Overclock.net › Forums › Components › Power Supplies › EVGA 850W G2 vs EVGA 1000W GQ for GTX 980 ti SLI ?
New Posts  All Forums:Forum Nav:

EVGA 850W G2 vs EVGA 1000W GQ for GTX 980 ti SLI ?

post #1 of 10
Thread Starter 
Hello everyone, currently running 1 gtx 980 ti on Corsair RM 750x, and i have another gtx 980 ti laying around, but im afraid to run SLI on current power supply.

Im going to buy at least a 850w psu to be safe, and both EVGA 850W G2 & EVGA 1000W GQ are almost the same price the 1000 GQ being 10 euros more expensive, and i would like to know if it will be better if i buy the 1000 GQ, what do you say?

Side question, do you think it would be ok if i run SLI with the current power supply until i get the new one?

Thanks.
My gaming machine
(12 items)
 
  
CPUMotherboardGraphicsGraphics
intel i7 6700 Asus Z170-A EVGA Geforce GTX 980 Ti SC+ ACX 2.0+ KFA2 Geforce GTX 980 Ti HOF 
RAMHard DriveHard DriveCooling
32GB Corsair Vengeance LPX DDR4 3000MHz Kingston SSDNow 240GB Western Digital Caviar Black 1TB Corsair H100i V2 
OSMonitorPowerCase
Windows 10 PRO 64-bit Acer Predator 165Hz, G-sync, 1440p, TN, 27" Corsair Rm 750x NZXT H440 
  hide details  
Reply
My gaming machine
(12 items)
 
  
CPUMotherboardGraphicsGraphics
intel i7 6700 Asus Z170-A EVGA Geforce GTX 980 Ti SC+ ACX 2.0+ KFA2 Geforce GTX 980 Ti HOF 
RAMHard DriveHard DriveCooling
32GB Corsair Vengeance LPX DDR4 3000MHz Kingston SSDNow 240GB Western Digital Caviar Black 1TB Corsair H100i V2 
OSMonitorPowerCase
Windows 10 PRO 64-bit Acer Predator 165Hz, G-sync, 1440p, TN, 27" Corsair Rm 750x NZXT H440 
  hide details  
Reply
post #2 of 10
http://www.eteknix.com/nvidia-geforce-gtx-980ti-6gb-sli-review/14/

I think you good on the 750x.
post #3 of 10

You should be able to use the RM750x with no problem, provided you don't overclock the video cards. I mean, judging from photos you've uploaded to your profile, it looks to me like you only have an i7-6700 which has a very low power consumption and the GTX 980 Ti's power consumption isn't super high either.

 

http://www.guru3d.com/articles_pages/nvidia_geforce_gtx_980_ti_review,8.html

 

With one GTX 980 Ti under full load in their system, their power supply pulled 332W from the wall outlet. If we assume that their PSU was 90% efficient while pulling 332W from the wall outlet, then that would mean that their computer pulled about 300W out of the PSU. Add about 250W for another GTX 980 Ti and that brings the total to about 550W. Add another 65W maximum for the CPU, and that's only 615W. The power consumption while gaming will be lower than that, so you're fully covered with the RM750x. Plus, the RMx series in particular is extremely high-end. So, even if it had to deliver 750W while gaming, it would still be a walk in the park for it. The GQ series is more mediocre in quality.

 

If you had an extremely power-hungry CPU though, then I'd be saying that you need more power.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #4 of 10
As twocables said. The current Psu is ok if not doing any OC. I Just ran into the same issue with 3way 970s. at stock my single 1000w was perfect. But with my E5-1660 @ 5ghz and the 3x 970s@1553core I have major issues. Now being fair the PSU doesn't have a chance as I have 1xssd, 4xHdd's, 2x DVD drives and it has to cope with 25x 120mm fans and they're not low RPM but 18-2000rpm so .32A+ea. In your case you should be good to get a 850-1k Psu and be set for a good bit of time.
post #5 of 10
Quote:
Originally Posted by Moparman View Post

As twocables said. The current Psu is ok if not doing any OC. I Just ran into the same issue with 3way 970s. at stock my single 1000w was perfect. But with my E5-1660 @ 5ghz and the 3x 970s@1553core I have major issues. Now being fair the PSU doesn't have a chance as I have 1xssd, 4xHdd's, 2x DVD drives and it has to cope with 25x 120mm fans and they're not low RPM but 18-2000rpm so .32A+ea. In your case you should be good to get a 850-1k Psu and be set for a good bit of time.


