Intel Core i7-640M vs Intel Core i7-920XM

Comparative analysis of Intel Core i7-640M and Intel Core i7-920XM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Core i7-640M

Intel Core i7-920XM

Differences

Reasons to consider the Intel Core i7-640M

CPU is newer: launch date 0 year(s) 11 month(s) later
Around 8% higher clock speed: 3.46 GHz vs 3.20 GHz
Around 5% higher maximum core temperature: 105°C vs 100°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
Around 57% lower typical power consumption: 35 Watt vs 55 Watt
Around 33% better performance in PassMark - Single thread mark: 1377 vs 1035
Around 6% better performance in PassMark - CPU mark: 2083 vs 1964
Around 9% better performance in Geekbench 4 - Single Core: 499 vs 458

Specifications (specs)
Launch date	20 September 2010 vs 23 September 2009
Maximum frequency	3.46 GHz vs 3.20 GHz
Maximum core temperature	105°C vs 100°C
Manufacturing process technology	32 nm vs 45 nm
Thermal Design Power (TDP)	35 Watt vs 55 Watt
Benchmarks
PassMark - Single thread mark	1377 vs 1035
PassMark - CPU mark	2083 vs 1964
Geekbench 4 - Single Core	499 vs 458

Reasons to consider the Intel Core i7-920XM

2 more cores, run more applications at once: 4 vs 2
4 more threads: 8 vs 4
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 33% better performance in Geekbench 4 - Multi-Core: 1383 vs 1036

Specifications (specs)
Number of cores	4 vs 2
Number of threads	8 vs 4
L1 cache	256 KB vs 64 KB (per core)
L2 cache	1024 KB vs 512 KB
L3 cache	8196 KB vs 4096 KB
Benchmarks
Geekbench 4 - Multi-Core	1383 vs 1036

Compare benchmarks

CPU 1: Intel Core i7-640M
CPU 2: Intel Core i7-920XM

PassMark - Single thread mark

CPU 1

CPU 2

1377

1035

PassMark - CPU mark

CPU 1

CPU 2

2083

1964

Geekbench 4 - Single Core

CPU 1

CPU 2

499

458

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1036

1383

Name	Intel Core i7-640M	Intel Core i7-920XM
PassMark - Single thread mark	1377	1035
PassMark - CPU mark	2083	1964
Geekbench 4 - Single Core	499	458
Geekbench 4 - Multi-Core	1036	1383
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.541
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	29.806
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.151
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.798
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	2.292

Compare specifications (specs)

	Intel Core i7-640M	Intel Core i7-920XM
Essentials
Architecture codename	Arrandale	Clarksfield
Launch date	20 September 2010	23 September 2009
Launch price (MSRP)	$346	$1,054
Place in performance rating	2922	2547
Price now	$199.95	$399.95
Processor Number	i7-640M	i7-920XM
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Value for money (0-100)	4.18	2.78
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	2.80 GHz	2.00 GHz
Bus Speed	2.5 GT/s DMI	2.5 GT/s DMI
Die size	81 mm2	296 mm2
Front-side bus (FSB)	2500 MHz	2500 MHz
L1 cache	64 KB (per core)	256 KB
L2 cache	512 KB	1024 KB
L3 cache	4096 KB	8196 KB
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	105°C	100°C
Maximum frequency	3.46 GHz	3.20 GHz
Number of cores	2	4
Number of threads	4	8
Transistor count	382 million	774 million
Memory
Max memory channels	2	2
Maximum memory bandwidth	17.1 GB/s	21 GB/s
Maximum memory size	8 GB	8 GB
Supported memory types	DDR3 800/1066	DDR3 1066/1333
Graphics
Graphics base frequency	500 MHz
Graphics max dynamic frequency	766 MHz
Graphics max frequency	766 MHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® Flexible Display Interface (Intel® FDI)
Processor graphics	Intel HD Graphics
Graphics interfaces
Number of displays supported	2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	rPGA 37.5mmx 37.5mm, BGA 34mmx28mm	37.5mm x 37.5mm
Sockets supported	BGA1288, PGA988	PGA988
Thermal Design Power (TDP)	35 Watt	55 Watt
Peripherals
Max number of PCIe lanes	16	16
PCI Express revision	2.0	2
PCIe configurations	1x16	1x16, 2x8
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	36-bit	36-bit
Thermal Monitoring
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)