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Question about an R9 390x

post #1 of 4
Thread Starter 
Hello,

Im a bit of an noob about this part. But i have 2 Sapphire R9 290x 4Gb in crossfire. But is it wise to switch to 1 R9 390X 8Gb?
Coz i read different things about it. 1 say its the same performance (but i highly doubt it) the other say its better to stick with the 2 R9 290x's coz those together are better than 1, or else switch to 2 R9 390x's. But i dont know what is better. On the other hand im not sure about to go to the R9 390x series, coz i stil can play anything (or atleast the games i play) on high or ultra. But i want to know the difference anyway smile.gif

Hope someone can tell me somethings about this.

specs:
Mobo: Asus Crosshair V Formula-Z
CPU: AMD FX-9590 at 4.7GHz cooled NZXT Kraken x61
GPU: 2 Sapphire R9 290X Tri-X in crossfire
Memory: G.Skill TridentX F3-2400C10D-16GTX
Sound: Asus Xonar Phoebus Solo + Razer Tiamat 7.1/
PSU: 1200Watt Sirtek Rock Solid
post #2 of 4
290X and 390X are the same cards, just with different core and memory clocks. RX 480 is about to be released and should match performance of 290X/390X, while consuming half as much power.
post #3 of 4
going from two 290x to one 390x you will lose lots of frames in a crossfire optimized game and gain a few in games with no CFX.

Going to two 390x you will only see a few more frames.

check the games you play and see if you would benefit at all from the extra vram at your resolution. Remember it does not stack so right now you have 4gb while in CFX.

Ha-Nocri is right that it would be a waste of money for you to upgrade to the 390x. Dual RX480's will crush dual 390x for less cost and heat.

If you have the money for dual 390x then maybe you want to look at higher end single card solutions like 1070, 1080, Fury X, 980ti...
The Machine
(19 items)
 
  
CPUMotherboardGraphicsRAM
R5 1600x @ 4.0 Ghz Asus Strix x370-F GTX 1080 16gb (2x8gb) EVGA DDR4 3000mhz CL15 
Hard DriveHard DriveHard DriveCooling
Samsung 850 Evo 512gb 1tb WD Caviar Black 2tb WD Caviar Black Corsair H110 
OSMonitorMonitorMonitor
Windows 10 Pro 64bit Asus PB278 27" 1440p ACER 22" 1080p Hannspree 22" 1080p 
KeyboardPowerCaseMouse
logitech g105 Corsair AX860 The Wesk (scratch Build) W.I.P. Logitech G9X laser 
AudioOther
Logitech Z4 2.1 Corsair Vengeance 2100 
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The Machine
(19 items)
 
  
CPUMotherboardGraphicsRAM
R5 1600x @ 4.0 Ghz Asus Strix x370-F GTX 1080 16gb (2x8gb) EVGA DDR4 3000mhz CL15 
Hard DriveHard DriveHard DriveCooling
Samsung 850 Evo 512gb 1tb WD Caviar Black 2tb WD Caviar Black Corsair H110 
OSMonitorMonitorMonitor
Windows 10 Pro 64bit Asus PB278 27" 1440p ACER 22" 1080p Hannspree 22" 1080p 
KeyboardPowerCaseMouse
logitech g105 Corsair AX860 The Wesk (scratch Build) W.I.P. Logitech G9X laser 
AudioOther
Logitech Z4 2.1 Corsair Vengeance 2100 
  hide details  
Reply
post #4 of 4
Thread Starter 
Quote:
Originally Posted by andydabeast View Post

going from two 290x to one 390x you will lose lots of frames in a crossfire optimized game and gain a few in games with no CFX.

Going to two 390x you will only see a few more frames.

check the games you play and see if you would benefit at all from the extra vram at your resolution. Remember it does not stack so right now you have 4gb while in CFX.

Ha-Nocri is right that it would be a waste of money for you to upgrade to the 390x. Dual RX480's will crush dual 390x for less cost and heat.

If you have the money for dual 390x then maybe you want to look at higher end single card solutions like 1070, 1080, Fury X, 980ti...
Ok thank you. Ill stay with the dual 290x's than. Can play GTA V on highest settings. At the moment i play alot Rocket League and Tom Clancys the Division. So im good for now.
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