I heard somewhere that ATI made a ddr5 graphics card.
Is this true?, lol i only have ddr2....
And where the hell did ddr4 go?
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ddr4 was used on ati HD 38** series i think Nvidia is still on DDR3.
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ATi X1600/X1700/X1950 XTX/HD 3650/3670 -> GDDR4
http://www.reghardware.co.uk/2007/12/03/sams_gddr5/
http://www.overclock3d.net/reviews.php?/gpu_displays/sapphire_hd4870_512mb_ddr5/1 -
hm thats interesting..
what does DDR even mean? -
DDR - Double Data Rate (Double Pumps the data - Double bandwidth than single data rate)
Basically transfers twice the amount of data (compared to single data rate), in the same amount of time. -
[edit] Doh! Andy beat me to it. -
The ATI Radeon 4870 uses GDDR5 memory. The 4850 was to use it as well, but it didn't come to pass.
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**** DDR5 sounds sick
how much faster is it compared to ddr2 or even ddr3s? -
Quite a bit faster.
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I take it none of the cards mentioned above are for laptops? Highest memory type I've read so far for mobile cards is GDDR3.
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I'm hoping we'll see more and more mobile GPU's jump to DDR3 as their standard for this next year, and hopefully a few of the high end offerings in the mobile market will dive into DDR4.
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The 4870 is not a mobile card yet.
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Yeah, so far only desktop cards (my ATI 4870s have it) have DDR5 memory. The best laptops have seen is DDR3.
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Dustin Sklavos Notebook Deity NBR Reviewer
Now GDDR5 on the other hand, that we may see. NVIDIA's more likely to skip GDDR4 entirely and go to GDDR5. -
The 4870 won't be going mobile for a while, I'm pretty sure. It generates too much heat to place into a laptop, but I think we will see it getting in there sometime.
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DDR3 and GDDR3 are pretty different. GPU memory uses the G version, so GDDR, GDDR2, GDDR3, GDDR4, and GDDR5. DDR is for mainstream computer memory.
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mobius1aic Notebook Deity NBR Reviewer
The nice thing about DDR5 compared to DDR3 is it's lower power usage per clock cycle. ATi really knows how to use high quality VRAM, hence why they can shove the memory speed past 2.0 GHz effective quite easily. Just look at the power draws, it's insane how awesome DDR5 is.
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As a note the DDR2 used in video cards is DDR2 not GDDR2 but all above are GDDR3/4/5 it is not the same as DDR3/4 or 5 which I am sure they have made in the lab.
To further clarify on Andy's explanation of Double Data Rate. It is achieved by moving data on both the rising and falling edges of the clock signal. 100Mhz moves data as if 200Mhz and so on.
Ddr5?
Discussion in 'Gaming (Software and Graphics Cards)' started by wontons, Sep 5, 2008.