RAM usage by Adobe Flash Player spikes when playing online flash games with 3D graphics

Hi. I have recently noticed a spike in RAM usage by my flash player plug-in whenever I play online flash games that use a 3D graphics engine (for example, Farmville 2 and Chefville by Zynga). Apart from the numerous times I receive an error message that the plug-in has failed, my RAM usage goes above 70% from the regular 40% with the plug-in consuming more than 1Gb. I have experienced the problem with the updated version of Adobe Flash Player on the newest releases of Firefox, Chrome and RockMelt. This spike in usage usually leads to a crash of my GPU (ATI Mobility Rabeon 4650 - 2Gb) My specs are as follows:

OS - Windows 7 Home Premium 64-bit

Processor - Core i5

Speed - 2.27 GHz

RAM - 4.00Gb (3.86 Gb usable)

HDD - 500 Gb (465 Gb usable)

I should also note that the required specifications for the latest version of Flash Player (11.7.700.202) requires processing speeds of 2.33Ghz. Could that be the issue? I am still to attempt downgrading of my Flash version to see if that could help reduce the RAM usage. Are there any other suggestions out there?