i5-2500K vs i3-8100B

Primary details

Comparing Core i3-8100B and Core i5-2500K processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1437	1691
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.33
Market segment	Laptop	Desktop processor
Series	no data	Core i5 (Desktop)
Architecture codename	no data	Sandy Bridge (2011−2013)
Release date	no data	3 January 2011 (13 years ago)
Launch price (MSRP)	no data	$216

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i3-8100B and Core i5-2500K 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	4 (Quad-Core)	4 (Quad-Core)
Threads	4	4
Base clock speed	3.6 GHz	3.3 GHz
Boost clock speed	no data	3.7 GHz
Bus rate	8 GT/s	5 GT/s
L1 cache	no data	64 KB (per core)
L2 cache	no data	1 MB
L3 cache	6 MB Intel® Smart Cache	6 MB
Chip lithography	14 nm	32 nm
Die size	no data	216 mm2
Maximum core temperature	100 °C	73 °C
Number of transistors	no data	995 Million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	-	+

Compatibility

Information on Core i3-8100B and Core i5-2500K 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	1
Socket	FCBGA1440	LGA1155
Power consumption (TDP)	65 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-8100B and Core i5-2500K. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
AES-NI	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	+
FDI	no data	+
Fast Memory Access	no data	+
Status	Discontinued	Discontinued

Security technologies

Core i3-8100B and Core i5-2500K technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	no data
MPX	+	-
Identity Protection	+	+
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-8100B and Core i5-2500K are enumerated here.

VT-d	+	-
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-8100B and Core i5-2500K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR3
Maximum memory size	64 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	no data	21 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel UHD Graphics 630	Intel HD Graphics 3000
Max video memory	64 GB	no data
Quick Sync Video	+	+
Clear Video	+	no data
Clear Video HD	+	+
Graphics max frequency	1.05 GHz	1.1 GHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Core i3-8100B and Core i5-2500K integrated GPUs.

Number of displays supported

3

2

Graphics image quality

Maximum display resolutions supported by Core i3-8100B and Core i5-2500K integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@30Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Core i3-8100B and Core i5-2500K integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i3-8100B and Core i5-2500K.

PCIe version	3.0	2.0
PCI Express lanes	16	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Pros & cons summary

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Performance score	3.91	2.66
Integrated graphics card	3.09	0.66
Chip lithography	14 nm	32 nm
Power consumption (TDP)	65 Watt	95 Watt

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Should you still have questions on choice between Core i3-8100B and Core i5-2500K, ask them in Comments section, and we shall answer.

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