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Samsung claims to have broken speed records with its new graphics memory

Samsung Electronics announced over the weekend that it has increased the data transfer speed on its extremely fast GDDR4 (Graphics Double Data Rate, version 4) graphics memory. The South Korean electronics giant claims that it has increased speeds by two-thirds.

Using 80-nanometer production technology, the 4Gb/s (2.0GHz) is 66 percent faster than today’s fastest commercially available memory – the 2.4Gb/s GDDR4. The new 4Gb/s graphics memory, offered in 512Mb density, has a 32-bit data bus configuration. GDDR4 uses JEDEC-approved standards for signal noise reduction to help attain the highest possible speed.

“Our new GDDR4 memory will add even more zip in video applications, making gaming, computer-aided design and video editing faster than ever before,” said Mueez Deen, marketing director, graphics memory, Samsung Semiconductor, Inc. “This will enable ultra-smooth movements in animation and make games incredibly realistic, resulting in a truly immersive user experience,” he added.

Samsung cites analyst expectations for GDDR4 to significantly boost demand for high-performance graphics memory over the next 12-18 months. The company said that it will begin customer sampling of its new chips this month.

Most video cards on the market today from NVIDIA and ATI are still using GDDR3, including solutions inside the Xbox 360 and PlayStation 3. GDDR4 memory thus far has seen limited use in recent high-end cards from ATI, and is expected to be paired with the upcoming R600 GPU.

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RE: R600?
By InsaneScientist on 2/26/2007 11:00:44 PM , Rating: 2
How much memory there is on a card is completely dependent on how many chips the manufacturer puts on.

Please note, it's not saying that they're 512 MB (in which case I would see why you think it's the whole card), they're saying it's 512 Mb.

When referring to GDDR memory densities, they're usually referred to with Megabit capacities rather than Megabyte.

I would assumme the main reason is marketing: it makes them look bigger. At a cursory glance, which would you think is bigger: 64MB or 512Mb?

Another point: GFX cards these days have a tendancy to have 8 GDDR chips on them (32bits per chip * 8 chips = 256 bit bus) so it makes it real easy to tell how much memory a card using those particular chips will have. I.E. since these are 512Mb chips, a card equipped with 8 of them will have 512MB of memory.

If R600 is equipped with these things, it will have 1GB of memory. (512bit bus / 32 bits per chip = 16 chips * 512Mb/64MB = 1GB memory)
Of course... I think we already knew that R600 would have 1GB VRAM... but I'm using this to illustrate the point.

I hope that all made sense. Basically, what it boild down to is that they're referring to the size of the chip itself and not how much memory goes on one side of a board (after all... how much memory goes on 1 side of a board changes. The 8800 GTX has 12 memory chips, wheras many of the lower model graphics cards have 4 chips, or even two)

"Game reviewers fought each other to write the most glowing coverage possible for the powerhouse Sony, MS systems. Reviewers flipped coins to see who would review the Nintendo Wii. The losers got stuck with the job." -- Andy Marken
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