AMD Radeon Instinct MI50 32GB

Ai GPU Server

AMD Radeon Instinct MI50 32GB

Exhibit Type: Enterprise AI / HPC Compute Accelerator & Architectural Dossier
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Microarchitecture: Vega 20 GL / GCN 5.1 / GFX9 gfx906 (7 nm TSMC FinFET)
•
VRAM & Interconnect: 32 GB HBM2 (4096-bit Bus, 1.02 TB/s Bandwidth, PCIe 4.0 x16)
•
Museum Inventory: 1 Physical Unit (Custom Active Turbine Blower Cooler, Installed in Supermicro X8DAH Workstation)
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Source Authority: TechPowerUp, AMD Official Documentation & PassMark

1. Technical Overview & Key Specifications

Category Property Specification
GPU Identity Model Name AMD Radeon Instinct MI50 32GB (Radeon Instinct MI50 Server Accelerator)
Manufacturer / Vendor Advanced Micro Devices, Inc. (AMD)
GPU Code Name / Variant Vega 20 GL (Codename Moonshot • Former Codename Aruba • GFX9 gfx906)
Architecture Generation Graphics Core Next 5th Generation (GCN 5.1 / Vega II) • Radeon Instinct (MIx) Series
Market Segment & Launch Datacenter Server, HPC & Machine Learning • November 18, 2018
Product Part Number & Package Radeon Instinct MI50 32GB • BGA-1933 Multi-Chip Module on 2.5D Silicon Interposer
Physical Silicon & Foundry Foundry & Process Node TSMC (Taiwan Semiconductor Manufacturing Co.) • 7 nm FinFET (N7) (World’s first 7nm GPU)
Transistor Count 13,230 Million (13.23 Billion) transistors
Die Surface Area 331 mm² (Monolithic GPU ASIC adjacent to 4 HBM2 memory stacks)
Transistor Density 40.0 Million transistors / mm²
Packaging Architecture 2.5D Silicon Passive Interposer carrying Vega 20 ASIC and 4 × 3D HBM2 stacks
Compute Pipeline & Clocks Stream Processors / ALUs 3,840 Shading Units (Unified 1D vector stream processors)
Compute Units (CUs) 60 Compute Units (4 CUs harvested/disabled from 64 physical CUs; 15 CUs per Shader Engine)
Texture Mapping Units (TMUs) 240 TMUs (4 filtering & addressing units per CU)
Render Output Units (ROPs) 64 ROPs (16 ROPs per Shader Engine across 4 render backends)
Base & Boost Engine Clocks 1,200 MHz Base Clock • 1,746 MHz Peak Boost Clock
Theoretical Floating Point (FP16 / FP32 / FP64) FP16: 26.82 TFLOPS (2:1 Packed Math) • FP32: 13.41 TFLOPS • FP64: 6.705 TFLOPS (Full 1:2 rate)
Matrix / INT Inference Throughput INT8: 53.64 TOPS (4:1 Packed Math) • INT4: 107.28 TOPS (8:1 Packed Math)
Fillrates (Pixel / Texture) 111.74 GPixels/sec • 419.04 GTexels/sec
Memory Subsystem VRAM Capacity & Type 32 GB HBM2 (34,342,961,152 Bytes Stacked High Bandwidth Memory)
Memory Bus Width 4,096-bit (4 × 1024-bit physical channels interfacing over silicon interposer)
Memory Clock & Data Rate 1,000 MHz (2,000 MT/s / 2.0 Gbps effective pin data rate)
Peak Memory Bandwidth 1,024 GB/s (1.024 TB/s) sustained memory throughput
DRAM Stacks Configuration 4 × 8-High 3D stacked DRAM die packages with TSVs (Through-Silicon Vias)
Error Correction Code (ECC) Full Hardware End-to-End ECC on HBM2 arrays and internal cache hierarchies without capacity penalty
Thermal & Electrical Thermal Design Power (TDP / Board Power) 300 W Maximum Board Power
Museum Retrofit Cooling Solution Added High-Performance Active Turbine Cooler: Replaced server passive tunnel heatsink with active turbine blower fan for workstation chassis thermal stability
Auxiliary Power Connectors 2 × 8-pin PCIe (or 1 × 6-pin + 1 × 8-pin PCIe auxiliary power feeds)
Form Factor & Board Dimensions Full-Height, Full-Length (FHFL), Dual-Slot PCIe AIC • Length: 267 mm (10.5 in) • Height: 111 mm (4.4 in)
Host Interface & Display I/O Host Bus Interface PCI Express 4.0 x16 (16.0 GT/s • 31.5 GB/s unidirectional / 63.0 GB/s bidirectional bandwidth)
Interconnect Topology Dual AMD Infinity Fabric links (Up to 200 GB/s GPU-to-GPU coherent fabric bandwidth)
Physical Display Connectors 1 × mini-DisplayPort 1.4a (Supports 4K/5K/8K resolution output with compatible VBIOS)
Headless Server Compute Mode Native headless accelerator operation via DRM amdgpu render node (/dev/dri/renderD128)
Software & AI Ecosystem ROCm Framework & Shader ISA AMD ROCm (Radeon Open Compute) • Architecture Target gfx906 (PyTorch, TensorFlow, vLLM, llama.cpp, Whisper)
DirectX & Vulkan Microsoft DirectX 12.1 (Feature Level 12_1 • Shader Model 6.7) • Vulkan 1.3
OpenGL & OpenCL OpenGL 4.6 • OpenCL 2.1 (Full GPGPU compute language acceleration)
Driver Support Linux amdgpu in-tree kernel driver • AMD ROCm Software Stack • Windows 10/11 Hybrid PRO Drivers
PassMark Benchmarks PassMark G3D Mark 13,571 (Architectural Vega 20 G3D index derived from 3,840-core compute scaling / 90.9% of Instinct MI60 reference 14,923; matches 13,679 on sibling Radeon Pro VII)
PassMark G2D Mark 820 (2D Vector UI and system GDI acceleration)
Category Rank & Position Rank #188 across all desktop video cards in PassMark database (Top 5% of all tested GPUs)

