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Ryzen Threadripper 1950X
General Info
Designer	AMD
Manufacturer	GlobalFoundries
Model Number	1950X
Part Number	YD195XA8AEWOF
Market	Desktop
Introduction	July 13, 2017 (announced) August 10, 2017 (launched)
Release Price	$999
Shop	Amazon
General Specs
Family	Ryzen Threadripper
Series	Ryzen
Locked	No
Frequency	3,400 MHz
Turbo Frequency	4,000 MHz (1 core)
Bus rate	4 × 8 GT/s
Clock multiplier	34
CPUID	0x00800F11
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Zen
Chipset	Promontory
Core Name	Whitehaven
Core Family	23
Core Model	1
Core Stepping	B1
Process	14 nm
Transistors	9,600,000,000
Technology	CMOS
Die	213 mm²
MCP	Yes (2 dies)
Word Size	64 bit
Cores	16
Threads	32
Max Memory	2 TiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
TDP	180 W
Packaging
Package	TR4, FCLGA-4094 (FC-OLGA)
Dimension	75.4 mm × 58.5 mm × 6.26 mm
Pitch	0.87 mm × 1 mm
Contacts	4094
Socket	TR4, SP3r2, sTR4
Succession
Threadripper 2950X

Ryzen Threadripper 1950X is a 64-bit hexadeca-core high-performance x86 desktop microprocessor introduced by AMD in mid-2017. The 1950X, which is based on their Zen microarchitecture, is fabricated on a 14 nm process. This processor operates at a base frequency of 3.4 GHz with a TDP of 180 W and a boost frequency of up to 4 GHz. This MPU supports up to 2 TiB of quad-channel DDR4-2666 memory.

Cache

Main article: Zen § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 1.5 MiB 1,536 KiB 1,572,864 B L1I$ 1 MiB 1,024 KiB 1,048,576 B 16x64 KiB 4-way set associative   L1D$ 512 KiB 524,288 B 0.5 MiB 16x32 KiB 8-way set associative write-back L2$ 8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB     16x512 KiB 8-way set associative write-back L3$ 32 MiB 32,768 KiB 33,554,432 B 0.0313 GiB     4x8 MiB 16-way set associative

Memory controller

This processor supports up to 512 GiB per memory channel for a total of 2 TiB.

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-2666 Supports ECC Yes Max Mem 2 TiB Controllers 4 Channels 4 Max Bandwidth 79.47 GiB/s 81,377.28 MiB/s 85.33 GB/s 85,330.263 MB/s 0.0776 TiB/s 0.0853 TB/s Bandwidth Single 19.87 GiB/s Double 39.74 GiB/s Quad 79.47 GiB/s

[Edit] Official AMD Supported Memory Configurations
Quad Channel	Single Rank	1 DIMM per channel	4 of 8	DDR4-2666
		2 DIMMs per channel	8 of 8	DDR4-2133
	Dual Rank	1 DIMM per channel	4 of 8	DDR4-2400
		2 DIMMs per channel	8 of 8	DDR4-1866

Expansions

This processor includes 60 PCIe lanes with PHY of 16 lanes may each have a maximum of 8 PCIe ports (x1, x2, x4, x8, x16).

[Edit/Modify Expansions Info]

	Expansion Options
	PCIe Revision 3.0 Max Lanes 60 Configs x16, x8, x4, x1

• eMMC, LPC, SMBus, SPI/eSPI

Graphics

This processor has no integrated graphics.

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 SSE4a Streaming SIMD Extensions 4a AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG SHA SHA Extensions ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute SMT Simultaneous Multithreading AMD-Vi AMD-Vi (I/O MMU virtualization) AMD-V AMD Virtualization SenseMI SenseMI Technology XFR Extended Frequency Range

• This model has full XFR support, allowing for an additional +200 MHz
  0.2 GHz
  200,000 kHz
  
  boost frequency.

Frequencies

See also: AMD's CPU Frequency Behavior

Beyond the frequencies shown below, with a sufficiently good cooling, this processor has XFR suport for +200 MHz. That is, with good enough cooling, this processor can reach 4.2 GHz on up to four cores.

[Modify Frequency Info]

Mode	Base	Turbo Frequency/Active Cores
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Normal	3,400 MHz	4,000 MHz	4,000 MHz	4,000 MHz	4,000 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz	3,700 MHz