Intel Core i7-840QM vs Intel Core 2 Duo T5500

Comparative analysis of Intel Core i7-840QM and Intel Core 2 Duo T5500 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Core i7-840QM

Intel Core 2 Duo T5500

Differences

Reasons to consider the Intel Core i7-840QM

CPU is newer: launch date 3 year(s) 4 month(s) later
2 more cores, run more applications at once: 4 vs 2
6 more threads: 8 vs 2
Around 93% higher clock speed: 3.20 GHz vs 1.66 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
4x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 86% better performance in PassMark - Single thread mark: 1132 vs 608
3.5x better performance in PassMark - CPU mark: 1945 vs 548

Specifications (specs)
Launch date	1 June 2010 vs 1 February 2007
Number of cores	4 vs 2
Number of threads	8 vs 2
Maximum frequency	3.20 GHz vs 1.66 GHz
Manufacturing process technology	45 nm vs 65 nm
L1 cache	256 KB vs 64 KB
Benchmarks
PassMark - Single thread mark	1132 vs 608
PassMark - CPU mark	1945 vs 548

Reasons to consider the Intel Core 2 Duo T5500

2x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 32% lower typical power consumption: 34 Watt vs 45 Watt
2.5x better performance in Geekbench 4 - Single Core: 976 vs 398
Around 19% better performance in Geekbench 4 - Multi-Core: 1533 vs 1289

Specifications (specs)
L2 cache	2048 KB vs 1 MB
Thermal Design Power (TDP)	34 Watt vs 45 Watt
Benchmarks
Geekbench 4 - Single Core	976 vs 398
Geekbench 4 - Multi-Core	1533 vs 1289

Compare benchmarks

CPU 1: Intel Core i7-840QM
CPU 2: Intel Core 2 Duo T5500

PassMark - Single thread mark

CPU 1

CPU 2

1132

608

PassMark - CPU mark

CPU 1

CPU 2

1945

548

Geekbench 4 - Single Core

CPU 1

CPU 2

398

976

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1289

1533

Name	Intel Core i7-840QM	Intel Core 2 Duo T5500
PassMark - Single thread mark	1132	608
PassMark - CPU mark	1945	548
Geekbench 4 - Single Core	398	976
Geekbench 4 - Multi-Core	1289	1533

Compare specifications (specs)

	Intel Core i7-840QM	Intel Core 2 Duo T5500
Essentials
Architecture codename	Clarksfield	Merom
Launch date	1 June 2010	1 February 2007
Launch price (MSRP)	$568
Place in performance rating	2494	2500
Price now	$289.97
Processor Number	i7-840QM	T5500
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	3.46
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	1.86 GHz	1.66 GHz
Bus Speed	2.5 GT/s DMI	667 MHz FSB
Die size	296 mm2	143 mm2
Front-side bus (FSB)	2500 MHz	667 MHz
L1 cache	256 KB	64 KB
L2 cache	1 MB	2048 KB
L3 cache	8 MB
Manufacturing process technology	45 nm	65 nm
Maximum core temperature	100°C	100°C
Maximum frequency	3.20 GHz	1.66 GHz
Number of cores	4	2
Number of threads	8	2
Transistor count	774 million	291 million
VID voltage range		1.0375V-1.300V
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	1
Package Size	37.5mm x 37.5mm	35mm x 35mm
Sockets supported	PGA988	PPGA478, PBGA479
Thermal Design Power (TDP)	45 Watt	34 Watt
Scenario Design Power (SDP)		0 W
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
FSB parity
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)