iMac Mid 2011 21.5" GPU options? 6750 VS 6770?

[xpertxp]

Hi again!

Im seeing that this model has 2 different versions of the graphics cards and are replaceable. What is the difference between the stock AMD Radeon HD 6750M 512 MB and the upgraded AMD Radeon HD 6770M 512 MB. It looks like they both have the same amount of dedicated memory. Is it worth upgrading to that card? Are there other cards I can install beside that one?

Thanks!

 

[jerwin]

https://www.notebookcheck.net/AMD-Radeon-HD-6750M.43958.0.html
https://www.notebookcheck.net/AMD-Radeon-HD-6770M.43955.0.html

They are a bit difficult to compare because typically, a notebook incorporating a 6770m has a more powerful CPU.


http://barefeats.com/imac11c.html

this one shows the 6770 about 20 percent faster at portal 2.