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Latest revision Your text
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|first announced=
 
|first announced=
 
|first launched=
 
|first launched=
−
|last order=2028
+
|release price=
 
|family=EPYC Embedded
 
|family=EPYC Embedded
 
|series=3000
 
|series=3000
−
|locked=Yes
 
 
|frequency=2,500 MHz
 
|frequency=2,500 MHz
−
|turbo frequency1=3,100 MHz
 
 
|turbo frequency8=3,100 MHz
 
|turbo frequency8=3,100 MHz
 
|clock multiplier=25
 
|clock multiplier=25
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|core family=23
 
|core family=23
 
|core model=1
 
|core model=1
−
|core stepping=B2
 
−
|cpuid=0x00800F12
 
 
|process=14 nm
 
|process=14 nm
−
|transistors=4,800,000,000
+
|transistors=9,600,000,000
 
|technology=CMOS
 
|technology=CMOS
 
|die area=213 mm²
 
|die area=213 mm²
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|package name 1=amd,sp4r2
 
|package name 1=amd,sp4r2
 
}}
 
}}
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'''EPYC Embedded 3255''' is a {{arch|64}} [[octa-core]] [[x86]] embedded microprocessor designed by [[AMD]] for dense servers and edge devices. This processor has CPU cores based on the {{amd|Zen|Zen microarchitecture|l=arch}} and is fabricated on a [[GlobalFoundries]] [[14 nm#GlobalFoundries|14 nm]] process. It operates at 2.5 GHz with a {{abbr|TDP}} of 55 W and a {{amd|precision boost|turbo frequency}} of up to 3.1 GHz. This model supports a configurable TDP-down of 30 W, is distinguished from other EPYC Embedded 3000 Series processors by an [[has feature::industrial temperature range]] of -40 to 105 °C, and supports up to 512 GiB of dual-channel DDR4-2666 memory.
+
'''EPYC Embedded 3255''' is a {{arch|64}} [[octa-core]] [[x86]] embedded microprocessor for dense servers and edge devices. Fabricated on a [[14 nm process]] based on the {{amd|Zen|Zen microarchitecture|l=arch}}, this chip operates at 2.5 GHz with a TDP of 55 W and a {{amd|precision boost|turbo frequency}} of up to 3.1 GHz. This model supports a configurable TDP-down of 30 W and is distinguished from other EPYC Embedded 3000 Series processors by an [[has feature::industrial temperature range]] of -40 to 105 °C. The 3255 supports up to 512 GiB of dual-channel DDR4-2666 memory.
  
 
== Cache ==
 
== Cache ==
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|l3 cache=16 MiB
 
|l3 cache=16 MiB
 
|l3 break=2 × 8 MiB
 
|l3 break=2 × 8 MiB
−
|l3 desc=16-way set associative
 
−
|l3 policy=write-back
 
 
}}
 
}}
  
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|controllers=2
 
|controllers=2
 
|channels=2
 
|channels=2
−
|max bandwidth=42.67 GB/s
+
|max bandwidth=39.74 GiB/s
−
|bandwidth schan=21.33 GB/s
+
|bandwidth schan=19.87 GiB/s
−
|bandwidth dchan=42.67 GB/s
+
|bandwidth dchan=39.74 GiB/s
 
}}
 
}}
 +
 +
{{amd ryzen threadripper memory configs}}
  
 
== Expansions ==
 
== Expansions ==
−
The EPYC Embedded 3255 integrates two 8-port, 16-lane PCIe Gen 1/2/3 (8 GT/s) controllers. All lanes are configurable as x16/x8/x4/x2/x1 wide (e.g. 1x4 + 4x1 + 1x8) PCIe links, some lanes alternatively as SATA Gen 1/2/3 (6 Gb/s) or 10 Gbit/s Ethernet ports. Up to eight SATA ports and four GbE ports are available on this model, as well as four USB 3.1 Gen 1 (5 Gb/s) ports, and the following low speed interfaces: {{abbr|eMMC}}, {{abbr|UART}}, {{abbr|LPC}}, {{abbr|SPI/eSPI}}, {{abbr|I<sup>2</sup>C}}, {{abbr|SMBus}}, {{abbr|GPIO}}.
+
The EPYC Embedded 3255 supports up to 32 PCIe Gen 3 (8 GT/s) lanes. Some of these lanes can be configured as SATA 3 (6 Gb/s) and 10 Gigabit Ethernet ports. Up to 8 SATA ports and 4 GbE ports are available on this model, as well as four USB 3.1 Gen 1 (5 Gb/s) ports, and the following low speed interfaces: EMMC, eSPI, GPIO, I2C, LPC, SMBus, SPI, UART.
  
