4gb 1333mhz vs 8gb 1600mhz

So ive got 4GB DDR3 1333mhz RAM from kingston in my pc, looking to upgrade to 8gb ddr3 1600mhz corsair vengeance ram! Is there a big diference, or should i spend this money on a better psu because ive got a crappy 1 and i'm going to upgrade itt to some decent psu!
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More about 1333mhz 1600mhz
  1. It depends on what applications/games you're running. You can check the requirements for most of the games (as an example, the recommended memory amount for Crysis 2 is 2GB and for NFS 2012 is 4GB). Virtualization, video or photo editing require more memory. Increasing the RAMs will not necessarily increase the performance of the PC.
  2. All I do at the moment is web browsing and play games, but i might to do some gameplays for youtube and i'll use fraps and it records short two minute clips so i have to put them together with a video editor, but that's about it!
  3. What motherboard, CPU, GPU and power supply do you use?
  4. Motherboard - Gigabyte MA770T-UD3
    RAM - Kingston 4GB DDR3 1333mhz
    GPU - ATI Radeon HD 6670
    PSU - 480w silent( don't know what make, but it cost me 15 quid so not the best!)
  5. What about if i upgrade the gpu to a gtx 660?
  6. AMD recommends a 400 Watt or greater power supply for a hd 6670. 480 might be on the edge. A better PSU is the right choice, IMO.
  7. I would choose a 600 one, if no SLI intention for the future.
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