Celeron B800 vs B820

Place in the ranking	2890	2990
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Celeron
Power efficiency	1.35	1.14
Architecture codename	Sandy Bridge (2011−2013)	Sandy Bridge (2011−2013)
Release date	1 July 2012 (12 years ago)	19 June 2011 (13 years ago)
Launch price (MSRP)	$86	$80

Detailed specifications

Celeron B820 and Celeron B800 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	1.7 GHz	no data
Boost clock speed	1.7 GHz	1.5 GHz
Bus type	DMI 2.0	DMI 2.0
Bus rate	4 × 5 GT/s	4 × 5 GT/s
Multiplier	17	15
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	256K (per core)
L3 cache	2 MB (shared)	2 MB (shared)
Chip lithography	32 nm	32 nm
Die size	131 mm²	131 mm²
Maximum core temperature	100 °C	100 °C
Number of transistors	504 million	504 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron B820 and Celeron B800 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	FCPGA988,PGA988	G2 (988B)
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B820 and Celeron B800. You'll probably need this information if you require some particular technology.

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

Security technologies

Celeron B820 and Celeron B800 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B820 and Celeron B800 are enumerated here.

VT-d	-	no data
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B820 and Celeron B800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
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 Compare	Intel HD Graphics for 2nd Generation Intel Processors	Intel HD Graphics (Sandy Bridge) (650 - 1000 MHz)
Graphics max frequency	1.05 GHz	no data

Graphics interfaces

Available interfaces and connections of Celeron B820 and Celeron B800 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 Celeron B820 and Celeron B800.

PCIe version	2.0	no data
PCI Express lanes	16	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.

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.

Celeron B820 0.50
+19%

Celeron B800 0.42

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Celeron B820 802
+21%

Celeron B800 663

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Celeron B820 280
+13.4%

Celeron B800 247

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Celeron B820 492
+18.3%

Celeron B800 416