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AMD Ryzen 9 3950X [Desktop]

General

Vendor
  • AMD
Family
  • Ryzen 9
Model
  • 3950X
Architecture
  • Zen 2
Core Codenames
  • Matisse
Release Dates
  • September, 2019

Package

Package Types
  • 1331-pin PGA
Sockets
  • PGA1331 (Socket AM4)
Lithography
  • 7 nm
Package and Die
  • 40 × 40 mm package
  • 283 mm² die area
  • ? billion transistors
Core Steppings
  • MTS-B0
CPUIDs
  • 870F10
Part Numbers

Core Configuration

Core Structure

Number of Cores
  • 16
Number of Threads
  • 32
Multi-Threaded Cores
  • Yes (simultaneous)
Core Clock Frequency
  • 3.50 GHz
Turbo Core Clock Frequency
  • 4.70 GHz (1 – 16 cores)
Base Clock Frequency
  • 100 MHz
Clock Multiplier
  • × 35
Unlocked Clock Multiplier
  • Yes

Memory

Level 1 Instruction Cache
  • 32 kB × 16
  • Full-speed
Level 1 Data Cache
  • 32 kB × 16
  • Full-speed
Level 2 Cache
  • 512 kB × 16
  • Full-speed
Level 3 Cache
  • 16 MB × 4
  • Full-speed

Data Connection

Data Bus

Data Connection Type
  • External Unified Media Interface 3.0
  • 4-bit (PCIe 4.0 ×4)
  • Single data rate
UMI Frequency
  • 16000 MHz (initial)
  • 16000 MT/s (effective)

Electrical and Thermal

Power

VID Range
  • 0.695 — 1.5 V
Configurable TDP
  • No
TDP
  • 105 W
Maximum Operating Temperature
  • 85°C

Integrated Graphics

Graphics

Integrated Graphics
  • None

Features

Instruction Sets
  • x86 / x86_64
Instruction Set Extensions
  • ABM / BMI1 / BMI2
  • ADX
  • AES
  • AVX1 / AVX1.1 / AVX2
  • F16C
  • FMA3
  • MMX
  • SSE / SSE2 / SSE3 / SSE4.1 / SSE4.2 / SSE4a / SSSE3
  • SHA1
Core Features
  • AMD SenseMI technology
  • AMD StoreMI technology
  • AMD-V
  • AMD64
  • EVP
  • Extended Frequency Range 2
  • Integrated memory controller (DDR4)
  • Neural Network Prediction
  • Precision Boost 2
  • Precision Boost Overdrive
  • Rapid Virtualization Indexing
  • Simultaneous multi-threading
  • Smart Prefetch
Low-Power Features
  • C-states
  • Pure Power

Compatibility

Platform Support
  • Matisse with Promontory chipsets
Supported Chipsets
  • AMD B450 / B550
  • AMD X470 / X570
Supported RAM Types
  • 64-bit single-channel memory bus
  • 128-bit dual-channel memory bus
  • DDR4-2133 / DDR4-2400 / DDR4-2666 / DDR4-2800 / DDR4-2933 / DDR4-3200
Maximum Memory Bandwidth
  • Up to 25.6 GB/s (single-channel)
  • Up to 51.2 GB/s (dual-channel)
RAM Limit
  • 64 GB

Notes

Notes for This Processor
  1. OEM processor.
  2. Boxed processor.

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