, namely the R9 295x2. I would Crossfire 2 of these in order to get Quadfire.
The downside of this setup would be that my AX1200i is not enough.... headscratch.gifbigeyedsmiley.png
This Quadfire configuration pulls like 1450W, so I'd need a EVGA Supernova 1600

The monitors I'd use are 3 2560x1440 monitors, the ROG swift PG278Q namely (any better suggestions?)
The problem is these monitors have G-sync, and I doubt that this will work with any AMD graphics card ....

For water cooling, I'd go XSPC waterblocks for both CPU and the GPUs, XSPC AX360mm radiator on top (since this is the max amount suitable for the cosmos 2) and a alphacool Monsta 240 at the bottom. For fans I'd use 5 Noctua NF-F12 IndustrialPPC 2000 RPM on pull (3 for 360 and 2 for 240) and the bottom ones have some 'bad' push fan that actually DO work with the cosmos 2 fan controller..

Looking forward to your tips/suggestions
post #2 of 7
Need double the rad size
INA
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7 4960x RAMPAGE IV EXTREME 1080Ti Poseidon 1080Ti Poseidon 
RAMHard DriveOptical DriveOptical Drive
G.Skill F3-12800CL10-8GBXL Sandisk SSD DVD WRITER BLU-RAY WRITER 
CoolingOSOSMonitor
CUSTOM LOOP VISTA 64 ULTIMATE windows 10 pro Philips BDM4065UC 40" 
KeyboardPowerCaseMouse
CM STORM QUICKFIRE TK SEASONIC SS-850KM ACTIVE PFC F3 RAVEN 03 Utech Smart laser mouse 
Mouse PadAudioOther
CYBER SNIPA TRACER ONBOARD Scythe Kama Rack 5.25" Bay Multi Media / Dual 2... 
  hide details  
Reply
INA
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7 4960x RAMPAGE IV EXTREME 1080Ti Poseidon 1080Ti Poseidon 
RAMHard DriveOptical DriveOptical Drive
G.Skill F3-12800CL10-8GBXL Sandisk SSD DVD WRITER BLU-RAY WRITER 
CoolingOSOSMonitor
CUSTOM LOOP VISTA 64 ULTIMATE windows 10 pro Philips BDM4065UC 40" 
KeyboardPowerCaseMouse
CM STORM QUICKFIRE TK SEASONIC SS-850KM ACTIVE PFC F3 RAVEN 03 Utech Smart laser mouse 
Mouse PadAudioOther
CYBER SNIPA TRACER ONBOARD Scythe Kama Rack 5.25" Bay Multi Media / Dual 2... 
  hide details  
Reply
post #3 of 7
Thread Starter 
Well basicly, If I could juggle around a bit, do some mods and move my pump I might be able to get another 240mm rad...
But doubling it? that wont work without an external cooler ...
post #4 of 7
i think the it was one 140 rad per overclocked chip, yeah i had to get a pedistal for my case, the rad was massive, but silent. you really need to see what tri 780 sli guys and dual 295x2 guys say.
INA
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7 4960x RAMPAGE IV EXTREME 1080Ti Poseidon 1080Ti Poseidon 
RAMHard DriveOptical DriveOptical Drive
G.Skill F3-12800CL10-8GBXL Sandisk SSD DVD WRITER BLU-RAY WRITER 
CoolingOSOSMonitor
CUSTOM LOOP VISTA 64 ULTIMATE windows 10 pro Philips BDM4065UC 40" 
KeyboardPowerCaseMouse
CM STORM QUICKFIRE TK SEASONIC SS-850KM ACTIVE PFC F3 RAVEN 03 Utech Smart laser mouse 
Mouse PadAudioOther
CYBER SNIPA TRACER ONBOARD Scythe Kama Rack 5.25" Bay Multi Media / Dual 2... 
  hide details  
Reply
INA
(19 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7 4960x RAMPAGE IV EXTREME 1080Ti Poseidon 1080Ti Poseidon 
RAMHard DriveOptical DriveOptical Drive
G.Skill F3-12800CL10-8GBXL Sandisk SSD DVD WRITER BLU-RAY WRITER 
CoolingOSOSMonitor
CUSTOM LOOP VISTA 64 ULTIMATE windows 10 pro Philips BDM4065UC 40" 
KeyboardPowerCaseMouse
CM STORM QUICKFIRE TK SEASONIC SS-850KM ACTIVE PFC F3 RAVEN 03 Utech Smart laser mouse 
Mouse PadAudioOther
CYBER SNIPA TRACER ONBOARD Scythe Kama Rack 5.25" Bay Multi Media / Dual 2... 
  hide details  
Reply
post #5 of 7
Thread Starter 
Well you do have a point, I do need an addition radiator, atleast if I would go with the r9 295x2 quadfire.
I read through the forums and I found a guy saying that his 3-way Gtx 780 was being cooled by a 420 and a 240. He felt like it was overkill...

