Atom Z520 vs Celeron N2840

Place in the ranking	3027	3387
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Atom
Power efficiency	5.00	3.79
Architecture codename	Bay Trail-M (2013−2014)	Silverthorne (2008−2010)
Release date	22 May 2014 (10 years ago)	2 April 2008 (16 years ago)
Launch price (MSRP)	no data	$65

Detailed specifications

Celeron N2840 and Atom Z520 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	2
Base clock speed	2.16 GHz	1.33 GHz
Boost clock speed	2.58 GHz	0.03 GHz
Bus type	no data	FSB
Bus rate	no data	533.33 MT/s
Multiplier	no data	10
L1 cache	56K (per core)	56 KB
L2 cache	512K (per core)	512 KB
L3 cache	0 KB	0 KB
Chip lithography	22 nm	45 nm
Die size	no data	24.18 mm²
Maximum core temperature	100 °C	90 °C
Number of transistors	no data	47 Million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	no data	0.75-1.1V

Compatibility

Information on Celeron N2840 and Atom Z520 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 (Uniprocessor)
Socket	FCBGA1170	PBGA441
Power consumption (TDP)	7.5 Watt	2 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron N2840 and Atom Z520. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	+
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	no data	+
Smart Connect	+	no data
FSB parity	no data	-

Security technologies

Celeron N2840 and Atom Z520 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron N2840 and Atom Z520 are enumerated here.

VT-d	-	-
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and Atom Z520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	8 GB	no data
Max memory channels	2	no data
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	-
Quick Sync Video	+	-
Clear Video HD	-	-
Graphics max frequency	792 MHz	-
InTru 3D	-	-

Graphics interfaces

Available interfaces and connections of Celeron N2840 and Atom Z520 integrated GPUs.

Number of displays supported

Peripherals

Specifications and connection of peripherals supported by Celeron N2840 and Atom Z520.

PCIe version	2.0	no data
PCI Express lanes	4	no data
USB revision	3.0 and 2.0	no data
Total number of SATA ports	2	no data
Number of USB ports	5	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 N2840 0.37
+363%

Atom Z520 0.08

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 587
+381%

Atom Z520 122

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
+196%

Atom Z520 449

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
+267%

Atom Z520 690

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
+286%

Atom Z520 391

Gaming performance

Pros & cons summary

Performance score	0.37	0.08
Recency	22 May 2014	2 April 2008
Physical cores	2	1
Chip lithography	22 nm	45 nm
Power consumption (TDP)	7 Watt	2 Watt

Celeron N2840 has a 362.5% higher aggregate performance score, an age advantage of 6 years, 100% more physical cores, and a 104.5% more advanced lithography process.

Atom Z520, on the other hand, has 250% lower power consumption.

The Celeron N2840 is our recommended choice as it beats the Atom Z520 in performance tests.

Should you still have questions on choice between Celeron N2840 and Atom Z520, ask them in Comments section, and we shall answer.