Intel Core i7-680UM vs Intel Core i7-940XM

Comparative analysis of Intel Core i7-680UM and Intel Core i7-940XM 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.

Intel Core i7-680UM

Intel Core i7-940XM

Differences

Reasons to consider the Intel Core i7-680UM

CPU is newer: launch date 3 month(s) later
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
3.1x lower typical power consumption: 18 Watt vs 55 Watt

Launch date	26 September 2010 vs 1 June 2010
Maximum core temperature	105°C vs 100°C
Manufacturing process technology	32 nm vs 45 nm
Thermal Design Power (TDP)	18 Watt vs 55 Watt

Reasons to consider the Intel Core i7-940XM

2 more cores, run more applications at once: 4 vs 2
4 more threads: 8 vs 4
Around 32% higher clock speed: 3.33 GHz vs 2.53 GHz
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 23% better performance in PassMark - Single thread mark: 1122 vs 911
Around 83% better performance in PassMark - CPU mark: 2187 vs 1196

Specifications (specs)
Number of cores	4 vs 2
Number of threads	8 vs 4
Maximum frequency	3.33 GHz vs 2.53 GHz
L2 cache	1024 KB vs 512 KB
L3 cache	8196 KB vs 4 MB
Benchmarks
PassMark - Single thread mark	1122 vs 911
PassMark - CPU mark	2187 vs 1196

Compare benchmarks

CPU 1: Intel Core i7-680UM
CPU 2: Intel Core i7-940XM

PassMark - Single thread mark

CPU 1

CPU 2

911

1122

PassMark - CPU mark

CPU 1

CPU 2

1196

2187

Name	Intel Core i7-680UM	Intel Core i7-940XM
PassMark - Single thread mark	911	1122
PassMark - CPU mark	1196	2187
Geekbench 4 - Single Core		516
Geekbench 4 - Multi-Core		1709

Compare specifications (specs)

	Intel Core i7-680UM	Intel Core i7-940XM
Essentials
Architecture codename	Arrandale	Clarksfield
Launch date	26 September 2010	1 June 2010
Launch price (MSRP)	$317	$1,096
Place in performance rating	2405	2406
Processor Number	i7-680UM	i7-940XM
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	1.46 GHz	2.13 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
L2 cache	512 KB	1024 KB
L3 cache	4 MB	8196 KB
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	105°C	100°C
Maximum frequency	2.53 GHz	3.33 GHz
Number of cores	2	4
Number of threads	4	8
Transistor count	382 million	774 million
L1 cache		256 KB
Memory
Max memory channels	2	2
Maximum memory bandwidth	12.8 GB/s	21 GB/s
Maximum memory size	8 GB	8 GB
Supported memory types	DDR3 800	DDR3 1066/1333
Graphics
Graphics base frequency	166 MHz
Graphics max dynamic frequency	500 MHz
Graphics max frequency	500 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	BGA 34mm x 28mm	37.5mm x 37.5mm
Sockets supported	BGA1288	PGA988
Thermal Design Power (TDP)	18 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)