Intel Mobile CPU v13.4.14-B
Intel Core i5-8400B Processor
Metadata
| Property | Value |
|---|---|
| Brand | Core |
| Intel name | Intel Core i5-8400B Processor |
| Processor number | i5-8400B |
| Codename | Coffee Lake |
| Generation | 8th generation Core |
| Microarchitecture | Kaby Lake R / Coffee Lake / Whiskey Lake / Amber Lake |
| Performance class | Core i5 |
| Segment | Mobile |
| Released | 2018-Q22018 |
| Status | Discontinued |
| Cores | 6 |
| Threads | 6 |
| Base clock | 2.80 GHz |
| Max clock | 4.00 GHz |
| Cache | 9 MB Intel Smart Cache |
| Bus | 8 GT/s |
| TDP | 65 W |
| Lithography (as published) | 14 nm |
| Max memory | 64 GB |
| Memory channels | 2 |
| PCIe revision | 3.0 |
| PCIe lanes | 16 |
| Graphics | Intel UHD Graphics 630 |
| Graphics max clock | 1.05 GHz |
| Max CPUs per system | 1 |
| Instruction set | 64-bit |
| Socket | FCBGA1440BGA1440 |
| Memory | DDR4-2666DDR4 |
| Instruction sets | |
| Features | |
| Source | Intel ARK (via cpu-spec-dataset) |
Uses (dependencies)
- lithography: Intel Lithography
v16.2.0(14 nm++) - simd: Intel SIMD
v0.0.1(MMX) - simd: Intel SIMD
v1.4.1(SSE4.2) - simd: Intel SIMD
v2.1.0(AVX2)
Used by (0)
Nothing depends on this version.
Other variants of this version
- Intel Mobile CPU
v13.4.14-H(Core i5-8400H)
Known vulnerabilities and defects
- Meltdown (CVE-2017-5754): Rogue data cache load: user code can read kernel memory through speculative execution.
- 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.
- Foreshadow / L1 Terminal Fault (CVE-2018-3615, CVE-2018-3620, CVE-2018-3646): Speculative reads from the L1 data cache through non-present page table entries, breaking SGX, OS and VMM isolation.
- Microarchitectural Data Sampling (ZombieLoad, RIDL, Fallout) (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091): Data in store buffers, fill buffers and load ports leaks across privilege boundaries.
- TSX Asynchronous Abort (ZombieLoad v2) (CVE-2019-11135): Aborted TSX transactions leak data from microarchitectural buffers, including on parts that fixed MDS.
- Special Register Buffer Data Sampling (CrossTalk) (CVE-2020-0543): RDRAND/RDSEED results leak across cores through a shared staging buffer.
- Retbleed (CVE-2022-29901): Return instructions are hijacked through the branch target buffer on cores without enhanced IBRS.
- Downfall / Gather Data Sampling (CVE-2022-40982): The AVX gather instruction leaks stale data from internal vector registers.
Matched by codename; individual steppings may differ.
Changelog
Since the previous patch: Intel Mobile CPU v13.4.13-U (Core i5-8365U)
Breaking changes
- ~Socket changed from FCBGA1528 to FCBGA1440
- −Removed TSX-NI
Security
- !Introduced: Meltdown
- !Introduced: Foreshadow / L1 Terminal Fault
Features
- +Turbo Boost 2.0
- −Hyper-Threading
- −Speed Shift
- −TSX-NI
- −Trusted Execution Technology
- −vPro
Specifications
- ~Codename: Whiskey Lake → Coffee Lake
- ~Cores: 4 → 6
- ~Threads: 8 → 6
- ~Base clock: 1.60 GHz → 2.80 GHz
- ~Max clock: 4.10 GHz → 4.00 GHz
- ~Cache: 6 MB Intel Smart Cache → 9 MB Intel Smart Cache
- ~Bus: 4 GT/s → 8 GT/s
- ~TDP: 15 W → 65 W
- ~Graphics: Intel UHD Graphics for 8th Generation Intel Processors → Intel UHD Graphics 630
- ~Graphics max clock: 1.10 GHz → 1.05 GHz
Since the previous minor (lower performance class): Intel Mobile CPU v13.3.4-U (Core i3-8145U)
Breaking changes
- ~Socket changed from FCBGA1528 to FCBGA1440
Security
- !Introduced: Meltdown
