Celeron 3865U vs Phenom II X3 P840

Aggregate performance score

Phenom II X3 P840
2010
3 cores / 3 threads, 25 Watt
0.82
Celeron 3865U
2017
2 cores / 2 threads, 15 Watt
0.83
+1.2%

Celeron 3865U outperforms Phenom II X3 P840 by a minimal 1% based on our aggregate benchmark results.

Primary details

Comparing Phenom II X3 P840 and Celeron 3865U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking25822580
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Series3x AMD Phenom IIIntel Celeron
Power efficiency3.105.24
Architecture codenameChamplain (2010−2011)Kaby Lake-U (2017)
Release date4 October 2010 (14 years ago)3 January 2017 (7 years ago)
Launch price (MSRP)no data$107

Detailed specifications

Phenom II X3 P840 and Celeron 3865U 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 cores3 (Tri-Core)2 (Dual-core)
Threads32
Base clock speedno data1.8 GHz
Boost clock speed1.9 GHz1.8 GHz
Bus typeno dataOPI
Bus rate3600 MHz4 GT/s
Multiplierno data22
L1 cache384 KB64K (per core)
L2 cache1.5 MB256K (per core)
L3 cacheno data2 MB (shared)
Chip lithography45 nm14 nm
Die sizeno data98.7 mm2
Maximum core temperatureno data100 °C
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Phenom II X3 P840 and Celeron 3865U 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 configurationno data1 (Uniprocessor)
SocketS1FCBGA1356,FPBGA1356
Power consumption (TDP)25 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom II X3 P840 and Celeron 3865U. You'll probably need this information if you require some particular technology.

Instruction set extensionsVirtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a)Intel® SSE4.1, Intel® SSE4.2
AES-NI-+
AVX-+
VirusProtect+-
vProno data+
Enhanced SpeedStep (EIST)no data+
Speed Shiftno data+
My WiFino data+
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data+
Idle Statesno data+
Thermal Monitoring-+
Flex Memory Accessno data+
Smart Responseno data+

Security technologies

Phenom II X3 P840 and Celeron 3865U technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+
Secure Keyno data+
MPX-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X3 P840 and Celeron 3865U are enumerated here.

AMD-V++
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P840 and Celeron 3865U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3, DDR4
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics 610
Max video memoryno data32 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data900 MHz

Graphics interfaces

Available interfaces and connections of Phenom II X3 P840 and Celeron 3865U integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Phenom II X3 P840 and Celeron 3865U integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@24Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Phenom II X3 P840 and Celeron 3865U integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.4

Peripherals

Specifications and connection of peripherals supported by Phenom II X3 P840 and Celeron 3865U.

PCIe versionno data2.0
PCI Express lanesno data10

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.

Phenom II X3 P840 0.82
Celeron 3865U 0.83
+1.2%

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.

Phenom II X3 P840 4425
Celeron 3865U 5425
+22.6%

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.

Phenom II X3 P840 27.7
+42.1%
Celeron 3865U 39.36

Gaming performance

Pros & cons summary


Performance score 0.82 0.83
Recency 4 October 2010 3 January 2017
Physical cores 3 2
Threads 3 2
Chip lithography 45 nm 14 nm
Power consumption (TDP) 25 Watt 15 Watt

Phenom II X3 P840 has 50% more physical cores and 50% more threads.

Celeron 3865U, on the other hand, has a 1.2% higher aggregate performance score, an age advantage of 6 years, a 221.4% more advanced lithography process, and 66.7% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Phenom II X3 P840 and Celeron 3865U.


Should you still have questions on choice between Phenom II X3 P840 and Celeron 3865U, ask them in Comments section, and we shall answer.

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AMD Phenom II X3 P840
Phenom II X3 P840
Intel Celeron 3865U
Celeron 3865U

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Community ratings

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