Celeron 450 vs B820

Place in the ranking	2889	3140
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Celeron	no data
Power efficiency	1.35	0.73
Architecture codename	Sandy Bridge (2011−2013)	Conroe-L (2007−2008)
Release date	1 July 2012 (12 years ago)	August 2008 (16 years ago)
Launch price (MSRP)	$86	no data

Detailed specifications

Celeron B820 and Celeron 450 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)	1 (Single-Core)
Threads	2	1
Base clock speed	1.7 GHz	2.2 GHz
Boost clock speed	1.7 GHz	2.2 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	17	no data
L1 cache	64K (per core)	64 KB
L2 cache	256K (per core)	512 KB
L3 cache	2 MB (shared)	0 KB
Chip lithography	32 nm	65 nm
Die size	131 mm²	77 mm²
Maximum core temperature	100 °C	60 °C
Number of transistors	504 million	105 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	1V-1.3375V

Compatibility

Information on Celeron B820 and Celeron 450 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	LGA775
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B820 and Celeron 450. 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	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Demand Based Switching	-	-
FDI	+	no data
Fast Memory Access	+	no data
FSB parity	no data	-

Security technologies

Celeron B820 and Celeron 450 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B820 and Celeron 450 are enumerated here.

VT-d	-	-
VT-x	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B820 and Celeron 450. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR1, DDR2, DDR3
Maximum memory size	16 GB	no data
Max memory channels	2	no data
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	no data
Graphics max frequency	1.05 GHz	no data

Graphics interfaces

Available interfaces and connections of Celeron B820 and Celeron 450 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 450.

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
+85.2%

Celeron 450 0.27

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
+85.2%

Celeron 450 433

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
+76.1%

Celeron 450 159

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
+206%

Celeron 450 161

Gaming performance

Pros & cons summary

Performance score	0.50	0.27
Physical cores	2	1
Threads	2	1
Chip lithography	32 nm	65 nm

Celeron B820 has a 85.2% higher aggregate performance score, 100% more physical cores and 100% more threads, and a 103.1% more advanced lithography process.

The Celeron B820 is our recommended choice as it beats the Celeron 450 in performance tests.

Be aware that Celeron B820 is a notebook processor while Celeron 450 is a desktop one.

Should you still have questions on choice between Celeron B820 and Celeron 450, ask them in Comments section, and we shall answer.