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Difference between revisions of "amd/epyc/7642"
< amd‎ | epyc

(→‎Cache)
(Added missing data. Changed base & turbo freq as specified in datasheet & on AMD website. 9 dies b/c 256 MiB L3$.)
 
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|model number=7642
 
|model number=7642
 
|part number=100-000000074
 
|part number=100-000000074
 +
|part number 2=100-100000074WOF
 
|market=Server
 
|market=Server
 
|first announced=August 7, 2019
 
|first announced=August 7, 2019
 
|first launched=August 7, 2019
 
|first launched=August 7, 2019
 +
|release price=$4775.00
 
|family=EPYC
 
|family=EPYC
 
|series=7002
 
|series=7002
 
|locked=Yes
 
|locked=Yes
−
|frequency=2,400 MHz
+
|frequency=2,300 MHz
−
|turbo frequency=3,400 MHz
+
|turbo frequency=3,300 MHz
−
|clock multiplier=24
+
|clock multiplier=23
 
|isa=x86-64
 
|isa=x86-64
 
|isa family=x86
 
|isa family=x86
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|core name=Rome
 
|core name=Rome
 
|core family=23
 
|core family=23
 +
|core model=49
 +
|core stepping=B0
 
|process=7 nm
 
|process=7 nm
 
|process 2=14 nm
 
|process 2=14 nm
 
|technology=CMOS
 
|technology=CMOS
 
|mcp=Yes
 
|mcp=Yes
−
|die count=7
+
|die count=9
 
|word size=64 bit
 
|word size=64 bit
 
|core count=48
 
|core count=48
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|package name 1=amd,socket_sp3
 
|package name 1=amd,socket_sp3
 
}}
 
}}
−
'''EPYC 7642''' is a {{arch|64}} [[48-core]] [[x86]] server microprocessor designed and introduced by [[AMD]] in mid-[[2019]]. This [[multi-chip package|multi-chip processor]], which is based on the {{amd|Zen 2|Zen 2 microarchitecture|l=arch}}, incorporates logic fabricated [[TSMC]] [[7 nm process]] and I/O fabricated on [[GlobalFoundries]] [[14 nm process]]. The 7642 has a TDP of 225 W with a base frequency of 2.4 GHz and a {{amd|precision boost|boost}} frequency of up to 3.4 GHz. This processor supports up to two-way [[symmetric multiprocessing|SMP]] and up to 4 TiB of eight channels DDR4-3200 memory per socket.
+
'''EPYC 7642''' is a {{arch|64}} [[48-core]] [[x86]] server microprocessor designed and introduced by [[AMD]] in mid-[[2019]]. This [[multi-chip package|multi-chip processor]], which is based on the {{amd|Zen 2|Zen 2 microarchitecture|l=arch}}, incorporates logic fabricated [[TSMC]] [[7 nm process]] and I/O fabricated on [[GlobalFoundries]] [[14 nm process]]. The 7642 has a TDP of 225 W with a base frequency of 2.3 GHz and a {{amd|precision boost|boost}} frequency of up to 3.3 GHz. This processor supports up to two-way [[symmetric multiprocessing|SMP]] and up to 4 TiB of eight channels DDR4-3200 memory per socket.
  
 
== Cache ==
 
== Cache ==
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|l1d break=48x32 KiB
 
|l1d break=48x32 KiB
 
|l1d desc=8-way set associative
 
|l1d desc=8-way set associative
 +
|l1d policy=write-back
 
|l2 cache=24 MiB
 
|l2 cache=24 MiB
 
|l2 break=48x512 KiB
 
|l2 break=48x512 KiB
 
|l2 desc=8-way set associative
 
|l2 desc=8-way set associative
 
|l2 policy=write-back
 
|l2 policy=write-back
−
|l3 cache=192 MiB
+
|l3 cache=256 MiB
−
|l3 break=12x16 MiB
+
|l3 break=16x16 MiB
 
}}
 
}}
  
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}}
 
}}
  
−
== Features ==  
+
== Features ==
 
{{x86 features
 
{{x86 features
 
|real=Yes
 
|real=Yes
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|amdpbod=No
 
|amdpbod=No
 
}}
 
}}
 +
 +
== References ==
 +
* [https://www.amd.com/en/products/cpu/amd-epyc-7642 "AMD EPYC™ 7642"]. <i>AMD.com</i>. Retrieved October 2020.
 +
* [https://www.amd.com/system/files/documents/AMD-EPYC-7002-Series-Datasheet.pdf "AMD EPYC™ 7002 Series Processors: A New Standard for the Modern Datacenter"], AMD Publ. #LE-70002, Rev. 02, April 2020

Latest revision as of 19:52, 8 January 2021

Edit Values
EPYC 7642
General Info
DesignerAMD
ManufacturerTSMC, GlobalFoundries
Model Number7642
Part Number100-000000074,
100-100000074WOF
MarketServer
IntroductionAugust 7, 2019 (announced)
August 7, 2019 (launched)
Release Price$4775.00
ShopAmazon
General Specs
FamilyEPYC
Series7002
LockedYes
Frequency2,300 MHz
Turbo Frequency3,300 MHz
Clock multiplier23
Microarchitecture
ISAx86-64 (x86)
MicroarchitectureZen 2
Core NameRome
Core Family23
Core Model49
Core SteppingB0
Process7 nm, 14 nm
TechnologyCMOS
MCPYes (9 dies)
Word Size64 bit
Cores48
Threads96
Max Memory4 TiB
Multiprocessing
Max SMP2-Way (Multiprocessor)
Electrical
TDP225 W
Packaging
PackageSP3, FCLGA-4094 (FC-OLGA)
Dimension75.4 mm × 58.5 mm × 6.26 mm
Pitch0.87 mm × 1 mm
Contacts4094
SocketSP3, LGA-4094

EPYC 7642 is a 64-bit 48-core x86 server microprocessor designed and introduced by AMD in mid-2019. This multi-chip processor, which is based on the Zen 2 microarchitecture, incorporates logic fabricated TSMC 7 nm process and I/O fabricated on GlobalFoundries 14 nm process. The 7642 has a TDP of 225 W with a base frequency of 2.3 GHz and a boost frequency of up to 3.3 GHz. This processor supports up to two-way SMP and up to 4 TiB of eight channels DDR4-3200 memory per socket.

Cache[edit]

Main article: Zen 2 § 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$3 MiB
3,072 KiB
3,145,728 B
L1I$1.5 MiB
1,536 KiB
1,572,864 B
48x32 KiB8-way set associative 
L1D$1.5 MiB
1,536 KiB
1,572,864 B
48x32 KiB8-way set associativewrite-back
L2$24 MiB
24,576 KiB
25,165,824 B
0.0234 GiB
  48x512 KiB8-way set associativewrite-back
L3$256 MiB
262,144 KiB
268,435,456 B
0.25 GiB
  16x16 MiB  

Memory controller[edit]

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR4-3200
Supports ECCYes
Max Mem4 TiB
Controllers8
Channels8
Max Bandwidth190.7 GiB/s
195,276.8 MiB/s
204.763 GB/s
204,762.566 MB/s
0.186 TiB/s
0.205 TB/s
Bandwidth
Single 23.84 GiB/s
Double 47.68 GiB/s
Quad 95.37 GiB/s
Hexa 143.1 GiB/s
Octa 190.7 GiB/s

Expansions[edit]

[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
PCIeRevision: 4.0
Max Lanes: 128
Configuration: x16, x8


Features[edit]

[Edit/Modify Supported Features]

Cog-icon-grey.svg
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
Boost 2Precision Boost 2

References[edit]

Retrieved from "https://en.wikichip.org/w/index.php?title=amd/epyc/7642&oldid=98356"
Facts about "EPYC 7642 - AMD"
RDF feed
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
EPYC 7642 - AMD#pcie +
base frequency2,400 MHz (2.4 GHz, 2,400,000 kHz) +
clock multiplier24 +
core count48 +
core family23 +
core nameRome +
designerAMD +
die count7 +
familyEPYC +
first announcedAugust 7, 2019 +
first launchedAugust 7, 2019 +
full page nameamd/epyc/7642 +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
has amd amd-v technologytrue +
has amd amd-vi technologytrue +
has amd precision boost 2true +
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 +, SenseMI Technology + and Precision Boost 2 +
has locked clock multipliertrue +
has simultaneous multithreadingtrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
is multi-chip packagetrue +
isax86-64 +
isa familyx86 +
l1$ size3,072 KiB (3,145,728 B, 3 MiB) +
l1d$ description8-way set associative +
l1d$ size1,536 KiB (1,572,864 B, 1.5 MiB) +
l1i$ description8-way set associative +
l1i$ size1,536 KiB (1,572,864 B, 1.5 MiB) +
l2$ description8-way set associative +
l2$ size24 MiB (24,576 KiB, 25,165,824 B, 0.0234 GiB) +
l3$ size192 MiB (196,608 KiB, 201,326,592 B, 0.188 GiB) +
ldateAugust 7, 2019 +
manufacturerTSMC + and GlobalFoundries +
market segmentServer +
max cpu count2 +
max memory4,194,304 MiB (4,294,967,296 KiB, 4,398,046,511,104 B, 4,096 GiB, 4 TiB) +
max memory bandwidth190.7 GiB/s (195,276.8 MiB/s, 204.763 GB/s, 204,762.566 MB/s, 0.186 TiB/s, 0.205 TB/s) +
max memory channels8 +
microarchitectureZen 2 +
model number7642 +
nameEPYC 7642 +
packageSP3 + and FCLGA-4094 +
part number100-000000074 +
process7 nm (0.007 μm, 7.0e-6 mm) + and 14 nm (0.014 μm, 1.4e-5 mm) +
release price$ 4,775.00 (€ 4,297.50, £ 3,867.75, ¥ 493,400.75) +
series7002 +
smp max ways2 +
socketSP3 + and LGA-4094 +
supported memory typeDDR4-3200 +
tdp225 W (225,000 mW, 0.302 hp, 0.225 kW) +
technologyCMOS +
thread count96 +
turbo frequency3,400 MHz (3.4 GHz, 3,400,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +