Well, a few weeks ago i found out that my GPU was a ATI HD5570, and not a HD4650 that i thought i was, and the 5570 is better then the 4650, but after i found out that my GPU was better then i thought, my PC have gotten slower and more laggy... WTF?  

maybe you installed the wrong drivers ? It could be your hard drive is failing !

Wrong drivers seem likely, given the fact that you thought your card was another model you probably installed the incorrect drivers. I would advise you to uninstall said drivers and remove any traces left behind with a tool such as driver sweeper and install the correct ones.

No, it can't be the drivers. I haven't installed/uninstalled any drivers. It's like when i found out my GPU was better then i thought my pc was getting worse... Or i might have imaged that... 

No, it can't be the drivers. I haven't installed/uninstalled any drivers. It's like when i found out my GPU was better then i thought my pc was getting worse... Or i might have imaged that... 

 

Chances are you are just thinking it slower. Also if you're telling me you haven't install any drivers once so ever, INSTALL OR UPDATE YOUR DRIVERS. 

 

Don't know why you would post about your computer magically getting slower, doesn't work like that. Either you are imaging in it, or you just happen to get a virus around the time you found out.

What makes you think it's the type you said? If you want to know for sure what kind it is, try opening up the computer and checking for a label.

What makes you think it's the type you said? If you want to know for sure what kind it is, try opening up the computer and checking for a label.

I looked trough BIOS and found these lines:

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Display Devices

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          Card name: AMD Radeon HD 5570

       Manufacturer: Advanced Micro Devices, Inc.

          Chip type: AMD Radeon Graphics Processor (0x68D9)