Samsung GDDR6 Memory Aangekomen volgend jaar 16 Gbps snelheden - Ontworpen voor NVIDIA Volta Gaming GPU's en Meer, ontvangt CES 2018 Innovation Award

Samsung heeft zojuist aangekondigd dat hun GDDR6 het geheugen van de CES heeft ontvangen 2018 innovatieprijs. Het nieuwe geheugen ontwerp zou in GPU's die zal lanceren volgend jaar met inbegrip van NVIDIA's Volta op basis van de consument kaarten worden opgenomen.

Samsung GDDR6 Memory geëerd met CES 2018 Innovation Award – Aiming For 16 Gbps Transfer Speeds

Samsung has officially stated that they will be producing the fastest and lowest-power DRAM for next generation products. They have currently listed a 16Gb GDDR6 DRAM in their portfolio but that can be expanded upon in the future when production hits full swing. With a transfer rate of 16Gbps, the DRAM will be able to pump out 64 GB/s bandwidth (per chip). The memory operates at just 1.35V.

Samsung 16Gb GDDR6 Memory – The fastest and lowest-power DRAM for next generation, graphics-intensive applications. It processes images and video at 16Gbps with 64GB/s data I/O bandwidth, which is equivalent to transferring approximately 12 full-HD DVDs (5GB equivalent) per second. The new DRAM can operate at 1.35 volt, offering further advantages over today’s graphics memory that uses 1.5V at only 8Gbps. via Samsung

Compared to current generation GDDR5 DRAM, we are looking at both, increased bandwidth and transfer speeds (8Gbps vs 16 Gbps) at lower power consumption (1.5V vs 1.35V). The specifications can easily be compared to current DRAM standards. We know that GDDR5 can reach up to 9 Gbps as NVIDIA launched their GTX 1060 in faster memory variants. That’s the practical limit of where the memory architecture can go. Then we have GDDR5X, a refined implementation of GDDR5 that is better in every aspect.

The GDDR5X memory operates at much faster speeds and has practically hit 16 Gbps as confirmed by Micron themselves. While GDDR5X can hit same speeds as GDDR6, the latter comes with better optimizations and higher densities. We are looking at speeds of 12-14 Gbps becoming standard in the graphics industry while 16 Gbps will ship out in the high performance sector. There’s also up to 32 Gb density support while GDDR5/X max out at 16 GB.

How Will Next Generation GPUs With GDDR6 DRAM Look In Terms of Memory Specifications

So coming to the specifications, GDDR6 will come in 8Gb and 16Gb densities while the standard followed by JEDEC allows for up to 32Gb dies. The 8Gb DRAM dies will allow for up to 8 GB VRAM on a 256-bit wide card and 12 GB VRAM along a 384-bit wide card. The 16Gb dies will essentially double the VRAM since each chip will feature 2 GB VRAM. A 384-bit bus card could feature up to 24 GB while dies with 32Gb density will deliver 48 GB VRAM along the same interface.

Looking at the speeds, we are seeing an incredible jump from 12 Gbps (GDDR5X) to 16 Gbps (GDDR6). Voor de vergelijking, a Volta GPU with a 256-bit wide memory interface using GDDR6 clocked at 16 Gbps transfer speed would result in 512 Bandbreedte GB/s. A 384-bit Volta chip with similar rated memory chips will feature 768 Bandbreedte GB/s.

Not only would the 256-bit solution be faster, cheaper and easier to produce than first generation HBM based solutions, but the 384-bit solution would be able to topple even HBM2 cards such as those based on the Pascal GP100 GPU that has 720 GB/s bandwidth and also the Radeon RX Vega 64 which packs HBM2 memory, leveren van 483 Bandbreedte GB/s. For the folks wondering about efficiency, well the good thing about GDDR6 is that it brings a 10% power saving over current gen GDDR5 memory chips.

GPU Memory Technology Updates:

Graphics Card Name Memory Technology Memory Speed Memory Bus Memory Bandwidth Release
NVIDIA GeForce GTX 1080 GDDR5X 10.0 Gbps 256-bits 320 GB/s 2016
AMD Radeon R9 Fury X HBM1 1.0 Gbps 4096-bits 512 GB/s 2015
AMD Radeon RX Vega 64 HBM2 1.9 Gbps 2048-bits 483 GB/s 2017
NVIDIA Volta GPU With 256-bit bus GDDR6 16.0 Gbps 256-bits 512 GB/s 2018
NVIDIA Titan Xp GDDR5X 11.4 Gbps 384-bits 547 GB/s 2017
NVIDIA Tesla P100 HBM2 1.4 Gbps 4096-bits 720 GB/s 2016
NVIDIA Volta GPU With 384-bit bus GDDR6 16.0 Gbps 384-bits 768 GB/s 2018
NVIDIA Tesla V100 HBM2 1.7 Gbps 4096-bits 901 GB/s 2017

Who Could Be The Potential Customers of GDDR6 Memory?

When talking about potential customers, the most obvious one is NVIDIA. It was already confirmed that NVIDIA Volta consumer GPUs will be utilizing the GDDR6 memory interface as pointed by the production and release plans of consumer Volta graphics cards which falls in 1H of 2018. It’s worth noting that Micron and Samsung have been key partners in providing NVIDIA with their respective DRAM offerings. NVIDIA was and remains to be the first and only customer who utilized their G5X memory standard and will continue their collaboration with Volta and GDDR6. Op dezelfde manier, Samsung’s HBM2 technology has been a key enabler for Volta based Tesla V100 GPUs which started shipping to customers in the previous quarter.

AMD on the other hand may still carry on with HBM2 on their Vega cards while a potential entry or budget tier Vega chip may utilize the cheaper and upgraded memory interface, possibly explaining the delay of Vega 11. SK Hynix, a key partner of AMD in development of HBM DRAM is also going to offer GDDR6 memory and AMD could utilize that.

A third entrant in the GPU industry, Intel, who recently hired AMD’s ex-graphics technology head, Raja Koduri, plans on developing their own discrete GPUs. While they are years away from producing a competitive, high-end discrete graphics, GDDR6 is here to stay for several years and Intel could tap on the new technology to provide consumers a range of competitive GPU based solutions. There’s a ton of announcements expected at CES 2018 and we hope to learn more on GDDR6 during the event, especially at NVIDIA’s CES 2018 keynote.

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