Samsung developed new GDDR6W High Bandwidth Memory standard

[AthlonXP1800]

SAMSUNG develops GDDR6W memory with doubled capacity and performance - VideoCardz.com

A Bridge Between Worlds: How Samsung’s GDDR6W Creates Immersive Metaverse Experiences with Powerful Graphics Memory As advanced graphics and display technologies develop, they are blurring the lines between metaverse and our everyday experience. Much of this important shift is being made...

videocardz.com

Samsung new GDDR6W high bandwidth memory finally has an answer to AMD/Micron failed High Bandwidth Memory standard, their HBM, HBM2, HBM2E and HBM3 memory chips used too many I/O and required interposer, it was really very expensive to manufactured, unfortunately it cannot be mass produced and also their HBM memory cannot overclocked.

We could see GDDR6W in next generation laptops, PCs, AI, HPC, Nvidia Blackwell RTX 5000 series GPUs and PlayStation 6/Xbox/Switch consoles.

GDDR6W with 512 I/O overclocked to 26Gbps will have same 1.6TB/s bandwidth as HBM2E with 4096 I/O.

Next generation GDDR7W should has same bandwidth as HBM3.

 

[Rroff]

Been saying for awhile with node shrinks and so on GDDR can stay relevant a lot longer than those pro-HBM would allow.

 

[Grim5]

Good stuff.

Graphics cards will need this 1.5TB/s memory to make 8k HFR gaming a reality, the current memory used on the rtx4090 and 7900xtx is unable to provide enough bandwidth

 

[0h_no_not_again]

So its a half-step from DDR6 to HBM1/2, with wider busses and stackable devices.

What isn't mentioned in this link is the impact to PCB build quality, minimum clearances, etc. PCB technology is fantastic and all, but these are headed towards High Density Interconnect (HDI) type boards with higher costs. PCB cost must be negligable on current generation cards, but will start to factor if they go to 12 layer HDI with tiny spacings.

At what point do you go to an silicon interposer like HBM and get huge benefits in terms of power efficiency and routing density?

 

[humbug]

nice....

 

[Grim5]

Samsung has also announced GDDR7, which uses pam3 signalling

With a 384bit bus it achieves 1.8TB/s bandwidth, nearly double what the best GDDR6x is capable of

Samsung Reveals GDDR7 Memory Uses PAM3 Signalling to Achieve 36 Gbps Data-Rate

The next-generation GDDR7 memory standard is shaping up nicely, to double bandwidth and density over the current GDDR6. In a company presentation detailing upcoming memory technologies, Samsung revealed that GDDR7 uses PAM3 signalling. While ones and zeroes are stored in DRAM memory cells, it is...

www.techpowerup.com

 

[TNA]

Samsung has also announced GDDR7, which uses pam3 signalling

With a 384bit bus it achieves 1.8GB/s bandwidth, nearly double what the best GDDR6x is capable of

Samsung Reveals GDDR7 Memory Uses PAM3 Signalling to Achieve 36 Gbps Data-Rate

The next-generation GDDR7 memory standard is shaping up nicely, to double bandwidth and density over the current GDDR6. In a company presentation detailing upcoming memory technologies, Samsung revealed that GDDR7 uses PAM3 signalling. While ones and zeroes are stored in DRAM memory cells, it is...

www.techpowerup.com

There you go. Once it is out on the 5090 you can whack your 4090 with a hammer and begin the bliss of 8K gaming you have been after