- !Introduced: Foreshadow / L1 Terminal Fault
Features
- +MPX
- −Hyper-Threading
- −Speed Shift
Specifications
- ~Codename: Whiskey Lake → Coffee Lake
- ~Cores: 2 → 6
- ~Threads: 4 → 6
- ~Base clock: 2.10 GHz → 2.80 GHz
- ~Max clock: 3.90 GHz → 4.00 GHz
- ~Cache: 4 MB Intel Smart Cache → 9 MB Intel Smart Cache
- ~Bus: 4 GT/s → 8 GT/s
- ~TDP: 15 W → 65 W
- ~Graphics: Intel UHD Graphics for 8th Generation Intel Processors → Intel UHD Graphics 630
- ~Graphics max clock: 1.00 GHz → 1.05 GHz
Since the previous major (previous generation): Intel Mobile CPU v12.4.8-HQ (Core i5-7440HQ)
Breaking changes
- −Removed TSX-NI
Security
- !Introduced: TSX Asynchronous Abort (ZombieLoad v2)
Features
- +Optane Memory support
- −Speed Shift
- −TSX-NI
- −Trusted Execution Technology
- −vPro
Specifications
- ~Codename: Kaby Lake → Coffee Lake
- ~Microarchitecture: Kaby Lake → Kaby Lake R / Coffee Lake / Whiskey Lake / Amber Lake
- ~Cores: 4 → 6
- ~Threads: 4 → 6
- ~Max clock: 3.80 GHz → 4.00 GHz
- ~Cache: 6 MB → 9 MB Intel Smart Cache
- ~TDP: 45 W → 65 W
- ~Graphics: Intel HD Graphics 630 → Intel UHD Graphics 630
- ~Graphics max clock: 1.00 GHz → 1.05 GHz
Raw source data
Show all 69 fields
| Field | Value |
|---|---|
| CpuId | 134888 |
| CpuName | Intel Core i5-8400B Processor |
| AESTech | Yes |
| BornOnDate | Q2'18 |
| Bus | 8 GT/s |
| Cache | 9 MB Intel Smart Cache |
| ClearVideoTechnology | Yes |
| ClockSpeed | 2.80 GHz |
| ClockSpeedMax | 4.00 GHz |
| CodeNameText | Products formerly Coffee Lake |
| CoreCount | 6 |
| CVTHD | Yes |
| DeviceProtectionTechBootGuardVersion | No |
| ECCMemory | No |
| EM64 | Yes |
| Embedded | No |
| ExecuteDisable | Yes |
| ExtendedPageTables | Yes |
| Graphics4KSupportLevel | Yes. at 60Hz |
| GraphicsDeviceId | 0x3E9B |
| GraphicsDirectXSupport | 12 |
| GraphicsFreq | 350 MHz |
| GraphicsMaxFreq | 1.05 GHz |
| GraphicsMaxMem | 64 GB |
| GraphicsMaxResolutionDP | 4096x2304@60Hz |
| GraphicsMaxResolutionHDMI | 4096x2304@30Hz |
| GraphicsMaxResolutionIFP | 4096x2304@60Hz |
| GraphicsOpenGLSupport | 4.5 |
| HaltState | Yes |
| HyperThreading | No |
| IdentityProtectionTechVersion | Yes |
| InstructionSet | 64-bit |
| InstructionSetExtensions | Intel SSE4.1. Intel SSE4.2. Intel AVX2 |
| InTru3D | Yes |
| Lithography | 14 nm |
| MarketSegment | Mobile |
| MaxCPUs | 1 |
| MaxMem | 64 GB |
| MaxTDP | 65 W |
| MemoryProtectionExtensionsVersion | Yes |
| MemoryTypes | DDR4-2666 |
| NumDisplaysSupported | 3 |
| NumMemoryChannels | 2 |
| NumPCIExpressPorts | 16 |
| OptaneMemorySupport | Yes |
| OSGuardTechVersion | Yes |
| PackageSize | 42mm x 28mm |
| PCIExpressConfigs | Up to 1x16. 2x8. 1x8+2x4 |
| PCIExpressRevision | 3.0 |
| ProcessorGraphicsModelId | Intel UHD Graphics 630 |
| ProcessorNumber | i5-8400B |
| ProductGroup | 8th Generation Intel Core i5 Processors |
| QuickSyncVideo | Yes |
| SecureKeyTechVersion | Yes |
| SocketsSupported | FCBGA1440 |
| SoftwareGuardExtensions | Yes with Intel ME |
| SpeedstepTechnology | Yes |
| StableImagePlatformProgramVersion | No |
| StatusCodeText | Discontinued |
| TBTVersion | 2.0 |
| ThermalJunctionRateCode | 100°C |
| ThermalMonitoring2Indicator | Yes |
| ThreadCount | 6 |
| TransactionalSynchronizationExtensionVersion | No |
| TurboBoostTech2MaxFreq | 4.00 GHz |
| TXT | No |
| VTD | Yes |
| VTX | Yes |
| SourceUrl | https://ark.intel.com/content/www/us/en/ark/products/134888/intel-core-i58400b-processor-9m-cache-up-to-4-00-ghz.html |