Celeron B800 vs i5-2520M

Place in the ranking	2221	2989
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i5	Intel Celeron
Power efficiency	3.81	1.14
Architecture codename	Sandy Bridge (2011−2013)	Sandy Bridge (2011−2013)
Release date	1 February 2011 (13 years ago)	19 June 2011 (13 years ago)
Launch price (MSRP)	$225	$80

Detailed specifications

Core i5-2520M 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	4	2
Base clock speed	2.5 GHz	1.5 GHz
Boost clock speed	3.2 GHz	1.5 GHz
Bus type	DMI 2.0	DMI 2.0
Bus rate	4 × 5 GT/s	4 × 5 GT/s
Multiplier	25	15
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	256K (per core)
L3 cache	3 MB (shared)	2 MB (shared)
Chip lithography	32 nm	32 nm
Die size	149 mm²	131 mm²
Maximum core temperature	100 °C	100 °C
Number of transistors	624 million	504 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i5-2520M 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	PPGA988	FCPGA988
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-2520M and Celeron B800. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	-
FMA	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
Demand Based Switching	-	-
FDI	+	+
Fast Memory Access	+	+

Security technologies

Core i5-2520M and Celeron B800 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Identity Protection	+	-
Anti-Theft	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-2520M and Celeron B800 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-2520M 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 3000	Intel HD Graphics for 2nd Generation Intel Processors
Quick Sync Video	+	-
Clear Video HD	+	-
Graphics max frequency	1.3 GHz	1 GHz
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Core i5-2520M and Celeron B800 integrated GPUs.

Number of displays supported	2	2
eDP	+	+
DisplayPort	+	+
HDMI	+	+
SDVO	+	+
CRT	+	+

Peripherals

Specifications and connection of peripherals supported by Core i5-2520M and Celeron B800.

PCIe version	2.0	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.

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.

i5-2520M 1.41
+236%

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.

i5-2520M 2237
+237%

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.

i5-2520M 470
+90.3%

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.

i5-2520M 934
+126%

Celeron B800 414

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i5-2520M 4041
+112%

Celeron B800 1910

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i5-2520M 8815
+133%

Celeron B800 3779

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i5-2520M 3542
+131%

Celeron B800 1534

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i5-2520M 18
+161%

Celeron B800 47