I wanted to upgrade my hp pavilion p6000 series graphics card what watts are recommended for the computer that I have.?

P6000 is a particular generation of HP desktops. You'd have to find your specific model number which is listed on the side panel. The model number should look like......... p6510f

From what I've seen in the various models I've looked up is the p6000 series has a 250w power supply. The most modern card that should work is the GT 1030, which is a 30w card.

The answer really depends on what you want to do with this PC. If you're looking for a card so you can watch videos at higher resolution and maybe play older PC games then you could look for a GT 1030, GT 730. If you're looking for a card to run modern games then a new PC with a dedicated GPU would be the only option. The CPU's that are listed for the P6000 series, such as the Core 2 Duo e4300 or Athlon II X4 are far below the minimum requirements for modern games.

the hp website clearly shows around 20 different models so we cant be sure. However experience tells me this.... HP compaq and dell rarely design for GPU's of more than 30 watts. The max a SLOT can provide to the card that is plugged into it is 75 watts but thats shared along with the rest of the slots(usually) so you cant just go ahead and fit a 75 watt card, which would also need a 400 watt psu. You can provide the card with more watts than that via a cable from the PSU, but most HP/Dell/Compaq pc's do not have those cables because they are fitted with 350 watt or smaller PSU's. If you have a larger than 450 watt psu(which probably does have one extra Pci-e power cable) you could fit a larger wattage GPU. The watts are written on the PSU casing. Typical standard gpu's you can fit(ie less than say 40 watts) GT210/GT220/GT520 HD6450/HD5450 or the most modern GT730 GDDR5 version only.

What watts? You mean power supply? That's more of a specific question based on what graphics card you want to upgrade to. If you purchase a higher end graphics card, you may certainly need a better power supply. I would consult the box or manual or website of the video card manufacturer and see what the video card requires.

Also something to consider, is that some HPs have a specific screw pattern or physical shape to the power supply rendering the ability to easily swap for a standard/generic style power supply near impossible to mount. You may need to swap the case as well, or the power supply may not be mounted properly. I have no specific knowledge of the pavilion P6000 series power supplies. However looking at HP's instructions on how to replace the power supply, it looks generic enough that most standard power supplies should fit. Again however you should do some research before you buy.

In all honesty, it really isn't worth trying to upgrade that PC. The problem with upgrading to a newer graphics card is that your CPU will most likely be a significant bottleneck. The included PSU is pretty weak at around 250 watts, so that will significantly reduce the graphics cards you can use. If you really want to, consider getting a card that doesn't require external power, like a GTX 1050 Ti. However, as I mentioned, spending more money on this PC isn't really worth it.