Intel Core i7-840QM processor review

Core i7-840QM processor released by Intel; release date: 1 June 2010. At the time of release, the processor cost $568. The processor is designed for mobile-computers and based on Clarksfield microarchitecture.

CPU is locked to prevent overclocking. Total number of cores - 4, threads - 8. Maximum CPU clock speed - 3.20 GHz. Maximum operating temperature - 100°C. Manufacturing process technology - 45 nm. Cache size: L1 - 256 KB, L2 - 1 MB, L3 - 8 MB.

Supported memory types: DDR3 1066/1333. Maximum memory size: 8 GB.

Supported socket types: PGA988. Maximum number of processors in a configuration - 1. Power consumption (TDP): 45 Watt.

Benchmarks

PassMark
Single thread mark

Top 1 CPU

This CPU

4870

1138

PassMark
CPU mark

Top 1 CPU

This CPU

156834

1952

Geekbench 4
Single Core

Top 1 CPU

This CPU

5311

398

Geekbench 4
Multi-Core

Top 1 CPU

This CPU

36691

1289

Name	Value
PassMark - Single thread mark	1138
PassMark - CPU mark	1952
Geekbench 4 - Single Core	398
Geekbench 4 - Multi-Core	1289

Specifications (specs)

Essentials
Architecture codename	Clarksfield
Launch date	1 June 2010
Launch price (MSRP)	$568
Place in performance rating	2502
Price now	$289.97
Processor Number	i7-840QM
Series	Legacy Intel® Core™ Processors
Status	Discontinued
Value for money (0-100)	3.46
Vertical segment	Mobile
Performance
64 bit support
Base frequency	1.86 GHz
Bus Speed	2.5 GT/s DMI
Die size	296 mm2
Front-side bus (FSB)	2500 MHz
L1 cache	256 KB
L2 cache	1 MB
L3 cache	8 MB
Manufacturing process technology	45 nm
Maximum core temperature	100°C
Maximum frequency	3.20 GHz
Number of cores	4
Number of threads	8
Transistor count	774 million

Memory
Max memory channels	2
Maximum memory bandwidth	21 GB/s
Maximum memory size	8 GB
Supported memory types	DDR3 1066/1333
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1
Package Size	37.5mm x 37.5mm
Sockets supported	PGA988
Thermal Design Power (TDP)	45 Watt
Peripherals
Max number of PCIe lanes	16
PCI Express revision	2
PCIe configurations	1x16, 2x8
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	36-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)