But the AMD will be something else ... According to this 'formula' width x length x thickness x .000291231 you can calculate roughly how many radiator space you need.
I did the calculation and I would need a AX360 + 2 240mm (60mm thick) radiators. This would roughly handle 1580 watts, which is more than enough.


But we're going a bit off-topic here, the question basically was which of the 2 options I should go for.
For example, The AMD will probably win in a head to head benchmark compairison, but if the drivers are bad, what use does it have?
I'm familiar with nvidia, the quality of the products seems good, but price/performance wise, they are quite a bit worse.
Honestly, I'm leaning more towards the 295x2 quadfire, but I have never had any experience with AMD, so maybe some people can share their opinion on this matter?
I've been reading quite a bit, and the one thing that keeps coming up about AMD is their driver support. Is it truly that bad, or are they just exaggerating?

I should find some R9 295x2 and 3-way sli owers who could share their experience biggrinsmiley.gif
Edited by Synthaxx - 6/12/14 at 9:11am
post #6 of 7
OK you did say monitors right? As far as I know there is still no support for surround with g-sync ... Will it be added? Maybe but not so far.


Nvidia cards will give you the possibility of surround g-sync or definite g-sync if you use a single monitor.
Crimson Ice
(20 items)
 
  
CPUMotherboardGraphicsRAM
I7 4930k 5.1ghz 1.456v Asus Rampage Extreme IV 2-way SLI TITANS 32 GB Patriot Viper at 2133mhz 
CoolingCoolingCoolingCooling
custom water cooling loop mcp35x dual pump with an extra 35x backup custom made radiators custom 2.5 gallon res 
CoolingCoolingOSMonitor
SDUMPER custom SS Phase Cooler Express SS Phase (Backup) win 8.1 & win 7 asus 27 inch 3d 120hz surround 3d x3 
KeyboardPowerCaseMouse
Razer Blackwidow Ultimate DUAL corsair 1050 W & corsair 1000 W Genesis 9000 reverse ATX Forgot which gaming mouse (will update) still n... 
AudioAudioAudioAudio
Asus Xonar stx Heir Audio 8.A custom IEM's Heir Audio 6.A LE custom IEM's Audio Technica AD700 
  hide details  
Reply
Crimson Ice
(20 items)
 
  
CPUMotherboardGraphicsRAM
I7 4930k 5.1ghz 1.456v Asus Rampage Extreme IV 2-way SLI TITANS 32 GB Patriot Viper at 2133mhz 
CoolingCoolingCoolingCooling
custom water cooling loop mcp35x dual pump with an extra 35x backup custom made radiators custom 2.5 gallon res 
CoolingCoolingOSMonitor
SDUMPER custom SS Phase Cooler Express SS Phase (Backup) win 8.1 & win 7 asus 27 inch 3d 120hz surround 3d x3 
KeyboardPowerCaseMouse
Razer Blackwidow Ultimate DUAL corsair 1050 W & corsair 1000 W Genesis 9000 reverse ATX Forgot which gaming mouse (will update) still n... 
AudioAudioAudioAudio
Asus Xonar stx Heir Audio 8.A custom IEM's Heir Audio 6.A LE custom IEM's Audio Technica AD700 
  hide details  
Reply
post #7 of 7
Thread Starter 
That's why the choice is quite difficult and need your help... wink.gif
For the 3 monitors I pointed out, you need 3 nvidia graphics cards, each card can take 1 monitor (1 displayport /card), well that's atleast what i read from JJ giving information about the PG278Q.

Some info about the Asus monitor can be found here:
http://pcdiy.asus.com/2014/01/pg278q-rog-swift-gaming-monitor-the-best-gaming-monitor/


So another question is whether or not to take the asus rog swift in surround, since AMD has nothing from it's added G-sync (atleast not now?). Is there a better solution monitor wise than the asus?
The amd has 4 (mini-)displayports.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Graphics Cards - General
Overclock.net › Forums › Graphics Cards › Graphics Cards - General › R9 295x2 Quadfire or GTX 780ti 3-way SLI or other?