Atom D525 vs Celeron 2981U

Place in the ranking	2747	3149
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Atom
Power efficiency	4.10	1.82
Architecture codename	Haswell (2013−2015)	Pinetrail (2009−2011)
Release date	1 January 2014 (10 years ago)	21 June 2010 (14 years ago)
Launch price (MSRP)	no data	$63

Detailed specifications

Celeron 2981U and Atom D525 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	4
Base clock speed	1.6 GHz	1.8 GHz
Boost clock speed	1.6 GHz	1.83 GHz
Bus rate	5 GT/s	no data
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	512K (per core)
L3 cache	2 MB	0 KB
Chip lithography	22 nm	45 nm
Die size	no data	66 mm²
Maximum core temperature	100 °C	100 °C
Number of transistors	no data	176 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron 2981U and Atom D525 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	FCBGA1168	FCBGA559
Power consumption (TDP)	15 Watt	13 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 2981U and Atom D525. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Enhanced SpeedStep (EIST)	+	-
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	+
Idle States	+	-
Thermal Monitoring	+	-
Smart Response	-	no data
Demand Based Switching	no data	-
PAE	no data	32 Bit
GPIO	+	no data
Smart Connect	+	no data
FDI	-	no data
AMT	9.5	no data
Matrix Storage	-	no data
HD Audio	+	no data
RST	+	no data

Security technologies

Celeron 2981U and Atom D525 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 2981U and Atom D525 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 2981U and Atom D525. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR2, DDR3
Maximum memory size	16 GB	4 GB
Max memory channels	2	1
Maximum memory bandwidth	25.6 GB/s	6.4 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics for 4th Generation Intel Processors	Intel GMA 3150
Quick Sync Video	+	-
Clear Video	+	no data
Graphics max frequency	1 GHz	no data

Graphics interfaces

Available interfaces and connections of Celeron 2981U and Atom D525 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-

Peripherals

Specifications and connection of peripherals supported by Celeron 2981U and Atom D525.

PCIe version	2.0	no data
PCI Express lanes	12	no data
PCI support	-	no data
USB revision	3.0	no data
Total number of SATA ports	2	no data
Max number of SATA 6 Gb/s Ports	2	no data
Integrated IDE	-	no data
Number of USB ports	4	no data
Integrated LAN	-	no data
UART	+	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 2981U 0.65
+160%

Atom D525 0.25

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 2981U 1036
+158%

Atom D525 402

Gaming performance

Pros & cons summary

Performance score	0.65	0.25
Integrated graphics card	0.77	0.01
Recency	1 January 2014	21 June 2010
Threads	2	4
Chip lithography	22 nm	45 nm
Power consumption (TDP)	15 Watt	13 Watt

Celeron 2981U has a 160% higher aggregate performance score, 7600% faster integrated GPU, an age advantage of 3 years, and a 104.5% more advanced lithography process.

Atom D525, on the other hand, has 100% more threads, and 15.4% lower power consumption.

The Celeron 2981U is our recommended choice as it beats the Atom D525 in performance tests.

Should you still have questions on choice between Celeron 2981U and Atom D525, ask them in Comments section, and we shall answer.