Atom D2500 vs Celeron 3865U

Place in the ranking	2580	3301
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Atom
Power efficiency	5.24	1.42
Architecture codename	Kaby Lake-U (2017)	Cedarview (2011−2012)
Release date	3 January 2017 (7 years ago)	1 November 2011 (13 years ago)
Launch price (MSRP)	$107	no data

Detailed specifications

Celeron 3865U and Atom D2500 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	1.8 GHz	1.86 GHz
Boost clock speed	1.8 GHz	1.87 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	22	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	512K (per core)
L3 cache	2 MB (shared)	0 KB
Chip lithography	14 nm	32 nm
Die size	98.7 mm²	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 3865U and Atom D2500 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	FCBGA1356,FPBGA1356	FCBGA559
Power consumption (TDP)	15 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 3865U and Atom D2500. 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
AES-NI	+	-
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	-
Speed Shift	+	no data
My WiFi	+	no data
Turbo Boost Technology	-	-
Hyper-Threading Technology	+	+
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Smart Response	+	no data
Demand Based Switching	no data	-
PAE	no data	36 Bit
AMT	no data	-
HD Audio	no data	+

Security technologies

Celeron 3865U and Atom D2500 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+
Secure Key	+	no data
MPX	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 3865U and Atom D2500 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 3865U and Atom D2500. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3
Maximum memory size	32 GB	4 GB
Max memory channels	2	1
Maximum memory bandwidth	34.134 GB/s	6.4 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 610	Intel GMA
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	900 MHz	no data

Graphics interfaces

Available interfaces and connections of Celeron 3865U and Atom D2500 integrated GPUs.

Number of displays supported	3	2
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron 3865U and Atom D2500 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Celeron 3865U and Atom D2500 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Celeron 3865U and Atom D2500.

PCIe version	2.0	no data
PCI Express lanes	10	4
Total number of SATA ports	no data	2
Number of USB ports	no data	8

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 3865U 0.83
+453%

Atom D2500 0.15

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 3865U 1321
+448%

Atom D2500 241

Gaming performance

Pros & cons summary

Performance score	0.83	0.15
Integrated graphics card	1.85	0.01
Recency	3 January 2017	1 November 2011
Chip lithography	14 nm	32 nm
Power consumption (TDP)	15 Watt	10 Watt

Celeron 3865U has a 453.3% higher aggregate performance score, 18400% faster integrated GPU, an age advantage of 5 years, and a 128.6% more advanced lithography process.

Atom D2500, on the other hand, has 50% lower power consumption.

The Celeron 3865U is our recommended choice as it beats the Atom D2500 in performance tests.

Should you still have questions on choice between Celeron 3865U and Atom D2500, ask them in Comments section, and we shall answer.