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SC2: Radeon HD 5670 1 GB GDDR5 versus Radeon HD 6670 1 GB GDDR3

Last response: in Graphics & Displays
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April 10, 2012 11:26:18 AM

I'm a casual gamer who doesn't really need high graphics, but rather a good framerate. Both these cards are available for roughly the same price in my locality. I cannot access any online shopping sites apart from the select few available in India. Currently, I'm playing on an integrated chip which offers me a max of 21 fps, but usually around 11. I'm aiming for an fps around 30, preferably on Medium SC2 settings, but can do with Low settings as well.

My system specs:
Intel Core 2 Quad 2.33 GHz,
Memory: 4 GB,
SMPS: 400 W,
Currently running Windows 7 Ultimate, 64-bit

Games I wish to play (low/medium settings): Starcraft II, Left 4 Dead 2, Team Fortress 2, and possibly Diablo III.

Thanks to anyone who answers :) .
a c 164 U Graphics card
April 10, 2012 2:41:50 PM

They are both very close to performance, but the 6670 is just a tiny bit better and uses less power. If you want a decent gaming card though, you should not go any lower than a 5770 or a 6770, both are only a little bit more money and are quite a bit faster than the two you are looking at. Look here for a sample bench from Crysis http://www.techpowerup.com/reviews/AMD/HD_6670/11.html

Take a look at this article also http://www.tomshardware.com/reviews/gaming-graphics-car...

While the two card you want are listed at the lowest end of the gaming cards, for any demanding games you will be better off going just a step or two higher.
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a b U Graphics card
April 10, 2012 4:20:41 PM

With all due respect Hang the 9, I think he was referring to a 6670 DDR3, not the GDDR5 version you posted. If we are comparing the 6670 DDR3 vs the 5670 GDDR5, the 5670 should win due to higher bandwidth. Tom's actually recommends that route in the article you posted.

That said I do agree that the 5770 is a better option, assuming he has the PCI-E connector to power it.
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a c 164 U Graphics card
April 10, 2012 5:19:36 PM

striker410 said:
With all due respect Hang the 9, I think he was referring to a 6670 DDR3, not the GDDR5 version you posted. If we are comparing the 6670 DDR3 vs the 5670 GDDR5, the 5670 should win due to higher bandwidth. Tom's actually recommends that route in the article you posted.

That said I do agree that the 5770 is a better option, assuming he has the PCI-E connector to power it.


Did not know that they even made 5 versions of the 6670, they all seem to pretty much circle around each other in speed though, within 10-20%. 5670 with gddr5 is a better pick, but for the games listed, should really try to get a 5770/6770 card. They will run off the 400 watt PSU, the specs almost sound like a Workstation class PC, which should have a good power supply.
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a b U Graphics card
April 10, 2012 8:01:15 PM

Yup, I agree. I was just stating if he had to choose, the 5670 would probably provide a tiny bit more horsepower.

The 5770 is a great card, I've installed a few of them for friends with OEM power supplies. Works like a charm as long as they have the amperage.
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a c 363 U Graphics card
April 10, 2012 9:52:46 PM

I believe on average a Radeon HD 6670 with DDR5 RAM is about 15% - 20% faster than the HD 5670. A Radeon HD 6670 with DDR3 RAM would probably be about only 5% - 10% than the HD 5670.

In my option it is not worth spending the money for such a small performance increase. You are better off saving up more money for a more substantial increase in performance. Like buying a Radeon HD 7750 for $110.
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