Atom C3858 vs Core i5-2500

Primary details

Comparing Core i5-2500 and Atom C3858 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1621	1544
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.66	0.43
Market segment	Desktop processor	Server
Series	no data	Intel Atom
Architecture codename	Sandy Bridge (2011−2013)	Goldmont (2016−2017)
Release date	9 January 2011 (13 years ago)	15 August 2017 (6 years ago)
Launch price (MSRP)	$85	$332
Current price	$56 (0.7x MSRP)	$1252 (3.8x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

i5-2500 has 53% better value for money than Atom C3858.

Detailed specifications

Core i5-2500 and Atom C3858 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)	12 (Dodeca-Core)
Threads	4	12
Base clock speed	3.3 GHz	2 GHz
Boost clock speed	3.7 GHz	2 GHz
L1 cache	64 KB (per core)	672 KB
L2 cache	256 KB (per core)	12 MB
L3 cache	6144 KB (shared)	12 MB
Chip lithography	32 nm	14 nm
Die size	216 mm2	no data
Maximum core temperature	73 °C	83 °C
Number of transistors	1,160 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core i5-2500 and Atom C3858 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	LGA1155	FCBGA1310
Power consumption (TDP)	95 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-2500 and Atom C3858. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i5-2500 and Atom C3858 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	+
Secure Boot	no data	+
Secure Key	no data	+
Identity Protection	+	no data
SGX	no data	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-2500 and Atom C3858 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-2500 and Atom C3858. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4: 2400
Maximum memory size	32 GB	256 GB
Max memory channels	2	2
Maximum memory bandwidth	21 GB/s	38.397 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 2000	no data
Quick Sync Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.1 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-2500 and Atom C3858 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-2500 and Atom C3858.

PCIe version	2.0	3
PCI Express lanes	16	16
USB revision	no data	3
Total number of SATA ports	no data	16
Max number of SATA 6 Gb/s Ports	no data	16
Number of USB ports	no data	8
Integrated LAN	no data	4x10/2.5/1 GBE

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.

Atom C3858 outperforms Core i5-2500 by 14% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	2.67	3.04
Recency	9 January 2011	15 August 2017
Physical cores	4	12
Threads	4	12
Cost	$85	$332
Chip lithography	32 nm	14 nm
Power consumption (TDP)	95 Watt	25 Watt

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Should you still have questions on choice between Core i5-2500 and Atom C3858, ask them in Comments section, and we shall answer.

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