Intel Mobile CPU v6.4.8-QM

Intel Core i7-840QM Processor

major
6
1st generation Core
minor
4
Core i7
patch
8
Core i7-840QM
suffix
QM
Mobile, quad core

Benchmarks

Total score 1,222 / 10,000, rank 1822 of 2125.

Every score is out of 10,000, relative to the best CPUs. The total also counts the recommended price ($570, Intel ARK recommended customer price (2018)); see how scores work.

CategoryScoreMeasured
Single-thread1,943
1,174 points
Multi-thread116
2,038 points
3D renderingestimated71
Gamingestimated1,636

Sources: PassMark (Intel Core i7-840QM @ 1.87GHz, 256 samples)

Metadata

PropertyValue
BrandCore
Intel nameIntel Core i7-840QM Processor
Processor numberi7-840QM
CodenameClarksfield
Generation1st generation Core
MicroarchitectureNehalem / Westmere
Performance classCore i7
SegmentMobile
Released2010-Q32010
StatusDiscontinued
Cores4
Threads8
Base clock1.86 GHz
Max clock3.20 GHz
Cache8 MB Intel Smart Cache
Bus2.5 GT/s
TDP45 W
Lithography (as published)45 nm
Max memory8 GB
Memory channels2
PCIe revision2
PCIe lanes16
Max CPUs per system1
Transistors774 million
Die size296 mm2
Instruction set64-bit
SocketPGA988
MemoryDDR3 1066/1333DDR3
Recommended price$570
Instruction sets
Features
SourceIntel ARK (via cpu-spec-dataset)

Uses (dependencies)

Used by (0)

Nothing depends on this version.

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.

Matched by codename; individual steppings may differ.

Changelog

Since the previous patch: Intel Mobile CPU v6.4.7-QM (Core i7-820QM)

Performance

  • ~Total score 1251 → 1222 (-2%)
  • ~Single-thread 1748 → 1943 (+11%)
  • ~Multi-thread 106 → 116 (+9%)
  • ~3D rendering 64 → 71 (+11%)
  • ~Gaming 1477 → 1636 (+11%)

Specifications

  • ~Base clock: 1.73 GHz → 1.86 GHz
  • ~Max clock: 3.06 GHz → 3.20 GHz
  • +Recommended price: $570

Since the previous minor (lower performance class): Intel Mobile CPU v6.3.8-M (Core i5-580M)

Breaking changes

  • ~Socket changed from BGA1288. PGA988 to PGA988

Performance

  • ~Total score 1479 → 1222 (-17%)
  • ~Single-thread 2189 → 1943 (-11%)
  • ~Multi-thread 114 → 116 (+2%)
  • ~3D rendering 69 → 71 (+3%)
  • ~Gaming 1765 → 1636 (-7%)

Components

Features

  • −AES-NI

Specifications

  • ~Codename: Arrandale → Clarksfield
  • ~Cores: 2 → 4
  • ~Threads: 4 → 8
  • ~Base clock: 2.66 GHz → 1.86 GHz
  • ~Max clock: 3.33 GHz → 3.20 GHz
  • ~Cache: 3 MB Intel Smart Cache → 8 MB Intel Smart Cache
  • ~TDP: 35 W → 45 W
  • ~PCIe revision: 2.0 → 2
  • ~Transistors: 382 million → 774 million
  • ~Die size: 81 mm2 → 296 mm2
  • +Recommended price: $570
  • −Graphics: Intel HD Graphics for Previous Generation Intel Processors
  • −Graphics max clock: 766 MHz

Since the previous major (previous generation): Intel Mobile CPU v5.4.0 (Core2 Quad Q9000)

Breaking changes

  • ~Socket changed from PGA478 to PGA988

Security

  • !Introduced: Foreshadow / L1 Terminal Fault
  • !Introduced: Microarchitectural Data Sampling (ZombieLoad, RIDL, Fallout)

Performance

  • ~Total score 969 → 1222 (+26%)
  • ~Single-thread 1441 → 1943 (+35%)
  • ~Multi-thread 91 → 116 (+27%)
  • ~3D rendering 54 → 71 (+31%)
  • ~Gaming 1234 → 1636 (+33%)

Components

Instruction sets

  • +SSE4.2

Features

  • +Hyper-Threading
  • +VT-d
  • +EPT
  • +Physical Address Extension
  • +vPro

Specifications

  • ~Codename: Penryn → Clarksfield
  • ~Microarchitecture: Penryn → Nehalem / Westmere
  • +Threads: 8
  • ~Base clock: 2.00 GHz → 1.86 GHz
  • +Max clock: 3.20 GHz
  • ~Cache: 6 MB L2 Cache → 8 MB Intel Smart Cache
  • ~Bus: 1066 MHz → 2.5 GT/s
  • +Max memory: 8 GB
  • +Memory channels: 2
  • +PCIe revision: 2
  • +PCIe lanes: 16
  • +Max CPUs per system: 1
  • ~Transistors: 410 million → 774 million
  • ~Die size: 107 mm2 → 296 mm2
  • ~Recommended price: $348 → $570

Raw source data

Show all 49 fields
FieldValue
CpuId43125
CpuNameIntel Core i7-840QM Processor
AESTechNo
BornOnDateQ3'10
Bus2.5 GT/s
Cache8 MB Intel Smart Cache
ClockSpeed1.86 GHz
ClockSpeedMax3.20 GHz
CodeNameTextProducts formerly Clarksfield
CoreCount4
DieSize296 mm2
ECCMemoryNo
EM64Yes
EmbeddedNo
ExecuteDisableYes
ExtendedPageTablesYes
HaltStateYes
HyperThreadingYes
InstructionSet64-bit
InstructionSetExtensionsIntel SSE4.2
Lithography45 nm
MarketSegmentMobile
MaxCPUs1
MaxMem8 GB
MaxMemoryBandwidth21 GB/s
MaxTDP45 W
MemoryTypesDDR3 1066/1333
NumMemoryChannels2
NumPCIExpressPorts16
PackageSize37.5mm x 37.5mm
PCIExpressConfigs1x16. 2x8
PCIExpressRevision2
PhysicalAddressExtension36-bit
ProcessorNumberi7-840QM
ProductGroupLegacy Intel Core Processors
ServicingStatusEnd of Servicing Updates
SocketsSupportedPGA988
SpeedstepTechnologyYes
StatusCodeTextDiscontinued
TBTVersion1.0
ThermalJunctionRateCode100°C
ThermalMonitoring2IndicatorYes
ThreadCount8
TransistorCount774 million
TXTYes
VProTechnologyOptionsIntel vPro Platform
VTDYes
VTXYes
SourceUrlhttps://ark.intel.com/content/www/us/en/ark/products/43125/intel-core-i7840qm-processor-8m-cache-1-86-ghz.html