You can probably play COD4 on low settings to medium settings, not sure about Crysis. Usually computer manufacturers have different graphics cards made for them. I have an old Dell computer at home that uses a Radeon 9800XT which does not exist, but is similar to the 9800pro. This is probably the same story with your computer. It might be similar to the 3200, but I doubt it. The only way you will know is by running a diagnostic software which can tell you the specs of your card. I personally use Everest software to tell me the specs of my computer parts, but you have to pay for that. You can probably find freeware online that is similar.