Grow some balls and eat a 20oz steak.

Wait a sec, do you have an onboard GPU you can test to possibly rule out the motherboard?

Why would you play at mobile phone resolution? You should get a console instead if you can't get a new PC.

Is your keyboard USB or PS/2? I can't see how that malware would affect it, unless its corrupted the BIOS. Look here:

http://www.bleepingcomputer.com/virus-removal/remove-antivirus-action

6 core CPU's make little difference to any game; they can barely use 2 properly and my onboard 4200 GPU ia as good as your 5450. That GPU is a joke. Why would you replace a 5750 with a GPU that is 90% slower?

The only time you don't need a GPU is if you don't want to see any images on your monitor.

Now for as the times you don't need a discrete graphics card:

When you use your computer for an e-mail/facebook/internet browsing terminal.

However this is a gaming website and everyone here pretty much needs one.

NailedGR

The onboard GPU still displays images and you can still watch Blu-Ray perfectly well without a discrete card.

Seeing as most of the posts here argue about the merits of rather expensive GPU's that may confuse buyers I though to post his thread as to when you don't need a GPU - which will include any PC that doesn't play games or does heavy editing. The onboard GPU is more than enough for anything not related to those tasks. Just redressing the balance.

Right now Coolermaster Hyper 212+ and some new thermal paste.

I had to play the game at 720p in standard DX11 fare with AF x16, "AAA setting" antialiasing (I think it's just 2x MSAA) get consistently nice framerate, and even still some parts chug on the GTX 460 1 GB equipped machine I beat it on. My 5850 in my other machine has to be set up the same way when in DX11. Even at 720p the game still looks good in DX11 because of the "standardly equiped" AA, so I don't mind the lower resolution, but 1080p sure does help take out the jaggies. It's only too bad the game is incredibly z-buffer heavy, probably due to all the transparencies and soft particles, but it makes the dusty underground environments look pretty cool and realistic.

mouthforbathory

Why didn't you disable the AA and AF and run it in 1080p?

Couldn't they release this game patched? Sloppy company. I'd rather delay the product than release it unfinished, but then more was spent on advertising instead so Treyarch obviously doesn't care as long as its gets paid.