Intel Server CPU v18.7.15-M

Intel Xeon Gold 6438M Processor

major
18
Sapphire Rapids (Xeon Scalable 4th gen)
minor
7
Xeon Gold
patch
15
Xeon Gold 6438M
suffix
M
Mobile (pre-2015 naming)

Metadata

PropertyValue
BrandXeon
Intel nameIntel Xeon Gold 6438M Processor
Processor number6438M
CodenameSapphire Rapids
GenerationSapphire Rapids (Xeon Scalable 4th gen)
MicroarchitectureGolden Cove
Performance classXeon Gold
SegmentServer
Released2023-Q12023
StatusLaunched
Cores32
Threads64
Base clock2.20 GHz
Max clock3.90 GHz
Cache60 MB
TDP205 W
Lithography (as published)Intel 7
Max memory4 TB
Memory channels8
PCIe revision5
PCIe lanes80
SocketFCLGA4677LGA4677
MemoryUp to DDR5 4800 MT/s 1DPC Up to DDR5 4400 MT/s 2DPCDDR5
Recommended price$3,273
Instruction sets
Features
SourceIntel ARK (via cpu-spec-dataset)

Uses (dependencies)

Used by (0)

Nothing depends on this version.

Other variants of 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 v18.7.14 (Xeon Gold 6434)

Features

  • +Speed Select
  • +In-Memory Analytics Accelerator

Specifications

  • ~Cores: 8 → 32
  • ~Threads: 16 → 64
  • ~Base clock: 3.70 GHz → 2.20 GHz
  • ~Max clock: 4.10 GHz → 3.90 GHz
  • ~Cache: 22.5 MB → 60 MB
  • ~TDP: 195 W → 205 W
  • ~Recommended price: $2,607 → $3,273

Since the previous minor (lower performance class): Intel Server CPU v18.6.1-X (Xeon w9-3495X)

Features

  • +SGX
  • +Speed Select
  • −Enhanced SpeedStep
  • −Turbo Boost 2.0
  • −Turbo Boost Max 3.0
  • −vPro
  • −Dynamic Load Balancer

Specifications

  • ~Cores: 56 → 32
  • ~Threads: 112 → 64
  • ~Base clock: 1.90 GHz → 2.20 GHz
  • ~Max clock: 4.80 GHz → 3.90 GHz
  • ~Cache: 105 MB Intel Smart Cache → 60 MB
  • +TDP: 205 W
  • ~PCIe revision: 5.0 → 5
  • ~PCIe lanes: 112 → 80
  • ~Recommended price: $5,889 → $3,273
  • −Performance cores: 56
  • −Efficient cores: 0
  • −Base power: 350 W
  • −Max turbo power: 420 W
  • −Max CPUs per system: 1
  • −Instruction set: 64-bit

Since the previous major (previous generation): Intel Server CPU v17.1.7-M (Xeon W-11955M)

Breaking changes

  • ~Socket changed from FCBGA1787 to FCLGA4677

Security

  • ✓Fixed: Downfall / Gather Data Sampling

Components

Instruction sets

  • +AMX

Features

  • +Execute Disable Bit
  • +TSX-NI
  • +SGX
  • +Speed Select
  • +Data Streaming Accelerator
  • +In-Memory Analytics Accelerator
  • −Secure Key (RDRAND)
  • −Turbo Boost Max 3.0
  • −Gaussian & Neural Accelerator
  • −Optane Memory support
  • −Quick Sync Video
  • −vPro
  • −Thunderbolt 4

Specifications

  • ~Codename: Tiger Lake → Sapphire Rapids
  • ~Microarchitecture: Cypress Cove / Willow Cove → Golden Cove
  • ~Cores: 8 → 32
  • ~Threads: 16 → 64
  • +Base clock: 2.20 GHz
  • ~Max clock: 5.00 GHz → 3.90 GHz
  • ~Cache: 24 MB Intel Smart Cache → 60 MB
  • +TDP: 205 W
  • ~Max memory: 128 GB → 4 TB
  • ~Memory channels: 2 → 8
  • +PCIe revision: 5
  • ~PCIe lanes: 20 → 80
  • +Recommended price: $3,273
  • −Bus: 8 GT/s
  • −Graphics: Intel UHD Graphics for 11th Gen Intel Processors
  • −Graphics max clock: 1.45 GHz
  • −Max CPUs per system: 1
  • −Instruction set: 64-bit

Raw source data

Show all 73 fields
FieldValue
CpuId232398
CpuNameIntel Xeon Gold 6438M Processor
AdvancedMatricExtensionsYes
AESTechYes
AVX512FusedMultiplyAddUnits2
BornOnDateQ1'23
Cache60 MB
CertifiedUseConditionsServer/Enterprise
ClockSpeed2.20 GHz
ClockSpeedMax3.90 GHz
CodeNameTextProducts formerly Sapphire Rapids
CoreCount32
DataStreamAccelerator1 default devices
DeepLearningBoostVersionYes
DeviceProtectionTechBootGuardVersionYes
DigitalThermalSensorTemperatureMax97 °C
ECCMemoryYes
EM64Yes
EmbeddedNo
ExecuteDisableYes
ExtendedPageTablesYes
HighPriorityCoreFreq2.30 GHz
HighPriorityCores12
HyperThreadingYes
InMemoryAnayticsAccelerator1 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 6438M(0) 32 2.2 205 6438M(1) 32 2.0 185 6438M(2) 28 1.9 165
IntelTotalMemoryEncryptionYes
IntelUPISpeed16 GT/s
LithographyIntel 7
LowPriorityCoreFreq1.80 GHz
LowPriorityCores20
MarketSegmentServer
MaxEncSizeSupportIntelSGX128 GB
MaxMem4 TB
MaxTDP205 W
MemoryTypesUp to DDR5 4800 MT/s 1DPC Up to DDR5 4400 MT/s 2DPC
ModeBasedExecutionControlVersionYes
NumMemoryChannels8
NumPCIExpressPorts80
OnDemandAvailableUpgradeActivation Model Products QAT DLB DSA IAA SGX512 SGX512 512
OnDemandFeatureActivationYes
OSGuardTechVersionYes
PackageCarrierE1B
PackageSize77.5mm x 56.5mm
PCIExpressRevision5
ProcessorNumber6438M
ProductGroup4th Generation Intel Xeon Scalable Processors
ResourceDirectorTechVersionYes
RunSureTechnologyVersionYes
ScalableSockets2S
ServicingStatusBaseline Servicing
SocketsSupportedFCLGA4677
SoftwareGuardExtensionsYes with Intel SPS
SpeedSelectCorePowerIndYes
SpeedSelectTurboFreqIndYes
SpeedShiftTechVersionYes
SstBaseFrequencyOptionVersionYes
SstPerformanceProfileVersionYes
StatusCodeTextLaunched
TBTVersion2.0
TCase85
ThreadCount64
TransactionalSynchronizationExtensionVersionYes
TXTYes
UltraPathInterconnectLinks3
VTDYes
VTXYes
SourceUrlhttps://ark.intel.com/content/www/us/en/ark/products/232398/intel-xeon-gold-6438m-processor-60m-cache-2-20-ghz.html