Guru3D.com
  • HOME
  • NEWS
    • Channels
    • Archive
    • Search
    • Submit
  • DOWNLOADS
    • New Downloads
    • Categories
    • Archive
    • Search
    • Submit
  • GAME REVIEWS
  • ARTICLES
    • Editorials
    • Guru3D VGA Charts
    • Rig of the Month
    • Join ROTM
    • PC Buyers Guide
    • Dated content
    • More Categories
  • HARDWARE REVIEWS
    • Videocards
    • Processors
    • Audio
    • Motherboards
    • Memory and Flash
    • SSD Storage
    • Chassis
    • Power Supply
    • Laptop and Mobile
    • Smartphone
    • Networking
    • Keyboard Mouse
    • Cooling
    • Knowledgebase
    • Search articles
    • More Categories
  • FORUMS
  • SEARCH
    • Search Articles
    • Search News
    • Search Files
  • NEWSLETTER
  • CONTACT

New Reviews
BitFenix Pandora Micro ATX chassis review
Cooler Master Nepton 240M review
Palit GeForce GTX 980 Super Jetstream review
Samsung 850 Pro SSD review
ASRock X99 OC Formula review
ASUS GeForce GTX 980 Strix review
MSI X99S XPower AC Motherboard Review
MSI GeForce GTX 980 Gaming OC review
GeForce GTX 980 2 and 3-way SLI review
Guru3D Rig of the Month - September 2014

New Downloads
AMD Catalyst 14.9.2 BETA Download
3DMark Download v1.4.780
GPU-Z Download 0.8.0
GeForce 344.48 WHQL driver Download
HWiNFO64 4.46 Download
NVIDIA Inspector Download version 1.9.7.3
Sandra 2014 download SP3e
AIDA64 Download version 4.70
AMD Catalyst 14.9.1 BETA Download
Futuremark PCMark 8 download v2.2.282


New Forum Topics
AMD Catalyst 14.9.2 BETA (14.301.1006.0 October 9) Official 295X2 Owners Club GeForce + Triple Buffering + Windows 8 = impossible? Gigabyte GTX 980 vs. MSI GTX 980 - best cards, but which one has the best VRM chips? Is My CrossFire Setup Working Correctly? [Basic/Advanced Guide] Come back to PC gaming, is there anything I need to know? I am desperate for a new pc game. FarCry 4 set in the Himalayas? Outlast 2 Announced Lords of the Fallen



Guru3D.com » Review » GeForce GTX 780 SLI and Multi monitor review » Page 4

GeForce GTX 780 SLI and Multi monitor review - Power Consumption

by Hilbert Hagedoorn on: 05/23/2013 02:58 PM [ 21 comment(s) 5 ]

Tweet

 

Power Consumption

Right we installed the cards so let's have a look at how much power draw we measure with these graphics cards active and running.

The methodology: We have a device constantly monitoring the power draw from the PC. We simply stress the GPU, not the processor. The before and after wattage will tell us roughly how much power a graphics card is consuming under load.

Our default test system is based on a power hungry Core i7 3960X/ X79 system. This setup is overclocked to 4.6 GHz (core 1.40V). Next to that we have energy saving functions disabled for this motherboard and processor (to ensure consistent benchmark results). On average we are using a bit more than a standard PC due to higher CPU clock settings, water-cooling, additional cold cathode lights etc.

We'll be calculating the GPU power consumption here, not the total PC power consumption.

GPU STRESS TEST IDLE WATT PEAK WATT DIFFERENCE WATT IDLE WATT ESTMATED TDP
GeForce GTX 780 119 340 221 10 231
GeForce GTX 780 2-way SLI 124 544 420 20 440

Mind you that the system wattage is measured at the wall socket side and there are other variables like PSU power efficiency. So this is a calculated value, albeit a very good one.

Above, a chart of relative power consumption. Again the Wattage shown is the card with the GPU(s) stressed 100%, showing only the peak GPU power draw, not the power consumption of the entire PC and not the average gaming power consumption.

Here is Guru3D's power supply recommendation:

  • GeForce GTX 780 - On your average system the card requires you to have a 550 Watt power supply unit.
  • GeForce GTX 780 2x SLI - On your average system the cards require you to have a 800 Watt power supply unit as minimum.
  • GeForce GTX 780 3x SLI - On your average system the cards require you to have a 1000~1200 Watt power supply unit as minimum.

Though we do have some reserves calculated into our recommendation remember this; if you are going to overclock the GPUs or processor, then we do advise you purchase something with some more stamina. The minute you touch voltages on the CPU or GPUs, the power draw can rise real fast and extensively. There are many good PSUs out there, please do have a look at our many PSU reviews as we have loads of recommended PSUs for you to check out in there. Let's move to the next page where we'll look into GPU heat levels and noise levels coming from this graphics card.





24 pages « 3 4 5 6 next »



Related Articles
Palit GeForce GTX 980 Super Jetstream review
We review one of the fastest GeForce GTX 980 cards from Palit, the Super Jetstream edition. It comes all customized, has an improved Jetstream series cooler and runs factory tweaked at clock frequenci...

ASUS GeForce GTX 980 Strix review
Hot on the heels of the  ASUS GTX 970 Strix review, we test the STRIX-GTX980-DC2OC-4GD5 - ASUS GeForce GTX 980 Strix. Armed with that h00t of a cooler, a custom PCB, quality components and a factory overclock this product is...

MSI GeForce GTX 980 Gaming OC review
In this review we test the MSI GeForce GTX 980 Gaming OC edition graphics card. It is the big brother of the GTX 970 Gaming OC edition we tested last week. Armed with some more performance this model ...

GeForce GTX 980 2 and 3-way SLI review
We review GeForce GTX 980 but this time in a 2-way and 3-way SLI. We'll FLIR them, Overclock them, look at ultra HD performance as well as a micro stuttering analysis with the help of FCAT. Join us i...

© 2014