AMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power

AMD reveals its new MCM-based Instinct MI200: packs 'Aldebaran' MCM GPU, 128GB HBM2e memory, and destroys NVIDIA's offerings.

@anthony256
Published Mon, Nov 8 2021 4:49 PM CST

AMD has finally announced its next-generation MI200 HPC GPU codenamed Aldebaran, based on the new CDNA 2 architecture on the 6nm process node.

The first MCM technology is now here in the form of the codename Aldebaran GPU, offering up 2 x GPU chiplets and an enormous 128GB of ultra-fast HBM2e memory. There's an incredible amount of GPU horsepower, memory bandwidth, and so much more going on inside of the AMD Instinct MI200.

Inside, the new Aldebaran GPU has two dies: one secondary, and one primary. Each of the GPU dies has 8 Shader Engines each, for a total of 16 Shader Engines while each of the Shader Engines has 16 Compute Units with full-rate FP64, packed FP32, and 2nd Generation Matrix Engine for FP16 and BF16 operations.

AMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 11 | TweakTown.com
VIEW GALLERY - 10 IMAGES

Each of the GPU dies has 128 compute units or 8192 stream processors -- this means the Aldebaran GPU has a monster amount of compute cores: 220 compute cores, and an even more monstrous 14,080 stream processors. The Aldebaran GPU is also powered by a brand new XGMI interconnect, with each of the GPU chiplets featuring a VCN 2.6 engine and main I/O controller.

AMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 02 | TweakTown.com

AMD is using an 8-channel memory interface with 1024-bit interfaces, for a total of a huge 8192-bit memory bus. AMD is using 2GB HBM2e DRAM modules, with each interface supporting 2GB each -- for a total of 16GB of ultra-fast HBM2e memory per stack.

There are 8 stacks in total so 8 x 16GB = 128GB of ultra-fast HBM2e memory on the Aldebaran-based AMD Instinct MI200. NVIDIA doesn't come close to this, with their A100 featuring a total of 80GB of HBM2e memory -- while the Aldebaran-based AMD Instinct MI200 has a huge 3.2TB/sec of memory bandwidth... NVIDIA can't compete with that, as the A100 only has 2TB/sec of memory bandwidth.

AMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 03 | TweakTown.com
  • AMD CDNA 2 architecture - 2nd Gen Matrix Cores accelerating FP64 and FP32 matrix operations, delivering up to 4X the peak theoretical FP64 performance vs. AMD previous-gen GPUs.
  • Leadership Packaging Technology - Industry-first multi-die GPU design with 2.5D Elevated Fanout Bridge (EFB) technology delivers 1.8X more cores and 2.7X higher memory bandwidth vs. AMD previous-gen GPUs, offering the industry's best aggregate peak theoretical memory bandwidth at 3.2 terabytes per second.
  • 3rd Gen AMD Infinity Fabric technology - Up to 8 Infinity Fabric links connect the AMD Instinct MI200 with 3rd Gen EPYC CPUs and other GPUs in the node to enable unified CPU/GPU memory coherency and maximize system throughput, allowing for an easier on-ramp for CPU codes to tap the power of accelerators.
AMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 04 | TweakTown.comAMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 05 | TweakTown.com
AMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 06 | TweakTown.comAMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 07 | TweakTown.com

Performance-wise, NVIDIA shouldn't be taking this lightly -- AMD has multiple record wins with the Instinct MI200 in the HPC market over NVIDIA's flagship A100. There's up to 3x+ performance gains on the MI200 over the A100, which is mighty, mighty impressive.

AMD will be offering its Aldebaran GPU in 3 different configurations:

  • OAM: only MI250, MI250X,and dual-slot PCIe MI200
  • MI250X: 14,080 cores and 383 TFLOPs of FP16 compute performance
  • MI250: 13,312 cores and 362 TFLOPs of FP16 compute performance
  • 128GB of HBM2e memory on both GPUs.
AMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 08 | TweakTown.comAMD Instinct MI250X: Aldebaran MCM GPU, 128GB HBM2e memory, 500W power 09 | TweakTown.com

Forrest Norrod, senior vice president and general manager, Data Center and Embedded Solutions Business Group, AMD explains: "AMD Instinct MI200 accelerators deliver leadership HPC and AI performance, helping scientists make generational leaps in research that can dramatically shorten the time between initial hypothesis and discovery".

"With key innovations in architecture, packaging and system design, the AMD Instinct MI200 series accelerators are the most advanced data center GPUs ever, providing exceptional performance for supercomputers and data centers to solve the world's most complex problems".

Buy at Amazon

PowerColor Red Devil AMD Radeon RX 6900 XT Ultimate Gaming

TodayYesterday7 days ago30 days ago
$2139.99$2139.99-
* Prices last scanned on 11/29/2021 at 3:14 pm CST - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

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.

Newsletter Subscription

Related Tags

Newsletter Subscription
Latest News
View More News
Latest Reviews
View More Reviews
Latest Articles
View More Articles