2. Silicon Topology & Vega 20 GCN 5.1 Microarchitecture

Silicon Scale

13.23B

Transistors • 331 mm² die (7 nm TSMC FinFET)

Compute Pipeline

3,840 Cores

60 CUs across 4 Shader Engines @ 1,746 MHz

Raster & Texture

240 TMU / 64 ROP

419.04 GTexel/s • 111.74 GPixel/s

Memory Throughput

1.02 TB/s

4,096-bit HBM2 bus • 32 GB stacked VRAM

Internal Silicon Die Topology & Compute Pipeline Map

+-----------------------------------------------------------------------------------------------------------------------+
|                       AMD VEGA 20 GL SILICON DIE TOPOLOGY (7nm TSMC FinFET • 13.23 BILLION TRANSISTORS)                |
|                                                                                                                       |
|  +---------------------------------------------------------------+ +-----------------------------------------------+  |
|  |             HOST INTERFACE: PCI EXPRESS 4.0 x16               | |          DUAL INFINITY FABRIC LINKS           |  |
|  |           (16.0 GT/s • 63.0 GB/s Bidirectional)               | |       (Direct GPU-to-GPU Coherent 200 GB/s)   |  |
|  +---------------------------------------------------------------+ +-----------------------------------------------+  |
|                                                  |                                                                    |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|  |                          COMMAND PROCESSOR & HARDWARE ASYNCHRONOUS COMPUTE ENGINES (ACEs)                       |  |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|                                                  |                                                                    |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|  |                                         FOUR SHADER ENGINES (SE 0 to SE 3)                                      |  |
|  |                                                                                                                 |  |
|  |  +------------------------------+ +------------------------------+ +------------------------------+ ...         |  |
|  |  |       SHADER ENGINE 0        | |       SHADER ENGINE 1        | |       SHADER ENGINE 2        |             |  |
|  |  |  - Geometry Processor        | |  - Geometry Processor        | |  - Geometry Processor        |             |  |
|  |  |  - 16 Render Backends (ROPs) | |  - 16 Render Backends (ROPs) | |  - 16 Render Backends (ROPs) |             |  |
|  |  |  +------------------------+  | |  +------------------------+  | |  +------------------------+  |             |  |
|  |  |  | 15 Active Compute Units|  | |  | 15 Active Compute Units|  | |  | 15 Active Compute Units|  |             |  |
|  |  |  | (960 Stream Processors)|  | |  | (960 Stream Processors)|  | |  | (960 Stream Processors)|  |             |  |
|  |  |  | 60 TMUs • 16KB L1$/CU |  | |  | 60 TMUs • 16KB L1$/CU |  | |  | 60 TMUs • 16KB L1$/CU |  |             |  |
|  |  |  +------------------------+  | |  +------------------------+  | |  +------------------------+  |             |  |
|  |  +------------------------------+ +------------------------------+ +------------------------------+             |  |
|  |  [ Total: 4 Shader Engines • 60 Compute Units • 3,840 Stream Processors • 240 TMUs • 64 Render Output Units ]     |  |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|                                                  |                                                                    |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|  |                                4 MB SHARED L2 CACHE & HIGH-SPEED MEMORY CROSSBAR                                |  |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|          |                                |                                |                               |          |
|  +---------------+                +---------------+                +---------------+               +---------------+  |
|  | 1024-bit HBM2 |                | 1024-bit HBM2 |                | 1024-bit HBM2 |               | 1024-bit HBM2 |  |
|  | Controller 0  |                | Controller 1  |                | Controller 2  |               | Controller 3  |  |
|  +---------------+                +---------------+                +---------------+               +---------------+  |
|          |                                |                                |                               |          |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|  |                        2.5D SILICON PASSIVE INTERPOSER INTERCONNECT SUBSTRATE (TSVs)                            |  |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|          |                                |                                |                               |          |
|  +---------------+                +---------------+                +---------------+               +---------------+  |
|  | 8 GB Stack 0  |                | 8 GB Stack 1  |                | 8 GB Stack 2  |               | 8 GB Stack 3  |  |
|  | 8-High HBM2   |                | 8-High HBM2   |                | 8-High HBM2   |               | 8-High HBM2   |  |
|  +---------------+                +---------------+                +---------------+               +---------------+  |
|  |               TOTAL VRAM CAPACITY: 32 GB HBM2 (4096-BIT BUS • 1,024 GB/s SUSTAINED BANDWIDTH)                  |  |
|  +-----------------------------------------------------------------------------------------------------------------+  |
|                                                  |                                                                    |
|  +-----------------------------------------------+ +---------------------------------------------------------------+  |
|  |          MULTIMEDIA HARDWARE ENGINES          | |                   DISPLAY CONTROLLER ENGINE                   |  |
|  |  - Unified Video Decoder (UVD 7.2)            | |  - Display Core Engine (DCE 12.1)                             |  |
|  |    Hardware Decode: 4K/8K HEVC, H.264, VP9    | |  - 1x Physical mini-DisplayPort 1.4a Connector                |  |
|  |  - Video Compression Engine (VCE 4.1)         | |  - Up to 4K @ 60Hz / 8K with Graphics VBIOS                   |  |
|  |    Hardware Encode: HEVC & H.264 up to 4K60   | |  - Native Headless DRM Render Node (/dev/dri/renderD128)      |  |
|  +-----------------------------------------------+ +---------------------------------------------------------------+  |
+-----------------------------------------------------------------------------------------------------------------------+

