kirilmatthew
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To answer all your questions, a 300W PSU is enough to run your system, the 1Gb GDDR5 is immensely superior and dual graphics only works with HD 6xxx series, not 7xxx, so no. hope this helps
you posted on this thread http://www.tomshardware.com/answers/id-1768932/radeon-7750-run-computer.html
i have the exact same computer but you are saying that 300w is enough there
ok so to just clarify, i can run the 7750 even at full load, but i should disable the 7660D. Are you completely sure that my computer wont get ruined? Im going remove 1 2gb ram card from my computer and that leaves me with 2x4gb cards.. (how much wattage will that save, just a question).
I said 300W was enough there as well
Yes, disable the iGPU. There's no need to remove any ram from your computer, it should be really fine! That said, I'd get a new PSU anyways in the future. Not because of wattage, but because of the terrible quality in OEM PCs. Your PC will use well less then 300W. I wouldn't worry about it.
alright, well i have some more stupid questions.... How would i go about disabling the iGPU(i think that means integrated gpu) and what would happen if i left that on aswell as the 7750?, and i would like to remove the 2gb ram so my mobo can run dual channel. And just how effective is the radeon 7750, i get around 30 fps on medium-low settings bf3 at 1280x720, how much more performance should i be expecting? i am also looking forward to the new call of duty game i could run the older ones at med-high settings 50 fps.
The 7750 would automatically be the favored GPU, I don't think you'd have to do anything. Dual channel Ram is not very important when not using the iGPU, but it will perform a bit better if you don't use 10gb, which you probably don't. As for the 7750, you should get 60FPS on medium on BF3 with that resolution. The old COD games should run on high then I guess. What I'm trying to say is that its quite a significant upgrade.