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Ryzen Threadripper 1900X
General Info
Designer	AMD
Manufacturer	GlobalFoundries
Model Number	1900X
Part Number	YD190XA8AEWOF
Market	Desktop
Introduction	July 30, 2017 (announced) August 31, 2017 (launched)
Release Price	$549
Shop	Amazon
General Specs
Family	Ryzen Threadripper
Series	Ryzen
Locked	No
Frequency	3,800 MHz
Turbo Frequency	4,000 MHz (1 core)
Bus rate	4 × 8 GT/s
Clock multiplier	38
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	8
Threads	16
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

Ryzen Threadripper 1900X is a 64-bit octa-core high-performance x86 desktop microprocessor introduced by AMD in mid-2017. The 1900X, which is based on their Zen microarchitecture, is fabricated on a 14 nm process. This processor operates at a base frequency of 3.8 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$ 768 KiB 786,432 B 0.75 MiB L1I$ 512 KiB 524,288 B 0.5 MiB 8x64 KiB 4-way set associative   L1D$ 256 KiB 262,144 B 0.25 MiB 8x32 KiB 8-way set associative write-back L2$ 4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB     8x512 KiB 8-way set associative write-back L3$ 16 MiB 16,384 KiB 16,777,216 B 0.0156 GiB     2x8 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). Note that 48 lanes are dedicated for multiple GPUs with the other 12 lanes for I/O.

[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
Normal	3,800 MHz	4,000 MHz	4,000 MHz	4,000 MHz	4,000 MHz	3,900 MHz	3,900 MHz	3,900 MHz	3,900 MHz