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Sapphire HD 6870 V HD 7770

Last response: in Graphics & Displays
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July 15, 2012 10:24:28 AM

Hi,
I’ve just received my new pc with an AMD A8-3870 processor complete with a Geforce GT 640 2GB graphics card (£80) and I’m not impressed with the visual quality of the card when watching internet streamed films and videos. I have a Dell pc with a Radeon HD 6450 card (£30) and that’s much better quality.
So, I’m looking at replacing the 640 with either the Sapphire HD 6870, 256 bit 1120 cores, or HD 7770, 128 bit 640 cores, (presumably higher number of bit and cores gives better quality??) both 1GB card but don’t know which card would give me the best viewing quality. Anyone help with which card??
Thanks, Paul

More about : sapphire 6870 7770

a b U Graphics card
July 15, 2012 10:46:18 AM

If you have no intention for gaming then a Radeon HD 7750 or 7770 would do the job fine. If you do a lot of gaming then go for the Radeon HD 6870 or 6950. Also whats the problem with you GeForce 640, i believe there wont be any difference in video quality when you upgrade to a Radeon card. If you upgrade to a Radeon HD 6870 you can do full HD 1080p gaming with ease.
July 15, 2012 10:55:41 AM

The 640 put simply is crap, grainy picture quality, stop start, etc. As said, the 6450 is much better but that pc is now used for other activities so need a replacement pc. Bought the 640 on recommendation but disappointed.
Open to oher suggestions?
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July 15, 2012 12:25:47 PM

A radeon 6770 can crossfire with your cpu,,isn't the processors gpu better than the gt640?
a b U Graphics card
July 15, 2012 12:45:16 PM

Have you tried just the onboard graphics they should be fine for any non gaming application.
July 15, 2012 12:49:17 PM

The best GPU that can crossfire with your APU is the HD 6670.
July 15, 2012 1:27:16 PM

Ok, how do I change my settings from the GT640 to the onboard graphics?
July 15, 2012 1:38:36 PM

through bios I would expect, and connect your monitor to the output on the mobo, u might want to look 4 how 2's on google, a radeon hd 6670 2gb would be a good investment with your apu, $60 well spent
a b U Graphics card
July 15, 2012 1:48:18 PM

Just remove the GT640 from your system you dont really need it.And install the AMD Catalyst drivers while youre at it.
July 15, 2012 2:41:11 PM

Kamen_BG said:
Just remove the GT640 from your system you dont really need it.And install the AMD Catalyst drivers while youre at it.


So I simply take out the gt640 card from the pc and the graphics settings will automatically switch to the onboard 6550D gpu?
Thanks
July 15, 2012 7:49:02 PM

whoever sold you a comp with an a8-3870 and a 640 needs to be slapped. =\

Anyways, i suggest you go with a 6670 and crossfire it with the APU's IGP.

July 15, 2012 7:56:22 PM

Well I've just taken the 640 out and now using the onboard 6550d graphics, slightly better quality but not good enough! Just ordered the 6670 card which should be here by Tuesday. All else fails, pc going back.
Cheers guys
July 15, 2012 7:57:04 PM

Might try overclocking next, that could be fun!!
July 15, 2012 8:05:39 PM

btw, you need to setup the crossfire of the apu+6670 in a certain way, you should look up how to do it on the web or youtube.
!