Thursday, July 27th 2023
Micron Updates Roadmap, Promises 32 Gbit DDR5 and GDDR7 for 2024
During yesterday's HBM3 Gen2 memory products yesterday, Micron also shared an updated roadmap with select media and partners. The most interesting details on that roadmap were updates to DRAM and GDDR memory products, with increases in capacity coming for both types of memory. Micron is aiming to launch 32 Gbit or 4 GB DDR5 memory ICs somewhere in the beginning of 2024, which means we can look forward to 32 GB single sided DIMMs with a single DRAM die per memory IC. This should, in theory at least, enable cheaper 32 GB DIMMs, but as always, it's unlikely that the cost saving will be passed on to the end customer. As far as server customers goes, Micron is planning 128 GB DIMMs for 2024, followed by 192 GB DIMMs in 2025 and 256 GB DIMMs in 2026.
When it comes to GDDR, Micron will be launching JEDEC standard GDDR7 memory with 16 and 24 Gbit dies, or 2 and 3 GB capacity, the latter could be the highest capacity GDDR7 memory IC on the market and could see some interesting graphics card configurations. Micron is promising speeds of up to 32 Gbps per pin or 128 GB/s per chip, which is a big jump up from its current best GDDR6X memory which tops out at 24 Gbps per pin or 96 GB/s per chip. GDDR7 differs from Micron's proprietary GDDR6X by using PAM-3 rather than PAM-4 signalling, although this is simply something that the likes of AMD and NVIDIA would have to design their GPUs around. Micron doesn't appear to have any plans for GDDR7X at this point in time. The company is also working on several new iterations of HBM memory over the coming years, with the company expecting to hit 2 TB/s sometime in 2026 or later.
Source:
Anandtech
When it comes to GDDR, Micron will be launching JEDEC standard GDDR7 memory with 16 and 24 Gbit dies, or 2 and 3 GB capacity, the latter could be the highest capacity GDDR7 memory IC on the market and could see some interesting graphics card configurations. Micron is promising speeds of up to 32 Gbps per pin or 128 GB/s per chip, which is a big jump up from its current best GDDR6X memory which tops out at 24 Gbps per pin or 96 GB/s per chip. GDDR7 differs from Micron's proprietary GDDR6X by using PAM-3 rather than PAM-4 signalling, although this is simply something that the likes of AMD and NVIDIA would have to design their GPUs around. Micron doesn't appear to have any plans for GDDR7X at this point in time. The company is also working on several new iterations of HBM memory over the coming years, with the company expecting to hit 2 TB/s sometime in 2026 or later.
14 Comments on Micron Updates Roadmap, Promises 32 Gbit DDR5 and GDDR7 for 2024
Here is a 7900XTX breakdown showing how many GDDR6 chips are on the PCB:
Also, does anyone know enough about memory ICs to explain why 16Gb GDDR7 has a maximum capacity of 2GB?
72GB would be possible with clamshell design and 12+12 chips but aside from 3090 no gaming GPU has used it in the high end lately. 3090 Ti moved to 2GB chips on one side. So i think 72GB will be used on workstation models only.
Assuming Nvidia finally decides to stop sabotaging their cards we could see something like this in 2025:
3050 8GB
5060/Ti 12GB
5070/Ti 16GB
5080/Ti 20/24GB
5090 36GB
See for yourself at Wiredzone (US) or a Supermicro reseller in EU.
Hopefully, they won't send those guys with the really black suits & mini phat guns over to your house at 2:37:31:54.2916 am :D /s
And just out of curiosity, why would a reseller (supermicro) need to "certify" anything, ram or otherwise, for performance or reliability ?
I would think that would be the mfgr's responsibility, yes ?
@TheLostSwede , are you sure the numbers are correct?
32 Gbps = 4 GB/s
24 Gbps = 3 GB/s
128 bit - 8 or 12GB
192 bit - 12 or 18GB
5060 12GB 128 bit 512GB/s a glorified 4070
5070 18GB 192 bit 768 GB/s roughly a 4080.
5080 24GB 256 bit 1024GB/s but it should be faster than 4090, certainly 50% faster than a 4080. so that may be the 5070 Ti
going for 400 600 800 and $1200