Celeron N4020C vs B815

Primary details

Comparing Celeron B815 and Celeron N4020C processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	2482
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	no data
Power efficiency	no data	15.17
Architecture codename	Sandy Bridge (2011−2013)	no data
Release date	1 January 2012 (12 years ago)	1 January 2021 (3 years ago)
Launch price (MSRP)	$86	no data

Detailed specifications

Celeron B815 and Celeron N4020C 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	2
Base clock speed	1.6 GHz	1.1 GHz
Boost clock speed	1.6 GHz	2.8 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	16	no data
L1 cache	128 KB	no data
L2 cache	512 KB	no data
L3 cache	2 MB (shared)	4 MB
Chip lithography	32 nm	14 nm
Die size	131 mm2	no data
Maximum core temperature	100 °C	105 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron B815 and Celeron N4020C 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
Socket	FCPGA988,PGA988	FCBGA1090
Power consumption (TDP)	35 Watt	6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B815 and Celeron N4020C. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.2
AES-NI	-	+
FMA	+	-
vPro	no data	-
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	-
My WiFi	-	no data
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	no data	-
Demand Based Switching	-	no data
GPIO	no data	+
Turbo Boost Max 3.0	no data	-
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Celeron B815 and Celeron N4020C technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B815 and Celeron N4020C are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B815 and Celeron N4020C. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4/LPDDR4 up to 2400 MT/s
Maximum memory size	16 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	21.335 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel UHD Graphics 600
Max video memory	no data	8 GB
Quick Sync Video	-	+
Graphics max frequency	1.05 GHz	650 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Celeron B815 and Celeron N4020C integrated GPUs.

Number of displays supported	2	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
MIPI-DSI	no data	+
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron B815 and Celeron N4020C integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2160@30Hz
Max resolution over eDP	no data	4096x2160@60Hz
Max resolution over DisplayPort	no data	4096x2160@60Hz

Graphics API support

APIs supported by Celeron B815 and Celeron N4020C integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.4

Peripherals

Specifications and connection of peripherals supported by Celeron B815 and Celeron N4020C.

PCIe version	2.0	2.0
PCI Express lanes	16	6
USB revision	no data	2.0/3.0
Total number of SATA ports	no data	2
Max number of SATA 6 Gb/s Ports	no data	2
Number of USB ports	no data	8
Integrated LAN	no data	-
UART	no data	+

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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Pros & cons summary

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Recency	1 January 2012	1 January 2021
Chip lithography	32 nm	14 nm
Power consumption (TDP)	35 Watt	6 Watt

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Should you still have questions on choice between Celeron B815 and Celeron N4020C, ask them in Comments section, and we shall answer.

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