Project Reality Forums

The 5770 and 6770 are the same card, the 6770 has minor updates that will not affect your gaming experience.

THe 5770/6770 are twice as fast as the 6670.

WHen comparing graphics cards, use this website:
Video Card Comparison - GPUReview.com

You can also use this website:
Mobile Graphics Cards - Benchmark List - Notebookcheck.net Tech
On the top, you have to switch from "Show Only Notebook GPUs" to "Show Only Desktop GPUs", then click the restrict button. You might also want to click the "show only DirectX11 cards" tickbox and click restrict again...

the 6 series cards have 2nd generation DX 11 and if you wanted to future proof yourself then I would go with that or the new 7 series cards

i would suggest 6850 or 7 series counterpart

but if you just want power then the 5 series will do