Celeron N2805 vs N2840

Place in the ranking	3042	3215
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Celeron
Power efficiency	4.98	4.94
Architecture codename	Bay Trail-M (2013−2014)	Bay Trail-M (2013−2014)
Release date	22 May 2014 (10 years ago)	11 September 2013 (11 years ago)
Launch price (MSRP)	no data	$107

Detailed specifications

Celeron N2840 and Celeron N2805 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	2.16 GHz	1.46 GHz
Boost clock speed	2.58 GHz	1.46 GHz
L1 cache	56K (per core)	56K (per core)
L2 cache	512K (per core)	512K (per core)
L3 cache	0 KB	0 KB
Chip lithography	22 nm	22 nm
Maximum core temperature	100 °C	80 °C
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron N2840 and Celeron N2805 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	FCBGA1170	FCBGA1170
Power consumption (TDP)	7.5 Watt	4.3 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron N2840 and Celeron N2805. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Smart Connect	+	+
RST	no data	-

Security technologies

Celeron N2840 and Celeron N2805 technologies aimed at improving security, for example, by protecting against hacks.

EDB	+	+
Secure Key	+	no data
Anti-Theft	-	-

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron N2840 and Celeron N2805 are enumerated here.

VT-d	-	-
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and Celeron N2805. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	8 GB	4 GB
Max memory channels	2	1
Maximum memory bandwidth	21.32 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for Intel Atom Processor Z3700 Series	Intel HD Graphics for Intel Atom Processor Z3700 Series
Quick Sync Video	+	-
Clear Video HD	-	-
Graphics max frequency	792 MHz	667 MHz
InTru 3D	-	-

Graphics interfaces

Available interfaces and connections of Celeron N2840 and Celeron N2805 integrated GPUs.

Number of displays supported

Peripherals

Specifications and connection of peripherals supported by Celeron N2840 and Celeron N2805.

PCIe version	2.0	2.0
PCI Express lanes	4	4
USB revision	3.0 and 2.0	3.0 and 2.0
Total number of SATA ports	2	2
Number of USB ports	5	5

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 N2840 0.37
+76.2%

Celeron N2805 0.21

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 N2840 588
+75.5%

Celeron N2805 335

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.

Celeron N2840 1331
+76.1%

Celeron N2805 756

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.

Celeron N2840 2533
+77.1%

Celeron N2805 1430

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.

Celeron N2840 1510
+70.6%

Celeron N2805 885

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

Celeron N2840 76
+72.7%

Celeron N2805 44

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

Celeron N2840 38
+58.3%

Celeron N2805 24