Recommend HD 6xxx or 7xxx Video Card for 3D - AVS Forum
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post #1 of 8 Old 02-22-2013, 08:50 AM - Thread Starter
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Hi all,
Can someone recommend a great video card that plays back 3D content really, really well? I don't game so I don't need the latest greatest card, but it has to play movies seamlessly. Also, the cheaper the better. I don't really want to spend more than about $60. But can stretch it if it's necessary. Is this possible? Thanks for any advice.
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post #2 of 8 Old 02-22-2013, 10:13 AM
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What's the rest of the system specs? There are plenty of CPUs with integrated graphics that are more than capable of seamless 1080p 3D playback.
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post #3 of 8 Old 02-22-2013, 11:12 AM - Thread Starter
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Win7, I7-920 HP build with a "pegasus" motherboard. 9Gb ram. PCI-e 2.0.. I have the stock radeon 4850? card in there right now. Plays BD but not 3D. Also, the card is starting to overheat and I figure I can kill 2 birds with one stone. Let me know if you want/need any more specs. Thanks!
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post #4 of 8 Old 02-22-2013, 03:17 PM
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HD 6450 or HD 6570 is a good choice. (The latter is better for DVD upscaling if you are interested in it.) Recently many video cards have slower DDR3 memory. I recommend 1600MHz effective memory or higher.
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post #5 of 8 Old 02-23-2013, 07:44 AM
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I use a HD 6450 and have no issues playing 3d BR's. I use power dvd 11 tmt5 kept crashing
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post #6 of 8 Old 02-23-2013, 10:24 AM - Thread Starter
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Quote:
Originally Posted by egold54 View Post

I use a HD 6450 and have no issues playing 3d BR's. I use power dvd 11 tmt5 kept crashing

Do you have a link to the actual card you use?

Thanks for all the responses so far...
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post #7 of 8 Old 02-23-2013, 10:42 AM - Thread Starter
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So, based on Renethx's recommendations for 1600mhz clock speed and after a little poking around I have come across two cards that I am considering.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102992

and

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102988

I found some info saying that the 6670 cards get to 64 gb/s of bandwidth which is faster than than the 6450. Does this even matter?

I am eyeing the 2GB card only because I figure, if 1 is good, 2 must be better right? HA

Thanks all.
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post #8 of 8 Old 02-23-2013, 02:26 PM
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Sapphire HD 6670 DDR3-1600 2GB should be a good choice. HIS IceQ H657QO1G (HD 6570 DDR3-1600 1GB) is another choice, but the price difference after rebate is very small.

The only difference between HD 6570 and HD 6670 is the core clock: 650MHz vs 800MHz. Memory varies with the model. HD 6670 often comes with GDDR5 (4000MHz effective frequency) and such a model is pricier. For video playback, DDR3-1600 1GB is enough.

BTW memory bandwidth is calculated this way:

- memory bandwidth = (memory bus width) x (effective frequency)

HD 6570 / 6670 has 480 Radeon cores and 128bit memory bus, so

- With DDR3-1600, memory bandwidth = (128bit) x (1600MHz) = 204800 Mb/s = 25600 MB/s = 25.6 GB/s
- With GDDR5-4000, memory bandwidth = (128bit) x (4000MHz) = 512000 Mb/s = 64000 MB/s = 64.0 GB/s

HD 6450 has 160 Radeon cores and 64bit memory bus. So the memory bandwidth is halved. But for BR 2D/3D playback, you won't see any difference. If you add more video post processors (deinterlacing, denoise, sharpening etc.), there are differences and 6670 > 6570 > 6450 (">" = "is better than").
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