i7-1255U vs Athlon II X2 265

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Aggregate performance score

Athlon II X2 265
2010
2 cores / 2 threads, 65 Watt
0.80
Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.53
+966%

Core i7-1255U outperforms Athlon II X2 265 by a whopping 966% based on our aggregate benchmark results.

Primary details

Comparing Athlon II X2 265 and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2622896
Place by popularitynot in top-10074
Cost-effectiveness evaluation1.64no data
Market segmentDesktop processorLaptop
Seriesno dataIntel Alder Lake-M
Power efficiency1.1653.78
Architecture codenameRegor (2009−2013)Alder Lake-U (2022)
Release date21 September 2010 (14 years ago)23 February 2022 (2 years ago)
Launch price (MSRP)$83no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X2 265 and Core i7-1255U 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)10 (Deca-Core)
Threads212
Base clock speed3.3 GHz1.7 GHz
Boost clock speed3.3 GHz4.7 GHz
L1 cache128 KB80K (per core)
L2 cache1 MB1.25 MB (per core)
L3 cache0 KB12 MB (shared)
Chip lithography45 nm10 nm
Die size117 mm2no data
Maximum core temperatureno data100 °C
Number of transistors410 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Athlon II X2 265 and Core i7-1255U 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 configuration11
SocketAM3Intel BGA 1744
Power consumption (TDP)65 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X2 265 and Core i7-1255U. You'll probably need this information if you require some particular technology.

AES-NI-+
FMA-+
AVX-+
Enhanced SpeedStep (EIST)no data+
TSX-+

Security technologies

Athlon II X2 265 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X2 265 and Core i7-1255U are enumerated here.

VT-dno data+
VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X2 265 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR2, DDR3DDR4, DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel Iris Xe Graphics G7 96EUs ( - 1250 MHz)

Peripherals

Specifications and connection of peripherals supported by Athlon II X2 265 and Core i7-1255U.

PCIe version2.04.0
PCI Express lanesno data20

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 265 0.80
i7-1255U 8.53
+966%

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 265 1267
i7-1255U 13544
+969%

Gaming performance

Pros & cons summary


Performance score 0.80 8.53
Recency 21 September 2010 23 February 2022
Physical cores 2 10
Threads 2 12
Chip lithography 45 nm 10 nm
Power consumption (TDP) 65 Watt 15 Watt

i7-1255U has a 966.3% higher aggregate performance score, an age advantage of 11 years, 400% more physical cores and 500% more threads, a 350% more advanced lithography process, and 333.3% lower power consumption.

The Core i7-1255U is our recommended choice as it beats the Athlon II X2 265 in performance tests.

Note that Athlon II X2 265 is a desktop processor while Core i7-1255U is a notebook one.


Should you still have questions on choice between Athlon II X2 265 and Core i7-1255U, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD Athlon II X2 265
Athlon II X2 265
Intel Core i7-1255U
Core i7-1255U

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Community ratings

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


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Questions & comments

Here you can ask a question about Athlon II X2 265 or Core i7-1255U, agree or disagree with our judgements, or report an error or mismatch.