Based on the already used GDDR5 standard, and therefore far cheaper and easier to implement into graphics cards than HBM2, GDDR5X boosts potential memory bandwidth considerably. At the moment GDDR5 is limited to around 7Gb/s, but the first generation of GDDR5X will be 10Gb/s, rising to 14Gb/s over the two years.
It doesn’t take a mathematician to work out that’s potentially double the memory bandwidth of current graphics cards, which could prove a massive boon for driving high-resolution displays more affordably.
“GDDR5X represents a significant leap forward for high end GPU design,” said Mian Quddus, JEDEC Board of Directors Chairman. “Its performance improvements over the prior standard will help enable the next generation of graphics and other high-performance applications.”
The chief advantage of GDDR5X memory over the HBM already popularised by AMD with its Fury range is that of affordability. It makes use of the exact same pseudo open drain (POD) signalling as the GDDR5 used in most of our graphics cards today. That means current GPU manufacturers aren't going to have to drastically alter their production techniques to incorporate the higher-speed memory.
For now at least it looks as if we're going to have a split in graphics card memory standards between the enthusiast tier and the less cards. It's like the full fat Pascal GPU powering the inevitable GeForce GTX 1080 ti (subject to naming) and 2nd Gen AMD Fury will be HBM 2, while the lesser GeForce cards and Radeon 400 series will be sporting GDDR5X.
It doesn’t take a mathematician to work out that’s potentially double the memory bandwidth of current graphics cards, which could prove a massive boon for driving high-resolution displays more affordably.
“GDDR5X represents a significant leap forward for high end GPU design,” said Mian Quddus, JEDEC Board of Directors Chairman. “Its performance improvements over the prior standard will help enable the next generation of graphics and other high-performance applications.”
The chief advantage of GDDR5X memory over the HBM already popularised by AMD with its Fury range is that of affordability. It makes use of the exact same pseudo open drain (POD) signalling as the GDDR5 used in most of our graphics cards today. That means current GPU manufacturers aren't going to have to drastically alter their production techniques to incorporate the higher-speed memory.
For now at least it looks as if we're going to have a split in graphics card memory standards between the enthusiast tier and the less cards. It's like the full fat Pascal GPU powering the inevitable GeForce GTX 1080 ti (subject to naming) and 2nd Gen AMD Fury will be HBM 2, while the lesser GeForce cards and Radeon 400 series will be sporting GDDR5X.
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