M-5Y51 vs i5-4258U

VS

Aggregate performance score

Core i5-4258U
2013
2 cores / 4 threads, 28 Watt
1.66
+31.7%
Core M-5Y51
2014
2 cores / 4 threads, 4 Watt
1.26

Core i5-4258U outperforms Core M-5Y51 by a substantial 32% based on our aggregate benchmark results.

Primary details

Comparing Core i5-4258U and Core M-5Y51 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking20652292
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i5Intel Core M
Power efficiency5.6123.85
Architecture codenameHaswell (2013−2015)Broadwell-Y (2014)
Release date4 June 2013 (11 years ago)27 October 2014 (10 years ago)
Launch price (MSRP)$342no data

Detailed specifications

Core i5-4258U and Core M-5Y51 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)2 (Dual-core)
Threads44
Base clock speed2.4 GHz1.1 GHz
Boost clock speed2.9 GHz2.6 GHz
Bus rate5 GT/sno data
L1 cache64K (per core)64K (per core)
L2 cache256K (per core)256K (per core)
L3 cache3 MB (shared)4 MB (shared)
Chip lithography22 nm14 nm
Die size118 mm250 mm2
Maximum core temperature100 °C95 °C
Number of transistors1,400 million1300 Million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i5-4258U and Core M-5Y51 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
SocketFCBGA1168FCBGA1234
Power consumption (TDP)28 Watt4.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-4258U and Core M-5Y51. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Smart Responseno data+
GPIO+no data
Smart Connect+no data
FDI-+
Fast Memory Accessno data+
AMT9.5no data
Matrix Storage-no data
HD Audio+no data
RST+no data

Security technologies

Core i5-4258U and Core M-5Y51 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Secure Key++
Identity Protection++
OS Guardno data+
Anti-Theft+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-4258U and Core M-5Y51 are enumerated here.

AMD-V++
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-4258U and Core M-5Y51. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size16 GB16 GB
Max memory channels22
Maximum memory bandwidth25.6 GB/s25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel Iris Graphics 5100Intel HD Graphics 5300
Max video memory2 GB16 GB
Quick Sync Video++
Clear Video HD++
Graphics max frequency1.1 GHz900 MHz
InTru 3D++

Graphics interfaces

Available interfaces and connections of Core i5-4258U and Core M-5Y51 integrated GPUs.

Number of displays supported33
eDP++
DisplayPort++
HDMI++

Graphics image quality

Maximum display resolutions supported by Core i5-4258U and Core M-5Y51 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.43280x2000@60Hz2560x1600@60Hz
Max resolution over DisplayPort3200x2000@60Hz2560x1600@60Hz

Graphics API support

APIs supported by Core i5-4258U and Core M-5Y51 integrated GPUs, sometimes API versions are included.

DirectX11.2/1211.2/12
OpenGL4.34.3

Peripherals

Specifications and connection of peripherals supported by Core i5-4258U and Core M-5Y51.

PCIe version2.02.0
PCI Express lanes1212
PCI support-no data
USB revision3.0no data
Total number of SATA ports4no data
Max number of SATA 6 Gb/s Ports4no data
Integrated IDE-no data
Number of USB ports4no data
Integrated LAN-no data
UART+no 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.

i5-4258U 1.66
+31.7%
M-5Y51 1.26

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.

i5-4258U 2638
+31.8%
M-5Y51 2002

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i5-4258U 862
+31.6%
M-5Y51 655

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i5-4258U 1684
+50.1%
M-5Y51 1122

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i5-4258U 4572
+43.3%
M-5Y51 3190

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i5-4258U 10121
+91.3%
M-5Y51 5291

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i5-4258U 3865
+81.7%
M-5Y51 2127

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i5-4258U 18
+44.1%
M-5Y51 25.94

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i5-4258U 3
+84.2%
M-5Y51 2

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i5-4258U 283
+86.2%
M-5Y51 152

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i5-4258U 112
+33.3%
M-5Y51 84

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i5-4258U 1.24
+29.2%
M-5Y51 0.96

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i5-4258U 1.7
+50%
M-5Y51 1.1

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i5-4258U 18
+96.7%
M-5Y51 9

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i5-4258U 94
+71.5%
M-5Y51 55

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i5-4258U 2030
M-5Y51 2048
+0.9%

Geekbench 3 32-bit multi-core

i5-4258U 5783
+67.4%
M-5Y51 3454

Geekbench 3 32-bit single-core

i5-4258U 2739
+30.9%
M-5Y51 2093

Geekbench 2

i5-4258U 6867
+56.4%
M-5Y51 4391

Gaming performance

Pros & cons summary


Performance score 1.66 1.26
Integrated graphics card 1.93 1.04
Recency 4 June 2013 27 October 2014
Chip lithography 22 nm 14 nm
Power consumption (TDP) 28 Watt 4 Watt

i5-4258U has a 31.7% higher aggregate performance score, and 85.6% faster integrated GPU.

M-5Y51, on the other hand, has an age advantage of 1 year, a 57.1% more advanced lithography process, and 600% lower power consumption.

The Core i5-4258U is our recommended choice as it beats the Core M-5Y51 in performance tests.


Should you still have questions on choice between Core i5-4258U and Core M-5Y51, ask them in Comments section, and we shall answer.

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Intel Core i5-4258U
Core i5-4258U
Intel Core M-5Y51
Core M-5Y51

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Community ratings

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Questions & comments

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