Celeron M 440 vs Athlon II X2 255

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Aggregate performance score

Athlon II X2 255
2010
2 cores / 2 threads, 65 Watt
0.74
+573%
Celeron M 440
1 core / 1 thread, 27 Watt
0.11

Athlon II X2 255 outperforms Celeron M 440 by a whopping 573% based on our aggregate benchmark results.

Primary details

Comparing Athlon II X2 255 and Celeron M 440 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking26803377
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.02no data
Market segmentDesktop processorLaptop
Seriesno dataCeleron M
Power efficiency1.080.39
Architecture codenameRegor (2009−2013)Yonah (2005−2006)
Release date25 January 2010 (14 years ago)no data
Launch price (MSRP)$60no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X2 255 and Celeron M 440 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 cores2 (Dual-core)1 (Single-Core)
Threads21
Base clock speed3.1 GHz1.86 GHz
Boost clock speed3.1 GHz1.86 GHz
Bus rateno data533 MHz
L1 cache128 KBno data
L2 cache1 MBno data
L3 cache0 KB1 MB L2 Cache
Chip lithography45 nm65 nm
Die size117 mm2no data
Maximum core temperatureno data100 °C
Number of transistors410 millionno data
64 bit support+-
Windows 11 compatibility--
VID voltage rangeno data1.0V-1.3V

Compatibility

Information on Athlon II X2 255 and Celeron M 440 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 configuration1no data
SocketAM3PBGA479,PPGA478
Power consumption (TDP)65 Watt27 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X2 255 and Celeron M 440. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)no data-
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
Idle Statesno data-
Demand Based Switchingno data-
PAEno data32 Bit
FSB parityno data-

Security technologies

Athlon II X2 255 and Celeron M 440 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X2 255 and Celeron M 440 are enumerated here.

VT-xno data-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X2 255 and Celeron M 440. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3no data

Peripherals

Specifications and connection of peripherals supported by Athlon II X2 255 and Celeron M 440.

PCIe version2.0no 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.

Athlon II X2 255 0.74
+573%
Celeron M 440 0.11

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.

Athlon II X2 255 1175
+595%
Celeron M 440 169

Gaming performance

Pros & cons summary


Performance score 0.74 0.11
Physical cores 2 1
Threads 2 1
Chip lithography 45 nm 65 nm
Power consumption (TDP) 65 Watt 27 Watt

Athlon II X2 255 has a 572.7% higher aggregate performance score, 100% more physical cores and 100% more threads, and a 44.4% more advanced lithography process.

Celeron M 440, on the other hand, has 140.7% lower power consumption.

The Athlon II X2 255 is our recommended choice as it beats the Celeron M 440 in performance tests.

Note that Athlon II X2 255 is a desktop processor while Celeron M 440 is a notebook one.


Should you still have questions on choice between Athlon II X2 255 and Celeron M 440, ask them in Comments section, and we shall answer.

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AMD Athlon II X2 255
Athlon II X2 255
Intel Celeron M 440
Celeron M 440

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.3 179 votes

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Questions & comments

Here you can ask a question about Athlon II X2 255 or Celeron M 440, agree or disagree with our judgements, or report an error or mismatch.