From WikiChip
Ryzen Threadripper 1900 - AMD
< amd‎ | ryzen threadripper

Edit Values
Ryzen Threadripper 1900
General Info
Model Number1900
Part NumberYD1900A9U8SAE
General Specs
FamilyRyzen Threadripper
Frequency3,100 MHz
Turbo Frequency3,700 MHz (1 core)
Bus rate4 × 8 GT/s
Clock multiplier31
ISAx86-64 (x86)
Core Family23
Core Model1
Core SteppingB1
Process14 nm
Die213 mm²
MCPYes (2 dies)
Word Size64 bit
Max CPUs1 (Uniprocessor)
Max Memory1 TiB
TDP125 W
PackageFCLGA-4094 (LGA)
SocketSocket TR4

Ryzen Threadripper 1900 is a 64-bit octa-core high-performance x86 desktop microprocessor set to be introduced by AMD in mid-2017. The 1900, which is based on their Zen microarchitecture, is fabricated on a 14 nm process. The 1900 operates at a base frequency of 3.1 GHz with a TDP of 125 W and a Boost frequency of 3.7 GHz. This MPU supports up to 1 TiB of quad-channel DDR4-2666 ECC memory.

DIL16 Blank.svg Preliminary Data! Information presented in this article deal with a microprocessor or chip that was recently announced or leaked, thus missing information regarding its features and exact specification. Information may be incomplete and can change by final release.


Main article: Zen § Cache

[Edit/Modify Cache Info]

hierarchy icon.svg
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
0.75 MiB
786,432 B
7.324219e-4 GiB
L1I$512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
8x64 KiB4-way set associative 
L1D$256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
8x32 KiB8-way set associativewrite-back

L2$4 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
  8x512 KiB8-way set associativewrite-back

L3$16 MiB
16,384 KiB
16,777,216 B
0.0156 GiB
  2x8 MiB16-way set associative 

Memory controller[edit]

This CPU supports 8 DIMMs of rates 1,333 MT/s - 3,200 MT/s (UDIMM/SODIMM).

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR4-2666
Supports ECCYes
Max Mem1 TiB
Max Bandwidth79.47 GiB/s
Single 19.87 GiB/s
Double 39.74 GiB/s
Quad 79.47 GiB/s
[Edit] Memory Configurations
Quad Channel Single Rank 1 DIMM DDR4-2666
2 DIMMs DDR4-2133
Double Rank 1 DIMM DDR4-2400
2 DIMMs DDR4-1866


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]

ide icon.svg
Expansion Options
Max Lanes60
Configsx16, x8, x4, x1
  • eMMC, LPC, SMBus, SPI/eSPI


This processor has no integrated graphics.


[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features
MMXMMX Extension
EMMXExtended MMX Extension
SSEStreaming SIMD Extensions
SSE2Streaming SIMD Extensions 2
SSE3Streaming SIMD Extensions 3
SSSE3Supplemental SSE3
SSE4.1Streaming SIMD Extensions 4.1
SSE4.2Streaming SIMD Extensions 4.2
SSE4aStreaming SIMD Extensions 4a
AVXAdvanced Vector Extensions
AVX2Advanced Vector Extensions 2
ABMAdvanced Bit Manipulation
BMI1Bit Manipulation Instruction Set 1
BMI2Bit Manipulation Instruction Set 2
FMA33-Operand Fused-Multiply-Add
AESAES Encryption Instructions
RdRandHardware RNG
SHASHA Extensions
ADXMulti-Precision Add-Carry
CLMULCarry-less Multiplication Extension
F16C16-bit Floating Point Conversion
x86-1616-bit x86
x86-3232-bit x86
x86-6464-bit x86
RealReal Mode
ProtectedProtected Mode
SMMSystem Management Mode
FPUIntegrated x87 FPU
SMTSimultaneous Multithreading
AMD-ViAMD-Vi (I/O MMU virtualization)
AMD-VAMD Virtualization
SenseMISenseMI Technology
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
Ryzen Threadripper 1900 - AMD#package +
base frequency3,100 MHz (3.1 GHz, 3,100,000 kHz) +
bus links4 +
bus rate8,000 MT/s (8 GT/s, 8,000,000 kT/s) +
chipsetX399 +
clock multiplier31 +
core count8 +
core family23 +
core model1 +
core steppingB1 +
designerAMD +
die area213 mm² (0.33 in², 2.13 cm², 213,000,000 µm²) +
die count2 +
familyRyzen Threadripper +
full page nameamd/ryzen threadripper/1900 +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
has amd amd-v technologytrue +
has amd amd-vi technologytrue +
has amd sensemi technologytrue +
has ecc memory supporttrue +
has featureAdvanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Encryption Standard Instruction Set Extension + and SenseMI Technology +
has locked clock multiplierfalse +
has simultaneous multithreadingtrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
is multi-chip packagetrue +
isax86-64 +
isa familyx86 +
l1$ size0.75 MiB (768 KiB, 786,432 B, 7.324219e-4 GiB) +
l1d$ description8-way set associative +
l1d$ size0.25 MiB (256 KiB, 262,144 B, 2.441406e-4 GiB) +
l1i$ description4-way set associative +
l1i$ size0.5 MiB (512 KiB, 524,288 B, 4.882812e-4 GiB) +
l2$ description8-way set associative +
l2$ size4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) +
l3$ description16-way set associative +
l3$ size16 MiB (16,384 KiB, 16,777,216 B, 0.0156 GiB) +
ldate3000 +
manufacturerGlobalFoundries +
market segmentDesktop +
max cpu count1 +
max memory1,048,576 MiB (1,073,741,824 KiB, 1,099,511,627,776 B, 1,024 GiB, 1 TiB) +
max pcie lanes60 +
microarchitectureZen +
model number1900 +
nameRyzen Threadripper 1900 +
packageFCLGA-4094 +
part numberYD1900A9U8SAE +
process14 nm (0.014 μm, 1.4e-5 mm) +
seriesRyzen +
socketSocket SP3 +
supported memory typeDDR4-2666 +
tdp125 W (125,000 mW, 0.168 hp, 0.125 kW) +
technologyCMOS +
thread count16 +
transistor count9,600,000,000 +
turbo frequency (1 core)3,700 MHz (3.7 GHz, 3,700,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +