AMD Radeon HD 7900 to Utilize New XDR2 Rambus Memory

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Hey i'm a young person here, and i've never heard of this rambus vs ddr stuff. Can anyone enlighten me on the history? was one dramatically superior than the other?
 
Come early next year I'll be excited to see the battle royale between big red and mean green. Both look like a promising jump in performance over last generation(especially on NVIDIA's end).
 
[citation][nom]soldier37[/nom]Damn I was about to go with a GTX 580 3 Gb card for my 2560 x 1600 res I game on now I may wait till the 7970 hits with a bulldozer 8150 would be killer...Decisions...My 5870 is becoming dated finally...[/citation]

5870 is dated ? wow my 5770 is a hurting unit 7870 for me please. Exciting times
 
[citation][nom]ibobarreiro[/nom]I'll love higher resolution like 4K in the card, is there any monitor to support that resolution?[/citation]
yes there is a Ultra High Definition 150" panasonic tv 4k x 2k resolution.
 
[citation][nom]Chainzsaw[/nom]7850 looks like the best deal.[/citation]
I was just thinking that will probably end up being the best bang for your buck for an affordable rig. Plus a little overclocking...
 
I hope these numbers are true.
I may not be a fan of Rambus, but whoever can provide the best product at my set price point wins.
I don't know what my future price point may be, and if they have to set a $1,000 price point just to profit from the card, I'm out. If it costs $100 more or so, I'll consider it.
 
Did anyone that read all of the comments up to this comment notice that every single post that slanders Rambus and their shady lawsuit ways got thumbs downed. It's like Rambus was bitter after their memory was tested by Toms and found to be way overpriced, besides crippling all other memory companies with royalties even to this day. Read the wiki article. The lawsuit section is longer than all other content combined on their page.
 
Rambus doesn't make memory. They only design it and license the design to memory makers like Samsung, Elpida, Toshiba etc. The memory makers then pay 1.5 to 3% royalty per piece to Rambus. GDDR5, DDR3 DDR2, ETC all have Rambus Intellectual Property inside that was allegedly stolen by the JEDEC members. That is why all the lawsuits happened (and are still happening).
 
"This compared to the 176 GB/s in Radeon HD 6790 with GDDR5 memory at 5500 MHz. All this power will be packed within an estimated power consumption of 190 watts "

Hey Tom..Aren't you referring to 6970???? Please proof read b4 u post!!!
 
I'm willing to spend $1000 usd again to get a pair of those top high end cards from AMD. if those are a lot more expensive I will think twice then.
 
[citation][nom]jabliese[/nom]And what is up with that "Datarate per pin" graph? That is certainly a common metric.[/citation]
Well, it's an attempt to make some things clear and hold others constant, I'd guess. I suppose the best way to describe it would be "actual effective transfer rate through the data pins," since different technologies would vary internal clock rates, and used different bus widths.

[citation][nom]meat81[/nom]it out performed DDR in DDR's beginning.[/citation]
But DDR wound up scaling a LOT better than RDR.
 
Also the 7970 with 190 watts?.. that is just one 6 pin connector needed!!! and they could easily slap 2 7950 into a pcb and still be within 300 watt margin o.o
 
And seems toms ate my first comment, if the 7670 replaces the 6750 / 5770, it does under 75watts , you dont need any extra power at all!
 
[citation][nom]caskachan[/nom]Also the 7970 with 190 watts?.. that is just one 6 pin connector needed!!! and they could easily slap 2 7950 into a pcb and still be within 300 watt margin o.o[/citation]
And they'll still have a 60dB fan. 😛 (joke.)
 
The most interesting change is AMD's decision to go with XDR2 memory interface from Rambus over previous generation DDR5 memory interface. Rambus claims the XDR2 is twice as fast as DDR5, while offering 30 percent less power consumption.

Should had places "G" in the beginning of DDR5 since it is misleading, DDR4 is not even relased to the consumers.
 
rambus created ddr, ddr2, ddr3 and ddr4...it is their technology and patents...
 
[citation][nom]cats_paw[/nom]I love the 1000 Mhz, the 8000Mhz memory, the pci 3.0, but how will that translate in $? .[/citation]
It's not 8000 MHz... For example the HD 5670/6670 which uses GDDR5 at 4000 MHz, it's actually 5 x 800 MHz.

Or just like 1333 MHz DDR3 modules are actually clocked at 666 MHz (DDR3: Double Data Rate 3).

I think the way they put it is actually pretty stupid (marketing?). It's like saying a dual core processor clocked at 3.2 GHz is 6.4 GHz just because it's dual core.
 
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