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6670 gddr5 vs 6750 gddr3

Last response: in Graphics & Displays
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December 30, 2011 7:35:07 PM

thanks for the reply, but i'm aware that at with the same memory that the 6750 is better, but s it still better with the slower memory as it was tested with the gddr5?
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a c 92 U Graphics card
December 30, 2011 7:42:09 PM

what resolution do you game at?

the 6750 would be better either way but faster memory is more useful at higher resolutions.
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December 30, 2011 7:43:28 PM

mhokett said:
thanks for the reply, but i'm aware that at with the same memory that the 6750 is better, but s it still better with the slower memory as it was tested with the gddr5?

I have the HD6750 with GDDR5 My other specs are:
AMD Athlon x2 64 6000+ @ 3.10Ghz
4GB Kingston DDR2 RAM
1TB Hitachi 7200RPM 32MB HDD

I have been getting between 25-60 FPS (averages around 40) on Battlefield 3 running with medium settings 1440x900. Pretty decent for a 90 euro card! I can run it on mostly High/Ultra with 1280x720 resolution. If you want to run games at a very high resolution, or with very high textures, expect a 20-30 % speed loss when compared to the GDDR5 version. However, if you are running games with a resolution smaller than mine, you won't have any troubles, the 128bit bus kind of kills the speed of the GDDR5 memory when it comes to high resolutions and big textures.
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a c 160 U Graphics card
a b C Monitor
December 30, 2011 7:47:13 PM

They should perform on average very similarly but in pure speed the HD6750 is better.

What games are you playing? HD res as larkspur said is better done with better RAM bandwidth but both of these card would struggle to fill GDDR5 bandwidth anyway.
Unfortunately neither is really sufficient for most games at HD (1080p) resolution.

My vote so far would still be HD6750 if they are at the same price. If the HD6670 is cheaper considerably, take it rather.

What are the rest of your specs?
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December 30, 2011 8:02:57 PM

thank for the advise

I'm building
athlon II X3 455 rana
asrock m3a770de
kingston hyper x Blu 4Gb 2x2GB ddr3 1600

If i have to reduced rez i will, but this is my current budget so...

wanting to play eve online and SC2, anyhting else is just gravy
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a c 160 U Graphics card
a b C Monitor
December 30, 2011 8:07:13 PM

Power supply wattage and available power connectors? Or just a model number so we can check manufacturer site.
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a b U Graphics card
a b C Monitor
December 30, 2011 8:07:47 PM

Again, when comparing just those two cards definitely go with the 6750 it will be better in every 1080p or lower scenario. And especially at higher resolutions a 6750 with gddr5 will be better than a 6750 with gddr3. But those cards are the same price and given only those options I'd get the 6750.
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a b U Graphics card
a b C Monitor
December 30, 2011 8:17:55 PM

So think of the 6750 with gddr3 as being one rung down on the list I linked from the one they list which I believe is the 6750 gddr5. Either way it'll be better than the 6670 for the same price.

But as Novuake suggested, tell us your PSU maybe someone can track down a slightly more powerful card for similar money.

And I wouldn't give in to turning down your resolution. Spend extra if you have to but game at your monitor's native resolution, it really looks best.
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a c 160 U Graphics card
a b C Monitor
December 30, 2011 8:26:55 PM

Ok well get the HD6750 in my opinion.

Try get the GDDR5 version though, you should be able to get it at a similar price. Try different manufacturers. Sapphire is nice for example.
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a b U Graphics card
December 30, 2011 8:36:02 PM

UnlimitedBanana said:
I have the HD6750 with GDDR5 My other specs are:
AMD Athlon x2 64 6000+ @ 3.10Ghz
4GB Kingston DDR2 RAM
1TB Hitachi 7200RPM 32MB HDD

I have been getting between 25-60 FPS (averages around 40) on Battlefield 3 running with medium settings 1440x900. Pretty decent for a 90 euro card! I can run it on mostly High/Ultra with 1280x720 resolution. If you want to run games at a very high resolution, or with very high textures, expect a 20-30 % speed loss when compared to the GDDR5 version. However, if you are running games with a resolution smaller than mine, you won't have any troubles, the 128bit bus kind of kills the speed of the GDDR5 memory when it comes to high resolutions and big textures.

The GDDR5 mitigates the slower 128bit Bus.
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a b U Graphics card
December 30, 2011 8:39:29 PM

mhokett said:
I'm trying to decide between the these two video cards thy are both the same price. one is a 6670 w/ gdr5 and the other is a 6750 w/ gddr3.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Which would give better performance on a 1080p monitor?

I ran the Sapphire Radeon HD 5750 1GB GDDR5 for a time and it was a good little entry level card however remember you are looking @ 30fps gameplay @ 1080p but it never goes below 30fps in pretty well any game even the very demanding ones. PS 6750 is the same as 5750.
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January 9, 2012 11:25:13 PM

Best answer selected by mhokett.
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