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Solve : Graphics Cards Power Use.? |
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Answer» Graphics Cards Power Use. (Consumption.) My question is: Why won't the vendors give us this information? Quote from: Geek-9pm on May 16, 2012, 12:35:02 PM Sure it is recommended, they also sell power supplies. You answered your own question; nothing to see here; move along. The implied assumption that grapics card manuf. also make/sell PSU's couldn't be further from the truth... In fact find me one example if you like...GPU's don't always consume a specific amount of power. The actual power usage varies DEPENDING on the specific system configuration. Additionally, while many cards are based on the same GPU, they often have different supporting circuitry with different electrical requirements, and different bus master circuitry can impact the precise power consumption used by each graphics card as well. The reason these values are not provided by a vendor is because they are ethereal. They don't truly exist. The tests done by hardware.fr are for a specific configuration. In some instances the measured values exceed the rated TDP of the card (one specific instance being the 9800GT). But again, that's only one 9800GT; the GPU may be a Nvidia 9800GT, but the surrounding circuitry will typically differ from vendor to vendor. The recommended minimum requirements are usually calculated with the provided specifications of the NVidia GPU's themselves which are provided to component manufacturers, the power usage of the added circuitry, as well as a good padding value, and then rounded up to valid Power Supply sizes. Asking "Why don't Graphics cards manufacturers give exact numbers for power usage" is the same as asking why APPLICATION software requirements don't give precise values for memory and disk space. Different specific configurations will have different measurements. You cannot say that "This Graphics card uses exactly XXX.XX Watts of power" any more than you can state that a given application will use a specific amount of memory. Quote from: patio on May 17, 2012, 09:36:41 AM The implied assumption that grapics card manuf. also make/sell PSU's couldn't be further from the truth...Patio, the reference was to vendors, not makers. Let me elaborate.. I look at a list of graphics cards from a trusted vendor, they do not include poser consumption data. I have yet nto find a major vendor that includes the specific power requirements of the cards. Instead they say something like '...500 watt power supply recommended.' That is from the vendor, not the maker of the card. When looking at a list of cards, it would be nice if one coul compare the major features and details alongside the prices. Is there a vendor or any web site that does that? I think in the long term it would be BETTER for the vendors to be straight forward and provide the details, even if it might cut into sales of power supplies. BTW, as you know, there is a movement in the industry to try and cut down on the power consumption of desktop PCs. Some graphics chip manufactures are mowing this direction. It would be good ton know if I could improve the graphics with my current PSU and not spend big $$$. The money SAVING not upgrading the PSU could go into a better graphics. Is that not logical? Quote from: Geek-9pm on May 17, 2012, 01:51:45 PM Some graphics chip manufactures are mowing this direction. Is it a push or riding one? |
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