i7-1255U vs Xeon E3-1240 v2

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Aggregate performance score

Xeon E3-1240 v2
2012
4 cores / 8 threads, 69 Watt
4.00
Core i7-1255U
2022
10 cores / 12 threads, 15 Watt
8.53
+113%

Core i7-1255U outperforms Xeon E3-1240 v2 by a whopping 113% based on our aggregate benchmark results.

Primary details

Comparing Xeon E3-1240 v2 and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1425895
Place by popularitynot in top-10074
Cost-effectiveness evaluation2.14no data
Market segmentServerLaptop
Seriesno dataIntel Alder Lake-M
Power efficiency5.4953.82
Architecture codenameIvy Bridge (2012−2013)Alder Lake-U (2022)
Release date14 May 2012 (12 years ago)23 February 2022 (2 years ago)
Launch price (MSRP)$304no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E3-1240 v2 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 cores4 (Quad-Core)10 (Deca-Core)
Threads812
Base clock speed3.4 GHz1.7 GHz
Boost clock speed3.8 GHz4.7 GHz
Bus rate5 GT/sno data
L1 cache64 KB (per core)80K (per core)
L2 cache256 KB (per core)1.25 MB (per core)
L3 cache8 MB (shared)12 MB (shared)
Chip lithography22 nm10 nm
Die size160 mm2no data
Maximum core temperatureno data100 °C
Number of transistors1,400 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Xeon E3-1240 v2 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
SocketFCLGA1155Intel BGA 1744
Power consumption (TDP)69 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1240 v2 and Core i7-1255U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVXno data
AES-NI++
FMA-+
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX-+
Thermal Monitoring+-
Flex Memory Access+no data
Demand Based Switching+no data
Fast Memory Access+no data

Security technologies

Xeon E3-1240 v2 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data
Identity Protection+-

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1240 v2 and Core i7-1255U are enumerated here.

VT-d++
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1240 v2 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4, DDR5
Maximum memory size32.77 GBno data
Max memory channels2no data
Maximum memory bandwidth25.6 GB/sno data
ECC memory support+-

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 Xeon E3-1240 v2 and Core i7-1255U.

PCIe version3.04.0
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.

Xeon E3-1240 v2 4.00
i7-1255U 8.53
+113%

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.

Xeon E3-1240 v2 6361
i7-1255U 13545
+113%

Gaming performance

Pros & cons summary


Performance score 4.00 8.53
Recency 14 May 2012 23 February 2022
Physical cores 4 10
Threads 8 12
Chip lithography 22 nm 10 nm
Power consumption (TDP) 69 Watt 15 Watt

i7-1255U has a 113.3% higher aggregate performance score, an age advantage of 9 years, 150% more physical cores and 50% more threads, a 120% more advanced lithography process, and 360% lower power consumption.

The Core i7-1255U is our recommended choice as it beats the Xeon E3-1240 v2 in performance tests.

Be aware that Xeon E3-1240 v2 is a server/workstation processor while Core i7-1255U is a notebook one.


Should you still have questions on choice between Xeon E3-1240 v2 and Core i7-1255U, ask them in Comments section, and we shall answer.

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Intel Xeon E3-1240 v2
Xeon E3-1240 v2
Intel Core i7-1255U
Core i7-1255U

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Community ratings

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Questions & comments

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