3. Memory Subsystem & High-Speed Interconnects

4,096-Bit HBM2 Stacked Architecture

  • Stacked 3D Silicon Topology: Composed of 4 individual 8-high 3D DRAM die stacks co-packaged alongside the 7nm Vega 20 silicon die atop a 2.5D passive silicon interposer.
  • Massive 1.02 TB/s Throughput: At a 1,000 MHz base clock (2.0 Gbps effective pin data rate), the 4,096-bit interface delivers an astounding 1,024 GB/s of continuous memory bandwidth.
  • 32 GB Large Framebuffer: The 32 GB configuration provides double the capacity of standard 16GB models, enabling in-memory residence of quantized 70B parameter LLM weights and massive scientific matrices.
  • Enterprise End-to-End ECC: Hardware ECC monitors and protects every DRAM array and on-die SRAM cache line, mitigating cosmic-ray bit flips in mission-critical 24/7 compute jobs without capacity loss.

PCIe 4.0 x16 & Infinity Fabric

  • PCIe 4.0 x16 Interface: First generation of enterprise accelerators to support PCIe Gen4, achieving 16.0 GT/s signaling and 63.0 GB/s bidirectional throughput to the host CPU root complex.
  • Dual Infinity Fabric Interconnects: On-board coherent Infinity Fabric links enable up to 200 GB/s direct peer-to-peer GPU ring communication, bypassing PCIe bottlenecking in multi-accelerator pods.
  • Workstation Slot Compatibility: Seamlessly operates in PCIe 3.0 x16 workstation slots (such as Slot 1 on the Supermicro X8DAH motherboard), delivering maximum Gen3 line rate with rock-solid link stability.
  • 300 W Board Power Headroom: Fed by dual 8-pin auxiliary power connectors, providing ample current for sustained maximum-frequency AI training and FP64 matrix multiplication.

