Mobile Sempron SI-40 vs i7-640UM

Primary details

Comparing Core i7-640UM and Mobile Sempron SI-40 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2615	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	AMD Mobile Sempron
Architecture codename	Arrandale (2010−2011)	Sable (2008−2009)
Release date	7 January 2010 (14 years ago)	4 July 2008 (16 years ago)
Launch price (MSRP)	$305	no data

Detailed specifications

Core i7-640UM and Mobile Sempron SI-40 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	1 (Single-Core)
Threads	4	1
Base clock speed	1.2 GHz	no data
Boost clock speed	2.27 GHz	2 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	1800 MHz
Multiplier	9	no data
L1 cache	128 KB	no data
L2 cache	512 KB	512 KB
L3 cache	4 MB (shared)	no data
Chip lithography	32 nm	65 nm
Die size	81+114 mm2	no data
Maximum core temperature	105 °C	100 °C
Number of transistors	382+177 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-640UM and Mobile Sempron SI-40 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	no data
Socket	BGA1288	S1g2
Power consumption (TDP)	18 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-640UM and Mobile Sempron SI-40. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	65 nm, 1.075 - 1.125V
AES-NI	+	-
FMA	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	+	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
PAE	36 Bit	no data
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	no data

Security technologies

Core i7-640UM and Mobile Sempron SI-40 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-640UM and Mobile Sempron SI-40 are enumerated here.

VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-640UM and Mobile Sempron SI-40. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800	no data
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	12.799 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	no data
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	500 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i7-640UM and Mobile Sempron SI-40 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Core i7-640UM and Mobile Sempron SI-40.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	7 January 2010	4 July 2008
Physical cores	2	1
Threads	4	1
Chip lithography	32 nm	65 nm
Power consumption (TDP)	18 Watt	25 Watt

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Should you still have questions on choice between Core i7-640UM and Mobile Sempron SI-40, ask them in Comments section, and we shall answer.

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