Which subsystem is the bottleneck

Need to decide weather to upgrade one of the subsystems or the whole system.

The system is used to play SWTOR at 1920x1080. I get very smooth gameplay when shadow is set to low but lots of lag when set to high. (No fraps or anything to capture fps)

MB: MSI 740GM-P25 AM3 AMD 740G Micro ATX AMD Motherboard
CPU: AMD Athlon II X3 440 Rana 3.0GHz Socket AM3 95W Triple-Core
RAM: OCZ Signature 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)
GPU:ASUS EAH4870/2DI/1GD5 Radeon HD 4870 1GB 256-bit GDDR5
OS: Windows 7 64bit

Please comment only if you have experience with SWTOR since it's the only game I'm playing right now.

Thank you.
9 answers Last reply Best Answer
More about which subsystem bottleneck
  1. It's perfectly normal to get a lot of lag when you turn shadows on to high. It takes a lot from your computer to calculate how the shadows should show on the screen. Just turn it off and enjoy playing you game.

    If you really want to play with shadows on high I would suggest to upgrade your whole system. If you put in for example a ati radeon 6850 or Nvidia 560 ti your CPU will bottleneck, and you won't get max performance.
  2. Best answer
    SWTOR is a very demanding game.

    your system is balanced, but very low end gaming-wise.
    If you really want to play the game at higher settings, you will need to upgrade both the CPU and GPU.
  3. ^^ what top says. To play better, you need to get a better pc.
  4. If you had to decide one or the other definitely upgrade GPU first for best effect. You might want to try and overclock your CPU also.
  5. I would like to thank all who replied to this post as everyone that posted help me come to a decision. For some reason though I'm not able to select the best answer. If you asked me, I think that everyone that posted on this thread gave me the best answer which is to save my money to build a new system.

    I hope by that time I'll be able to save around $500 to build around a HD 7850 or nVidia equivalent which brings me to my next question. Which would be a good CPU to match this setup?
  6. Thank you Sir.
  7. Any sandybridge/ivy bridge i5 would work.
  8. Best answer selected by punnar.
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