![]() ![]() What troubles today's power supplies is not the maximum sustained power consumption of a GPU but its power spikes, and this is why various manufacturers suggest strong PSUs for high-end graphics cards. You should also add the up to 75W that the PCIe slot can provide in these numbers. Currently, a pair of PCIe 6+2 pin connectors on dedicated cables are officially rated for up to 300W, and three of these connectors can deliver up to 450W safely. This is why the latest 12+4 pin connector that the upcoming generation graphics cards will use will provide up to 600 W of power. Although the best graphics cards are usually more power-efficient than previous generations, their power consumption increases overall. You can find a few below:Ĭonsider upcoming GPU power requirements. Several power supply sellers have calculators that will give you a rough estimate of your system's power needs. You can calculate roughly how much power your new or upgraded system will draw from the wall and look for a capacity point that satisfies your demands. You don't need to purchase much more potential power capacity (wattage) than you’ll ever use. Find out more about how we test.ĭetermine wattage requirements. Generated by PCPartPicker 10:26 EDT-0400Ĭhoose PSU based on your CPU/GPU plans, it's that simple.Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. MSI 850 W 80+ Gold Certified Fully Modular ATX Power Supply If you plan to upgrade both your CPU/GPU to an i9/RTX 3080/3090. MSI MPG A-GF 750 W 80+ Gold Certified Fully Modular ATX Power Supply If you plan to upgrade to Ryzen 9 or upgrade to an RTX 3080/3090. Prices include shipping, taxes, rebates, and discounts ![]() If you plan to forever stick with the Ryzen 7 5800X/RTX 3070 in that build.Ĭorsair RM (2019) 650 W 80+ Gold Certified Fully Modular ATX Power Supply TBH I think either power supply is going to work fine for your build, I just figure that if you're spending probably at least $1000 on a CPU + GPU it makes sense to spend an extra $20-$30 to get a power supply that you know is of the highest quality. Like I said, though, I don't believe this would happen with the 3070 as it's using the smaller GA104 die. buying a highly-rated 1000W unit that probably won't have any issues). This is why some people have been over-buying their power supplies (i.e. So, though you should theoretically be able to get away with 750W-850W for an RTX 3080 ti/10900K build, some power supplies in this range might not actually be suitable, though it's hard to know which ones without professional testing. When this happens, especially if you are using a high-wattage CPU like the 10900K as well, power supplies with over-zealous overcurrent protection settings may shut the system down, even if the power supply "should" be able to offer sufficient power for the system based on the typical power draw of the CPU and GPU. In the past this was an issue with certain GTX 970 models, as well as Vega 64, but this time around it's an issue with any of the GPUs that use the GA102 die (that is to say, RTX 3080, 3080 ti, and 3090) and also to an extent with the 6900XT.īasically what happens is that the cards can sometimes pull way more than the rated board power for just a few milliseconds, sometimes spiking to well over 500W of power for the GPU alone. So, there is a problem with certain video cards that have super-high transient power spikes of only a few milliseconds or less. Pick, Assemble and Install: Video Guide.No intentionally harmful, misleading or joke advice.No excessive posting (more than one submission in 24 hours).No selling, trading or requests for valuation.No self-promotion, advertising, begging, or surveys.No submissions about memes, jokes, meta, or hypothetical / dream builds.No titles that are all-caps, clickbait, PSAs, pro-tips or contain emoji.No submissions about retailer or customer service experiences.No submissions about sales, deals or unauthorized giveaways.No submissions about hardware news, rumors, or reviews.Please keep in mind that we are here to help you build a computer, not to build it for you. Submit Build Help/Ready post Submit Troubleshooting post Submit other post New Here? BuildAPC Beginner's Guide Live Chat on Discord Daily Simple Questions threads ![]()
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