i7-1255U vs i3-2340UE

VS

Aggregate performance score

Core i3-2340UE
2011
2 cores / 4 threads, 17 Watt
0.61
Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.53
+1298%

Core i7-1255U outperforms Core i3-2340UE by a whopping 1298% based on our aggregate benchmark results.

Primary details

Comparing Core i3-2340UE and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2795896
Place by popularitynot in top-10074
Market segmentLaptopLaptop
SeriesIntel Core i3Intel Alder Lake-M
Power efficiency3.3953.78
Architecture codenameSandy Bridge (2011−2013)Alder Lake-U (2022)
Release date1 June 2011 (13 years ago)23 February 2022 (2 years ago)
Launch price (MSRP)$250no data

Detailed specifications

Core i3-2340UE 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)
Threads412
Base clock speedno data1.7 GHz
Boost clock speed1.3 GHz4.7 GHz
Bus typeDMI 2.0no data
Bus rate4 × 5 GT/sno data
Multiplier13no data
L1 cache64K (per core)80K (per core)
L2 cache256K (per core)1.25 MB (per core)
L3 cache3 MB (shared)12 MB (shared)
Chip lithography32 nm10 nm
Die size149 mm2no data
Maximum core temperatureno data100 °C
Number of transistors624 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Core i3-2340UE 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 configuration1 (Uniprocessor)1
SocketIntel BGA1023Intel BGA 1744
Power consumption (TDP)17 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-2340UE and Core i7-1255U. You'll probably need this information if you require some particular technology.

AES-NI-+
FMA++
AVX++
Enhanced SpeedStep (EIST)++
TSX-+

Security technologies

Core i3-2340UE 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 Core i3-2340UE and Core i7-1255U are enumerated here.

VT-dno data+
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-2340UE and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4, DDR5
Maximum memory size16 GBno data
Max memory channels2no data
Maximum memory bandwidth21.335 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 3000Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz)

Peripherals

Specifications and connection of peripherals supported by Core i3-2340UE and Core i7-1255U.

PCIe versionno data4.0
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.

i3-2340UE 0.61
i7-1255U 8.53
+1298%

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.

i3-2340UE 976
i7-1255U 13544
+1288%

Gaming performance

Pros & cons summary


Performance score 0.61 8.53
Integrated graphics card 0.66 9.47
Recency 1 June 2011 23 February 2022
Physical cores 2 10
Threads 4 12
Chip lithography 32 nm 10 nm
Power consumption (TDP) 17 Watt 15 Watt

i7-1255U has a 1298.4% higher aggregate performance score, 1334.8% faster integrated GPU, an age advantage of 10 years, 400% more physical cores and 200% more threads, a 220% more advanced lithography process, and 13.3% lower power consumption.

The Core i7-1255U is our recommended choice as it beats the Core i3-2340UE in performance tests.


Should you still have questions on choice between Core i3-2340UE 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.


Intel Core i3-2340UE
Core i3-2340UE
Intel Core i7-1255U
Core i7-1255U

Similar processor comparisons

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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 Core i3-2340UE or Core i7-1255U, agree or disagree with our judgements, or report an error or mismatch.