The drives aren't really making much of a difference (especially the solid state drive and two DVD drives), but those fans sure are. The fans are always on, but how often do the hard drives consume their maximum power and how often do the DVD drives consume their maximum power - and how much power does a solid state drive ever consume? ;)

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #6 of 10
Thread Starter 
Thanks for your answer guys, yes i have i7 6700 (non-K) and i dont overclock my video cards, honestly i didnt feel the need to OC, but 2 of my GPUs are factory overclocked, especially the second GPU laying around, im not sure if it makes a lot of difference though, i also put my full system specs in my signature, it would be great if you can take a look to other parts, got 32GB ddr4 3000mhz ram, and i got 4 fans in my case.
My gaming machine
(12 items)
 
  
CPUMotherboardGraphicsGraphics
intel i7 6700 Asus Z170-A EVGA Geforce GTX 980 Ti SC+ ACX 2.0+ KFA2 Geforce GTX 980 Ti HOF 
RAMHard DriveHard DriveCooling
32GB Corsair Vengeance LPX DDR4 3000MHz Kingston SSDNow 240GB Western Digital Caviar Black 1TB Corsair H100i V2 
OSMonitorPowerCase
Windows 10 PRO 64-bit Acer Predator 165Hz, G-sync, 1440p, TN, 27" Corsair Rm 750x NZXT H440 
  hide details  
Reply
My gaming machine
(12 items)
 
  
CPUMotherboardGraphicsGraphics
intel i7 6700 Asus Z170-A EVGA Geforce GTX 980 Ti SC+ ACX 2.0+ KFA2 Geforce GTX 980 Ti HOF 
RAMHard DriveHard DriveCooling
32GB Corsair Vengeance LPX DDR4 3000MHz Kingston SSDNow 240GB Western Digital Caviar Black 1TB Corsair H100i V2 
OSMonitorPowerCase
Windows 10 PRO 64-bit Acer Predator 165Hz, G-sync, 1440p, TN, 27" Corsair Rm 750x NZXT H440 
  hide details  
Reply
post #7 of 10
Quote:
Originally Posted by sillycookie View Post

Thanks for your answer guys, yes i have i7 6700 (non-K) and i dont overclock my video cards, honestly i didnt feel the need to OC, but 2 of my GPUs are factory overclocked, especially the second GPU laying around, im not sure if it makes a lot of difference though, i also put my full system specs in my signature, it would be great if you can take a look to other parts, got 32GB ddr4 3000mhz ram, and i got 4 fans in my case.

 

Ok, so since you do have just the non-K i7-6700, you're good to go. You don't need to buy a new PSU.

 

Memory makes no difference really, and neither do 4 fans. You'd need a few dozen fans to begin making me worry. Even then, I'd be asking how you run those fans - always at full blast, lowest speed, etc. So yeah, you're all set.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #8 of 10
You dont need a new PSU so buying a new one is a waste of money unless you are going to BIOS volt mod your video cards
Your system wont draw more then 600 watts which leave you with at least 150 watts extra.
Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Dali Opticon Vokal x2 Dali Opticon 2 x2 Dali Opticon 1 
AudioOtherOther
Dali E12 F Subwoofer CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
Seravee
(27 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Dali Opticon Vokal x2 Dali Opticon 2 x2 Dali Opticon 1 
AudioOtherOther
Dali E12 F Subwoofer CableMod E series PSU cable set CableMod LED Strips 
  hide details  
Reply
post #9 of 10
Thread Starter 
Glad that i wont spend +150 euros more ^^

Thank you all.
My gaming machine
(12 items)
 
  
CPUMotherboardGraphicsGraphics
intel i7 6700 Asus Z170-A EVGA Geforce GTX 980 Ti SC+ ACX 2.0+ KFA2 Geforce GTX 980 Ti HOF 
RAMHard DriveHard DriveCooling
32GB Corsair Vengeance LPX DDR4 3000MHz Kingston SSDNow 240GB Western Digital Caviar Black 1TB Corsair H100i V2 
OSMonitorPowerCase
Windows 10 PRO 64-bit Acer Predator 165Hz, G-sync, 1440p, TN, 27" Corsair Rm 750x NZXT H440 
  hide details  
Reply
My gaming machine
(12 items)
 
  
CPUMotherboardGraphicsGraphics
intel i7 6700 Asus Z170-A EVGA Geforce GTX 980 Ti SC+ ACX 2.0+ KFA2 Geforce GTX 980 Ti HOF 
RAMHard DriveHard DriveCooling
32GB Corsair Vengeance LPX DDR4 3000MHz Kingston SSDNow 240GB Western Digital Caviar Black 1TB Corsair H100i V2 
OSMonitorPowerCase
Windows 10 PRO 64-bit Acer Predator 165Hz, G-sync, 1440p, TN, 27" Corsair Rm 750x NZXT H440 
  hide details  
Reply
post #10 of 10
Quote:
Originally Posted by sillycookie View Post

Glad that i wont spend +150 euros more ^^

Thank you all.

 

Me too! :)

 

You're welcome.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › EVGA 850W G2 vs EVGA 1000W GQ for GTX 980 ti SLI ?