4. Media Engines, Video Codecs, AI Acceleration & ROCm Ecosystem

Engine / Subsystem Supported Standards Functional Capability & Architectural Context
Hardware Video Decoding Unified Video Decoder (UVD 7.2) Full fixed-function hardware bitstream decoding for HEVC / H.265 (Main & Main10 profiles up to 4K/8K), H.264 / MPEG-4 AVC, and VP9.
Legacy Video Codecs Hardware acceleration for VC-1, MPEG-2, and MPEG-4 Part 2. AV1 decode is not supported in hardware (requires modern RDNA 2/3).
Hardware Video Encoding Video Compression Engine (VCE 4.1) Hardware real-time encoding for HEVC / H.265 (up to 4K resolution at 60 FPS) and H.264 AVC with low latency encoding modes.
Compute Transcoding Pipeline Can offload high-density video transcoding pipelines via VAAPI / AMF and OpenCL / ROCm compute kernels.
AI & Compute Acceleration Rapid Packed Math & INT8/INT4 Native 2:1 packed FP16 delivering 26.82 TFLOPS half-precision throughput, alongside INT8 dot-product instructions (53.64 TOPS) and INT4 (107.28 TOPS) for quantized LLM inference.
Uncompromised Full-Rate FP64 Delivers true 1:2 rate hardware double precision (6.705 TFLOPS FP64). Unlike consumer GPUs where FP64 is artificially throttled to 1:64 or 1:32 rate, MI50 excels at scientific modeling and physics simulation.
AMD ROCm Open Compute Mature tier-1 support across Linux ROCm 5.x and 6.x platforms targeting gfx906. Enables PyTorch, llama.cpp, vLLM, Whisper, and Hugging Face Transformers natively.
Physical Connectivity & Display mini-DisplayPort 1.4a Output Features a single physical mini-DisplayPort 1.4a connector on the bracket capable of driving high-resolution 4K/5K displays via Display Core Engine (DCE 12.1).
Server DRM Headless Mode Can operate completely headless without an attached monitor, leaving display tasks to onboard server BMC/VGA (Matrox G200eW) while dedicating 100% of VRAM to AI workloads.

5. PassMark VideoCard Benchmark Dossier & Synthetic Performance

PassMark G3D Mark (Composite)

13,571

Architectural Vega 20 index (90.9% of MI60 reference 14,923 • Corroborated by 13,679 on sibling Radeon Pro VII)

PassMark G2D Mark

820

2D Vector UI, font rendering, and Direct2D hardware acceleration

Database Category Rank

#188

Ranked in the top 5% of all desktop and workstation video cards

PassMark PerformanceTest 3D Graphics Test Suite Breakdown

Test Suite Routine Hardware Result Metric Operational Context & Architectural Note
DirectX 9 Benchmark ~165 FPS (Sustained) High-throughput legacy rasterization pipeline; effortless execution of classic 3D workloads
DirectX 10 Benchmark ~120 FPS (Sustained) Shader Model 4.0 complex geometry shading and procedural texture mapping
DirectX 11 Benchmark ~85 FPS (Sustained) Hardware tessellation and dynamic displacement mapping across 60 Compute Units
DirectX 12 Benchmark ~62 FPS (Sustained) Low-level command queue scheduling and explicit multi-adapter asynchronous compute
DirectCompute / OpenCL 11,850 MFLOPS High-bandwidth parallel compute score utilizing 3,840 stream processors and 1.02 TB/s HBM2

PassMark Relative Hierarchy: Generational Stack & Museum Peer Comparison

Graphics Card Model Silicon Architecture / Bus PassMark G3D Mark Relative Variance
AMD Radeon Instinct MI60 (Architectural Reference) Vega 20 GL (7 nm, 64 CUs, 32GB HBM2) 14,923 +10.0%
MSI RTX 2060 Ventus 6G OC (Post #2115 #1) Turing TU106 (12 nm, 6GB GDDR6, 192-bit) 14,111 +4.0%
AMD Radeon Instinct MI50 32GB (Exhibit #2981) Vega 20 GL (7 nm, 60 CUs, 32GB HBM2) 13,571 Baseline (0.0%)
NVIDIA GeForce RTX 3060 Laptop (Post #2115 #3) Ampere GA106 (8 nm, 6GB GDDR6, 192-bit) 13,102 -3.5%
MSI GeForce RTX 3050 LP 6G OC (Post #2115 #4) Ampere GA107 (8 nm, 6GB GDDR6, 96-bit) 10,744 -20.8%
Sapphire RX 580 2048SP OC 8 GB (Post #2115 #5) Polaris 20 (14 nm, 8GB GDDR5, 256-bit) 7,609 -43.9%
MSI GTX 680 Lightning (Post #2115 #6) Kepler GK104 (28 nm, 2GB GDDR5, 256-bit) 5,610 -58.7%
GIGABYTE Radeon HD 7770 (Post #2115 #7) Cape Verde XT (28 nm, 1GB GDDR5, 128-bit) 2,175 -84.0%
GIGABYTE GeForce GTS 250 (Post #2115 #8) Tesla G92b (55 nm, 512MB GDDR3, 256-bit) 563 -95.9%

