JEDEC official HBM2 spec will scale to 32GB, with bandwidth of 1TB/sec

The official HBM2 specification will see 32GB of VRAM on GPUs, 1TB/sec bandwidth.

@anthony256

Published Jan 14, 2016 9:33 PM CST
Updated Nov 3, 2020 12:02 PM CST

1 minute & 3 seconds read time

HBM2 is nearly here, with JEDEC releasing the official specification behind the fastest VRAM we've ever had on a video card, and this is incredibly exciting.

JEDEC official HBM2 spec will scale to 32GB, with bandwidth of 1TB/sec | TweakTown.com

The official specification on HBM2 sees cards ramping up to 32GB, with up to 1TB/sec of memory bandwidth. This is a huge leap in the available VRAM over HBM1, which was limited to only 4GB on the Fiji-powered cards from AMD, including the super-small R9 Nano, Radeon R9 Fury and the R9 Fury X.

The power consumption of HBM2 will be lower than HBM1, with 8% saved over HBM1, on top of the 48% saved over GDDR5. The most important part of HBM is the amount of DRAM stacked, with HBM2 driving it up to 4/8 Hi Stacks (4/8GB) over the 4 Hi Stack of HBM1 (1GB total).

HBM2 will be found on AMD's next-gen Polaris architecture, as well as NVIDIA's upcoming Pascal architecture, which we should see NVIDIA showing off at their GPU Technology Conference in early April.

NEWS SOURCE:wccftech.com

Anthony Garreffa

Anthony joined the TweakTown team in 2010 and has since reviewed 100s of graphics cards. Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering and has recently taken a keen interest in artificial intelligence (AI) hardware.