Jedec explains gddr5x memory standard fixed

Jan

25

2016

Standard Organization Jedec the new gddr5x formalized specification for graphics memory. The new standard is derived from GDDR5 and the organization speaks of doubling the amount of available bandwidth.

Full name of the standard jesd232 graphics double data rate SGRAM. The announcement speaks Jedec sure they have a throughput of 10 to 14 Gigabits per second aims persist for the new standard. That would mean a doubling of GDDR5. This is achieved by doubling the eight prefetch “data words” by addressing the memory to sixteen ‘data words. Jedec promises that this is not at the expense of the relative energy efficiency of the memory. Eventually, 16 Gigabit per second are achievable.

The new memory standard is still far away from the current GDDR5. For example, the same pseudo is used open drain signaling. Hence this new standard did not have the name gddr6. A side effect of this is that video card manufacturers do not need drastic changes to their maps by entering before gddr5x can be used. The memory controller must be suitable for the new memory.

Although gddr5x is a step forward, though it knows not match the specifications of high-bandwidth memory, let alone hbm2, that in the meantime production is. Gddr5x however is cheaper to produce and we may see this kind of memory is therefore reflected in low-end and midrange graphics cards and hbm applied in high-end video cards from AMD and Nvidia.

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