 
{{expansions main
 
{{expansions main
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|pcie config 3=x4
 
|pcie config 3=x4
 
|pcie config 4=x2
 
|pcie config 4=x2
−
|pcie config 5=x1
 
 
}}
 
}}
 
{{expansions entry
 
{{expansions entry
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}}
 
}}
  
−
== Features ==  
+
== Features ==
 
{{x86 features
 
{{x86 features
 
|real=Yes
 
|real=Yes
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|sse42=Yes
 
|sse42=Yes
 
|sse4a=Yes
 
|sse4a=Yes
−
|sse_gfni=No
 
 
|avx=Yes
 
|avx=Yes
−
|avx_gfni=No
 
 
|avx2=Yes
 
|avx2=Yes
 
|avx512f=No
 
|avx512f=No
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|avx512vbmi=No
 
|avx512vbmi=No
 
|avx5124fmaps=No
 
|avx5124fmaps=No
−
|avx512vnni=No
 
 
|avx5124vnniw=No
 
|avx5124vnniw=No
 
|avx512vpopcntdq=No
 
|avx512vpopcntdq=No
−
|avx512gfni=No
 
−
|avx512vaes=No
 
−
|avx512vbmi2=No
 
−
|avx512bitalg=No
 
−
|avx512vpclmulqdq=No
 
 
|abm=Yes
 
|abm=Yes
 
|tbm=No
 
|tbm=No
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|clmul=Yes
 
|clmul=Yes
 
|f16c=Yes
 
|f16c=Yes
−
|bfloat16=No
 
 
|tbt1=No
 
|tbt1=No
 
|tbt2=No
 
|tbt2=No
 
|tbmt3=No
 
|tbmt3=No
−
|tvb=No
 
 
|bpt=No
 
|bpt=No
 
|eist=No
 
|eist=No
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|osguard=No
 
|osguard=No
 
|intqat=No
 
|intqat=No
−
|dlboost=No
 
 
|3dnow=No
 
|3dnow=No
 
|e3dnow=No
 
|e3dnow=No
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|amdtsme=Yes
 
|amdtsme=Yes
 
|amdsev=Yes
 
|amdsev=Yes
−
|rvi=No
+
|rvi=
 
|smt=Yes
 
|smt=Yes
 
|sensemi=Yes
 
|sensemi=Yes
−
|xfr=No
+
|xfr=
−
|xfr2=No
+
|mxfr=
−
|mxfr=No
+
|amdpb=
−
|amdpb=No
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|amdpb2=
−
|amdpb2=No
 
−
|amdpbod=No
 
 
}}
 
}}
  
−
== Bibliography ==
+
== References ==
−
* {{cite techdoc|title=Product Brief: AMD EPYC™ Embedded 3000 Family|file=3000-Family-Product-Brief.pdf|publ=AMD|pid=1887102|date=2018}}
+
* [https://www.amd.com/system/files/documents/updated-3000-family-product-brief.pdf "AMD EPYC™ Embedded 3000 Family"], AMD Publ. #1887102, Rev. E, 2019
−
* {{cite techdoc|title=Product Brief: AMD EPYC™ Embedded 3000 Family|url=https://www.amd.com/system/files/documents/updated-3000-family-product-brief.pdf|publ=AMD|pid=1887102|rev=E|date=2019}}
+
* [https://www.amd.com/en/products/specifications/embedded "Embedded Processor Specifications"]. <i>AMD.com</i>. Retrieved October 2020.
−
* [https://www.amd.com/en/products/specifications/embedded "Embedded Processor Specifications"]. AMD.com. Retrieved October 2020.
 

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Facts about "EPYC Embedded 3255 - AMD"
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EPYC Embedded 3255 - AMD#pcie +
base frequency2,500 MHz (2.5 GHz, 2,500,000 kHz) +
clock multiplier25 +
core count8 +
core family23 +
core model1 +
core nameSnowy Owl +
core steppingB2 +
cpuid0x00800F12 +
designerAMD +
die area213 mm² (0.33 in², 2.13 cm², 213,000,000 µm²) +
familyEPYC Embedded +
full page nameamd/epyc embedded/3255 +
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 featureindustrial temperature range +, Advanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Encryption Standard Instruction Set Extension + and SenseMI Technology +
has locked clock multipliertrue +
has simultaneous multithreadingtrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
isax86-64 +
isa familyx86 +
l1$ size768 KiB (786,432 B, 0.75 MiB) +
l1d$ description8-way set associative +
l1d$ size256 KiB (262,144 B, 0.25 MiB) +
l1i$ description4-way set associative +
l1i$ size512 KiB (524,288 B, 0.5 MiB) +
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) +
last order2028 +
ldate1900 +
manufacturerGlobalFoundries +
market segmentServer + and Embedded +
max cpu count1 +
max junction temperature378.15 K (105 °C, 221 °F, 680.67 °R) +
max memory524,288 MiB (536,870,912 KiB, 549,755,813,888 B, 512 GiB, 0.5 TiB) +
max memory bandwidth39.74 GiB/s (40,693.283 MiB/s, 42.67 GB/s, 42,670 MB/s, 0.0388 TiB/s, 0.0427 TB/s) +
max memory channels2 +
max sata ports8 +
max usb ports4 +
microarchitectureZen +
min junction temperature233.15 K (-40 °C, -40 °F, 419.67 °R) +
model number3255 +
nameEPYC Embedded 3255 +
packageSP4r2 +
part numberPE3255BGR88AF +
process14 nm (0.014 μm, 1.4e-5 mm) +
series3000 +
smp max ways1 +
supported memory typeDDR4-2666 +
tdp55 W (55,000 mW, 0.0738 hp, 0.055 kW) +
tdp down30 W (30,000 mW, 0.0402 hp, 0.03 kW) +
technologyCMOS +
thread count16 +
transistor count4,800,000,000 +
turbo frequency (1 core)3,100 MHz (3.1 GHz, 3,100,000 kHz) +
turbo frequency (8 cores)3,100 MHz (3.1 GHz, 3,100,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +