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EPYC Embedded 3351 - AMD
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EPYC Embedded 3351
General Info
DesignerAMD
ManufacturerGlobalFoundries
Model Number3351
MarketServer, Embedded
IntroductionFebruary 21, 2018 (announced)
February 21, 2018 (launched)
General Specs
FamilyEPYC Embedded
Series3000
Frequency1,900 MHz
Turbo Frequency3,000 MHz (1 core),
2,750 MHz (12 cores)
Clock multiplier19
Microarchitecture
ISAx86-64 (x86)
MicroarchitectureZen
Core NameSnowy Owl
Core Family23
Core Model1
Process14 nm
Transistors9,600,000,000
TechnologyCMOS
Die213 mm²
MCPYes (2 dies)
Word Size64 bit
Cores12
Threads24
Max CPUs1 (Uniprocessor)
Max Memory1 TiB
Electrical
TDP80 W
Tjunction0 °C – 95 °C
Packaging
PackageSP4 (BGA)

EPYC Embedded 3351 is a 64-bit dodeca-core x86 embedded microprocessor introduced by AMD in early 2018 for dense servers and edge devices. Fabricated on a 14 nm process based on the Zen microarchitecture, this chip operates at 1.9 GHz with a TDP of 80 W and a turbo frequency of up to 3 GHz. The 3351 supports up to 1 TiB of quad-channel DDR4-2666 memory.


Cache[edit]

Main article: Zen § Cache

[Edit/Modify Cache Info]

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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$1.125 MiB
1,152 KiB
1,179,648 B
0.0011 GiB
L1I$768 KiB
0.75 MiB
786,432 B
7.324219e-4 GiB
12x64 KiB4-way set associative 
L1D$384 KiB
0.375 MiB
393,216 B
3.662109e-4 GiB
12x32 KiB8-way set associativewrite-back

L2$6 MiB
6,144 KiB
6,291,456 B
0.00586 GiB
  12x512 KiB8-way set associativewrite-back

L3$32 MiB
32,768 KiB
33,554,432 B
0.0313 GiB
  4x8 MiB16-way set associativewrite-back

Memory controller[edit]

[Edit/Modify Memory Info]

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Integrated Memory Controller
Max TypeDDR4-2666
Supports ECCYes
Max Mem1 TiB
Controllers4
Channels4
Max Bandwidth79.47 GiB/s
Bandwidth
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

Expansions[edit]

The EPYC Embedded 3351 has 64 PCIe lanes that are MUX'ed with a number of other ports and can be reconfigured as either SATA ports (up to 16 such ports), or as GbE ports (up to 10 such ports), or any mixed configuration of those options.

[Edit/Modify Expansions Info]

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Expansion Options
PCIeRevision: 3.0
Max Lanes: 64
Configuration: x16, x8, x4, x2
SATARevision: 3.0
Max Ports: 16

[Edit/Modify Network Info]

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Networking
Ethernet
10GbEYes (Ports: 10)

Features[edit]

[Edit/Modify Supported Features]

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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
NXNo-eXecute
SMTSimultaneous Multithreading
AMD-ViAMD-Vi (I/O MMU virtualization)
AMD-VAMD Virtualization
SMESecure Memory Encryption
TSMETransparent SME
SEVSecure Encrypted Virtualization
SenseMISenseMI Technology
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
EPYC Embedded 3351 - AMD#pcie +
base frequency1,900 MHz (1.9 GHz, 1,900,000 kHz) +
clock multiplier19 +
core count12 +
core family23 +
core model1 +
core nameSnowy Owl +
designerAMD +
die area213 mm² (0.33 in², 2.13 cm², 213,000,000 µm²) +
die count2 +
familyEPYC Embedded +
first announcedFebruary 21, 2018 +
first launchedFebruary 21, 2018 +
full page nameamd/epyc embedded/3351 +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
has amd amd-v technologytrue +
has amd amd-vi technologytrue +
has amd secure encrypted virtualization technologytrue +
has amd secure memory encryption technologytrue +
has amd sensemi technologytrue +
has amd transparent secure memory encryption technologytrue +
has ecc memory supporttrue +
has featureAdvanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Encryption Standard Instruction Set Extension + and SenseMI Technology +
has simultaneous multithreadingtrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
is multi-chip packagetrue +
isax86-64 +
isa familyx86 +
l1$ size1.125 MiB (1,152 KiB, 1,179,648 B, 0.0011 GiB) +
l1d$ description8-way set associative +
l1d$ size0.375 MiB (384 KiB, 393,216 B, 3.662109e-4 GiB) +
l1i$ description4-way set associative +
l1i$ size0.75 MiB (768 KiB, 786,432 B, 7.324219e-4 GiB) +
l2$ description8-way set associative +
l2$ size6 MiB (6,144 KiB, 6,291,456 B, 0.00586 GiB) +
l3$ description16-way set associative +
l3$ size32 MiB (32,768 KiB, 33,554,432 B, 0.0313 GiB) +
ldateFebruary 21, 2018 +
manufacturerGlobalFoundries +
market segmentServer + and Embedded +
max cpu count1 +
max junction temperature368.15 K (95 °C, 203 °F, 662.67 °R) +
max memory1,048,576 MiB (1,073,741,824 KiB, 1,099,511,627,776 B, 1,024 GiB, 1 TiB) +
max memory channels4 +
max sata ports16 +
microarchitectureZen +
min junction temperature273.15 K (0 °C, 32 °F, 491.67 °R) +
model number3351 +
nameEPYC Embedded 3351 +
process14 nm (0.014 μm, 1.4e-5 mm) +
series3000 +
supported memory typeDDR4-2666 +
tdp80 W (80,000 mW, 0.107 hp, 0.08 kW) +
technologyCMOS +
thread count24 +
transistor count9,600,000,000 +
turbo frequency (12 cores)2,750 MHz (2.75 GHz, 2,750,000 kHz) +
turbo frequency (1 core)3,000 MHz (3 GHz, 3,000,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +