Intel Server CPU v18.8.1-H

Intel Xeon Platinum 8450H Processor

major
18
Sapphire Rapids (Xeon Scalable 4th gen)
minor
8
Xeon Platinum
patch
1
Xeon Platinum 8450H
suffix
H
High-performance mobile (45 W class)

Metadata

PropertyValue
BrandXeon
Intel nameIntel Xeon Platinum 8450H Processor
Processor number8450H
CodenameSapphire Rapids
GenerationSapphire Rapids (Xeon Scalable 4th gen)
MicroarchitectureGolden Cove
Performance classXeon Platinum
SegmentServer
Released2023-Q12023
StatusLaunched
Cores28
Threads56
Base clock2.00 GHz
Max clock3.50 GHz
Cache75 MB
TDP250 W
Lithography (as published)Intel 7
Max memory4 TB
Memory channels8
PCIe revision5.0
PCIe lanes80
SocketFCLGA4677LGA4677
MemoryUp to DDR5 4800 MT/s 1DPC Up to DDR5 4400 MT/s 2DPCDDR5
Recommended price$4,708
Instruction sets
Features
SourceIntel ARK (via cpu-spec-dataset)

Uses (dependencies)

Used by (0)

Nothing depends on this version.

Known vulnerabilities and defects

  • Spectre variant 1 (bounds check bypass) (CVE-2017-5753): Mistrained conditional branches speculatively read out-of-bounds data. Mitigated in software only; every speculative out-of-order core is affected.
  • Reptar (CVE-2023-23583): Redundant instruction prefixes put the front end into an undefined state, allowing privilege escalation or denial of service.

Matched by codename; individual steppings may differ.

Changelog

Since the previous patch: Intel Server CPU v18.8.0-H (Xeon Platinum 8444H)

Features

  • +Speed Select

Specifications

  • ~Cores: 16 → 28
  • ~Threads: 32 → 56
  • ~Base clock: 2.90 GHz → 2.00 GHz
  • ~Max clock: 4.00 GHz → 3.50 GHz
  • ~Cache: 45 MB → 75 MB
  • ~TDP: 270 W → 250 W
  • ~Recommended price: $4,234 → $4,708

Since the previous minor (lower performance class): Intel Server CPU v18.7.1-plus (Xeon Gold 5415+)

Features

  • +Speed Select
  • −Dynamic Load Balancer

Specifications

  • ~Cores: 8 → 28
  • ~Threads: 16 → 56
  • ~Base clock: 2.90 GHz → 2.00 GHz
  • ~Max clock: 4.10 GHz → 3.50 GHz
  • ~Cache: 22.5 MB → 75 MB
  • ~TDP: 150 W → 250 W
  • ~PCIe revision: 5 → 5.0
  • ~Recommended price: $1,066 → $4,708

Since the previous major (previous generation): Intel Server CPU v17.1.1 (Xeon W-1370)

Breaking changes

  • ~Socket changed from FCLGA1200 to FCLGA4677
  • ~Memory changed from DDR4 to DDR5

Security

  • ✓Fixed: Downfall / Gather Data Sampling

Components

Instruction sets

  • +AMX

Features

  • +Speed Shift
  • +TSX-NI
  • +SGX
  • +CET
  • +Total Memory Encryption
  • +Mode-based Execute Control
  • +Speed Select
  • +Data Streaming Accelerator
  • +In-Memory Analytics Accelerator
  • −Secure Key (RDRAND)
  • −Enhanced SpeedStep
  • −Turbo Boost 2.0
  • −Turbo Boost Max 3.0
  • −Identity Protection Technology
  • −Gaussian & Neural Accelerator
  • −Optane Memory support
  • −Quick Sync Video
  • −vPro

