radeon hd 6870 vs. radeon hd 6770

[kerdall100]

Is there really a big difference between the two?

 

[clutchc]

Yes
http://www.techspot.com/review/467-skyrim-performance/page6.html
http://www.eurogamer.net/videos/battlefield-3-dfpc-radeon-6770-vs-6870-medium-settings-1080p-video
http://www.hwcompare.com/6001/radeon-hd-6770-1gb-vs-radeon-hd-6870/

 

[caj]

the 6870 has a bus size of 256 bit vs 6770 of 128 bit. in performance a wider bus can squeeze faster date & fps. therfore 6870

 

[kerdall100]

Yes
http://www.techspot.com/review/467-skyrim-performance/page6.html
http://www.eurogamer.net/videos/battlefield-3-dfpc-radeon-6770-vs-6870-medium-settings-1080p-video
http://www.hwcompare.com/6001/radeon-hd-6770-1gb-vs-radeon-hd-6870/

On that skyrim benchmark, the lowest resolution was 1680x1050. My max resoltuion will be 1600x900, would that be ok or would i have to lower it? I am fine with lowering it

 

[clutchc]

Yes
http://www.techspot.com/review/467-skyrim-performance/page6.html
http://www.eurogamer.net/videos/battlefield-3-dfpc-radeon-6770-vs-6870-medium-settings-1080p-video
http://www.hwcompare.com/6001/radeon-hd-6770-1gb-vs-radeon-hd-6870/

On that skyrim benchmark, the lowest resolution was 1680x1050. My max resoltuion will be 1600x900, would that be ok or would i have to lower it? I am fine with lowering it

I'm not sure which card you are referring to; HD 6770 or HD 6870. But 1600x900 and 1680x1050 are virtually the same as far as rendering frames to the screen.
1600x900 = 1,440,000 pixels
1680x1050 = 1,764,000 pixels
Your display will actually show a slightly better performance per frame than the 1680x1050.