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7990 vs r9 390

post #1 of 7
Thread Starter 
should i upgrade from my r9 390 to a 7990?
post #2 of 7
No, it's not really that much faster even when crossfire works. Keep the 390.
Sorry AMD
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Sorry AMD
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Mechanical Eagle Z-77 (Cheap) Corsair SF600 Fractal Design Node 202 Logitech G400 
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fx-8350 @5ghz 990fxa-ud3 rev 1.1 PowerColor 290x @1150/1500mhz Gskill 8gig 1600mhz (2x4) @2033 mhz 
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post #3 of 7
No you'll be going backwards in chip architecture and driver support. 390s are cheap enough right now that you would be better off crossfireing them . Or if your case /mobo can't run multiple gpus you would be better off getting a r9 295x2.
post #4 of 7
NOOOOOOOOOOOOOOOOOOOOOO
Thyslexia
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Thyslexia
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post #5 of 7
no no
Delta Zero
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Delta Zero
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post #6 of 7
Only worth if it's a 1:1 trade, and you plan to mine with it.
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Power Bac G5
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post #7 of 7
For gaming I wouldn't do it, Crossfire is better than it ever has been but a strong single gpu will usually give the best all-round experience for purely gaming (though 3-way CFX is the exception since it's actually smoother than running a single gpu from my personal experience).

The one good thing about the 7990 is it's very strong FP64 performance over the 390 (7990 = 2TFlop/s vs. 390 = ~650GFlop/s) which will make a significant difference in applications that can utilize it.
The Banshee
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Under the DICE
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The Banshee
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Under the DICE
(17 items)
 
 
CPUMotherboardGraphicsRAM
R7 1700 ASRock X370 Taichi Zotac GTX 780 Ti OC @ 1250/1950MHz 1.212V G.SKILL Trident Z Black/White 2X8GB DDR4-3200 C... 
Hard DriveHard DriveCoolingCooling
Corsair Force LS 120GB WD Blue 1TB Phobya UC-2 LT XSPC Razor GTX 780 Ti Waterblock w/ Backplate 
CoolingCoolingCoolingCooling
Darkside LP 360mm Radiator Alphacool ST30 240mm Radiator Darkside D5 Vario @ 12V Setting 5 Bitspower Z-Multi 150 Red Reservoir  
CoolingCoolingOSMonitor
Darkside (TFC) 3/8 ID X 5/8 OD Red UV tubing TFC Black straight barb fittings Windows 8.1 Pro 64-bit LG 25UM57-P 
KeyboardPowerCaseMouse
Thermaltake Challenger  EVGA 1300 G2 Fractal Design Arc XL Evga Torq X3 
Mouse PadAudioOther
Steel series QCK+ Turtle Beach X12 Logitech G27 
CPUCPUCPUCPU
1150: i7 4770K & G3258 939 & 754: Many Athlon's, Opteron's & Sempron's  775/771: Many C2's, Pentiums, Celerons & Xeons 1366: i7 920 D0 and many 4c & 6c Xeon's 
CPUMotherboardGraphicsRAM
A bunch more Slot 1, S370 & S462/A CPU's. Z87 OC Formula. Plus 30 or so other mobo's. Waaaay too many to list... A table full of SDR, DDR1, DDR2 & DDR3 
Hard DriveCoolingCoolingCooling
500GB WD Caviar Blue  Bartx DICE/LN2 CPU Pot Sub-zero A/C waterchiller (-26C) CM Hyper 212+ (Troubleshooting) 
OSMonitorPowerCase
All of them. ;) Samsung S20B300 Evga SuperNova 850 B2 Homemade wooden test bench 
Mouse
Microsoft comfort mouse 3000 
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