Specifications

  • ~Codename: Rocket Lake → Sapphire Rapids
  • ~Microarchitecture: Cypress Cove / Willow Cove → Golden Cove
  • ~Cores: 8 → 28
  • ~Threads: 16 → 56
  • ~Base clock: 2.90 GHz → 2.00 GHz
  • ~Max clock: 5.10 GHz → 3.50 GHz
  • ~Cache: 16 MB Intel Smart Cache → 75 MB
  • ~TDP: 80 W → 250 W
  • ~Max memory: 128 GB → 4 TB
  • ~Memory channels: 2 → 8
  • ~PCIe revision: 4.0 → 5.0
  • ~PCIe lanes: 20 → 80
  • ~Recommended price: $362 → $4,708
  • −Bus: 8 GT/s
  • −Graphics: Intel UHD Graphics P750
  • −Graphics max clock: 1.30 GHz
  • −Max CPUs per system: 1
  • −Instruction set: 64-bit

Raw source data

Show all 70 fields
FieldValue
CpuId231756
CpuNameIntel Xeon Platinum 8450H Processor
AdvancedMatricExtensionsYes
AESTechYes
AVX512FusedMultiplyAddUnits2
BornOnDateQ1'23
Cache75 MB
CertifiedUseConditionsServer/Enterprise
ClockSpeed2.00 GHz
ClockSpeedMax3.50 GHz
CodeNameTextProducts formerly Sapphire Rapids
CoreCount28
DataStreamAccelerator4 default devices
DeepLearningBoostVersionYes
DeviceProtectionTechBootGuardVersionYes
DigitalThermalSensorTemperatureMax93 °C
ECCMemoryYes
EM64Yes
ExecuteDisableYes
ExtendedPageTablesYes
HighPriorityCoreFreq2.10 GHz
HighPriorityCores8
HyperThreadingYes
InMemoryAnayticsAccelerator4 default devices
InstructionSetExtensionsIntel AMX. Intel SSE4.2. Intel AVX. Intel AVX2. Intel AVX-512
IntelControlFlowEnforcementTechnologyYes
IntelCryptoAccelerationYes
IntelPlatformFWResSupportYes
IntelQAssistSWAccelYes
IntelSpeedSelectTechConfig Active Cores Base Frequency TDP Description 8450H(0) 28 2.0 GHz 250 W 8450H(1) 24 1.9 GHz 225 W 8450H(2) 20 1.9 GHz 205 W
IntelTotalMemoryEncryptionYes
IntelUPISpeed16 GT/s
LithographyIntel 7
LowPriorityCoreFreq1.70 GHz
LowPriorityCores20
MarketSegmentServer
MaxEncSizeSupportIntelSGX512 GB
MaxMem4 TB
MaxTDP250 W
MemoryTypesUp to DDR5 4800 MT/s 1DPC Up to DDR5 4400 MT/s 2DPC
ModeBasedExecutionControlVersionYes
NumMemoryChannels8
NumPCIExpressPorts80
OSGuardTechVersionYes
PackageCarrierE1A
PackageSize77.5mm x 56.5mm
PCIExpressRevision5.0
ProcessorNumber8450H
ProductGroup4th Generation Intel Xeon Scalable Processors
ResourceDirectorTechVersionYes
RunSureTechnologyVersionYes
ScalableSocketsS8S
ServicingStatusBaseline Servicing
SocketsSupportedFCLGA4677
SoftwareGuardExtensionsYes with Intel SPS
SpeedSelectCorePowerIndYes
SpeedSelectTurboFreqIndYes
SpeedShiftTechVersionYes
SstBaseFrequencyOptionVersionYes
SstPerformanceProfileVersionYes
StatusCodeTextLaunched
TBTVersion2.0
TCase76°C
ThreadCount56
TransactionalSynchronizationExtensionVersionYes
TXTYes
UltraPathInterconnectLinks4
VTDYes
VTXYes
SourceUrlhttps://ark.intel.com/content/www/us/en/ark/products/231756/intel-xeon-platinum-8450h-processor-75m-cache-2-00-ghz.html