i5-2580M vs Pentium B940

Primary details

Comparing Pentium B940 and Core i5-2580M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2833	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Pentium	Intel Core i5
Power efficiency	1.46	no data
Architecture codename	Sandy Bridge (2011−2013)	Sandy Bridge (2011−2013)
Release date	13 June 2011 (13 years ago)	no data (2024 years ago)
Launch price (MSRP)	$134	no data

Detailed specifications

Pentium B940 and Core i5-2580M 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)	2 (Dual-core)
Threads	2	4
Base clock speed	2 GHz	no data
Boost clock speed	2 GHz	2.8 GHz
Bus type	DMI 2.0	DMI 2.0
Bus rate	4 × 5 GT/s	4 × 5 GT/s
Multiplier	20	28
L1 cache	128 KB	128 KB
L2 cache	512 KB	512 KB
L3 cache	2 MB (shared)	3 MB
Chip lithography	32 nm	32 nm
Die size	131 mm2	149 mm2
Maximum core temperature	85 °C	no data
Number of transistors	504 million	624 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium B940 and Core i5-2580M 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)	1 (Uniprocessor)
Socket	PGA988	no data
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium B940 and Core i5-2580M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	-	+
FMA	+	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Pentium B940 and Core i5-2580M technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium B940 and Core i5-2580M are enumerated here.

VT-d	-	+
VT-x	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium B940 and Core i5-2580M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-1333
Maximum memory size	16 GB	16 GB
Max memory channels	2	2
Maximum memory bandwidth	21.335 GB/s	21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel HD Graphics 3000
Graphics max frequency	1.1 GHz	no data

Graphics interfaces

Available interfaces and connections of Pentium B940 and Core i5-2580M integrated GPUs.

Number of displays supported	2	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Peripherals

Specifications and connection of peripherals supported by Pentium B940 and Core i5-2580M.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Threads

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