Intel Core i7-1255UL vs Intel Core i5-2520M

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-1255UL or Intel Core i7-1255UL – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i7-1255UL features 10 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q3/2022 and belongs to the 12 generation of the Intel Core i7 series.
To use the Intel Core i7-1255UL, you'll need a motherboard with a BGA 1744 socket.
The Intel Core i5-2520M features 2 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q1/2011 and belongs to the 2 generation of the Intel Core i5 series.
To use the Intel Core i5-2520M, you'll need a motherboard with a PPGA 988 socket.
Intel Core i 1200P/1200U Group Intel Core i 2000M
12 Generation 2
Mobile Segment Mobile
Intel Core i7-1255UL Name Intel Core i5-2520M
Intel Core i7 Family Intel Core i5
 
 

CPU Cores and Base Frequency

The Intel Core i7-1255UL has 10 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the A-Core is 2.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
The Intel Core i5-2520M has 2 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Core i5-2520M is 2.5 GHz
and turbo frequency for one core is 3.2 GHz.
12 Threads 4
1.2 GHz B-Core Frequency None
None None 2x
10 CPU Cores 2
hybrid (big.LITTLE) Core architecture normal
2x Golden Cove Cores A None
Yes Hyperthreading Yes
2.6 GHz A-Core Frequency None
4.7 GHz A-Core Frequency Turbo None
No Overclocking No
8x Gracemont Cores B None
3.5 GHz B-Core Frequency Turbo None
None None 3.2 GHz
None None 2.5 GHz
None None 3.2 GHz
 
 

Internal Graphics

The Intel Core i7-1255UL has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-1255UL uses the Intel Iris Xe Graphics 96 (Alder Lake), which has 768 texture shaders
and 96 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i5-2520M has integrated graphics, called iGPU for short.
Specifically, the Intel Core i5-2520M uses the Intel HD Graphics 3000, which has 96 texture shaders
and 12 execution units.
768 Shaders 96
Q1/2022 Release date Q1/2011
10 nm Technology 32 nm
12.1 Direct X 10.1
32.0 GB Max. GPU Memory 2.0 GB
-- Max. displays --
96 Execution units 12
0.35 GHz GPU frequency 0.65 GHz
13 Generation 6
1.25 GHz GPU (Turbo) 1.3 GHz
Intel Iris Xe Graphics 96 (Alder Lake) GPU name Intel HD Graphics 3000
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode VP8 No
Decode VC-1 Decode
Decode / Encode JPEG No
Decode AV1 No
Decode / Encode h265 / HEVC (8 bit) No
Decode / Encode AVC Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP9 No
Decode / Encode h265 / HEVC (10 bit) No
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 76.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 16.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.3 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI Yes
DDR4-3200, DDR5-4800 Memory type DDR3-1333
No ECC No
64.0 GB Max. Memory 16.0 GB
2 Memory channels 2
76.8 GB/s Bandwidth 21.3 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 15 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 35 W watts.
55 W TDP (PL2) None
12 W TDP down None
28 W TDP up None
15 W TDP (PL1 / PBP) 35 W
100 °C Tjunction max --
 
 

Technical details

The Intel Core i7-1255UL is manufactured using a 10 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 12.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i5-2520M is manufactured using a 32 nm process.
In total, this processor boasts a generous 3.0 MB cache.
Q3/2022 Release date Q1/2011
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX
10 nm Technology 32 nm
Monolithic Chip design Monolithic
-- Release price --
Alder Lake U Architecture Sandy Bridge H
12.0 MB L3-Cache 3.0 MB
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
BGA 1744 Socket PPGA 988
6.5 MB L2-Cache 0 bytes