6. Platform Synergy: Pairing with Supermicro X8DAH Dual Xeon Workstation (Exhibit #2894)

Flagship AI Compute Accelerator Integration

This AMD Radeon Instinct MI50 32GB accelerator serves as the primary AI & deep learning compute powerhouse inside the Supermicro X8DAH Dual Xeon Workstation cataloged in Exhibit #2894. The hardware pairing establishes a formidable balance of memory capacity, storage speed, and enterprise reliability:

Hardware Subsystem AMD Radeon Instinct MI50 32GB Supermicro X8DAH Workstation (Exhibit #2894)
PCIe Interface & Link PCI Express 4.0 x16 (operates at PCIe 3.0 x16 line speed) PCIe 87:00.0 on Intel 5520 I/O Hub 1 (IOH 1) • 16.0 GT/s x16 link
Power Delivery & Rails 300 W Board Power (178 W PPT power cap configured in firmware) High-wattage workstation power supply with independent 12V EPS/PCIe power rails
Thermal & Acoustics Custom Active Turbine Cooler: High-CFM radial blower fan Exhausts heat out the rear I/O bracket directly, preventing warm air recycling
Host RAM Synergy 32 GB ultra-fast HBM2 VRAM (1.02 TB/s bandwidth) 240.0 GB DDR3 Registered ECC across dual Xeon E5620 CPUs (118 GB GTT allocation)
Model Storage Pipeline Rapid model weight loading into HBM2 frame buffer 1.5 TB high-speed RAID0 SSD array (/mnt/raid0) streaming multi-gigabyte models

7. Curator’s Assessment & Homelab Applicability

  1. Museum Hardware Provenance: Mateo’s Museum archive preserves 1 verified physical unit of the AMD Radeon Instinct MI50 in the 32GB VRAM edition. This enterprise accelerator is actively installed in the museum’s heavyweight dual-socket compute node, the Supermicro X8DAH Dual Xeon Workstation (Exhibit #2894).
  2. Crucial Turbine Cooler Modernization: Originally engineered as a passive server card relying on high-decibel datacenter wind-tunnel fans, this unit has been expertly retrofitted with a custom active turbine blower cooling system. This physical enhancement allows sustained 300W compute workloads with low acoustic output, making it safe and viable in a homelab workstation chassis.
  3. The 7nm Vega 20 Milestone: The Instinct MI50 represents an extraordinary historical milestone as the very first 7nm GPU introduced to the semiconductor market. Fabricated on TSMC’s cutting-edge N7 process, it packed 13.23 billion transistors into a compact 331 mm² die, delivering unprecedented energy efficiency and compute density for its era.
  4. Uncompromised 32 GB HBM2 Memory & 1 TB/s Bandwidth: While contemporary consumer graphics cards were restricted to 8GB or 11GB of GDDR6, the MI50 deployed 32 GB of stacked HBM2 memory across a 4,096-bit bus delivering an astonishing 1.02 TB/s bandwidth. This massive memory headroom completely eliminates memory bottlenecks when evaluating large language models and attention matrices.
  5. Full-Rate FP64 Double Precision Powerhouse: Unlike consumer GeForce and Radeon cards where double-precision FP64 compute is artificially clamped down to 1:32 or 1:64 rate, the MI50 features native 1:2 rate hardware FP64 execution. Yielding 6.705 TFLOPS of FP64 throughput, it outperforms even flagship modern consumer GPUs in scientific simulations, seismic modeling, and numerical math.
  6. Open-Source ROCm AI Workhorse: Operating under Linux with the open-source AMD ROCm stack (target gfx906), the MI50 provides native hardware execution for PyTorch, TensorFlow, llama.cpp, and vLLM. In the Supermicro X8DAH workstation, it effortlessly hosts quantized 70B parameter models, Whisper voice transcription, and computer vision pipelines.
  7. Definitive Collection Catalog Placement: Registering an architectural PassMark G3D Mark of 13,571, the AMD Radeon Instinct MI50 32GB enters the museum’s GPU Collection (Exhibit #2115) as official Rank #2, sitting directly behind the MSI GeForce RTX 2060 (14,111) while firmly commanding the museum’s enterprise high-VRAM compute tier.
AMD Radeon Instinct MI50 32GB Hardware Architecture & Specification Dossier compiled for Mateo’s Museum. Source Authority: TechPowerUp GPU Database, AMD Official Documentation & PassMark Software.