Core M-5Y51 vs Pentium 4405U

General info

Comparing Pentium 4405U and Core M-5Y51 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2116	2155
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Pentium	Intel Core M
Architecture codename	Skylake (2015−2016)	Broadwell-Y (2014)
Release date	1 September 2015 (8 years ago)	27 October 2014 (9 years ago)
Launch price (MSRP)	$161	no data
Current price	$775 (4.8x MSRP)	$759

Technical specs

Pentium 4405U 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 cores	2 (Dual-core)	2 (Dual-core)
Threads	4	4
Base clock speed	2.1 GHz	1.1 GHz
Boost clock speed	2.1 GHz	2.6 GHz
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	2 MB	4 MB (shared)
Chip lithography	14 nm	14 nm
Die size	99 mm2	50 mm2
Maximum core temperature	100 °C	95 °C
Number of transistors	1750 Million	1300 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Pentium 4405U 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 configuration	1	1
Socket	FCBGA1356	FCBGA1234
Power consumption (TDP)	15 Watt	4.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 4405U and Core M-5Y51. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	+	+
TSX	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	-	-
Smart Response	+	+
FDI	no data	+
Fast Memory Access	no data	+
Status	Discontinued	Discontinued

Security technologies

Pentium 4405U and Core M-5Y51 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	+
MPX	-	no data
Identity Protection	+	+
SGX	Yes with Intel® ME	no data
OS Guard	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 4405U 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 Pentium 4405U and Core M-5Y51. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3, DDR3
Maximum memory size	32 GB	16 GB
Max memory channels	2	2
Maximum memory bandwidth	34.1 GB/s	25.6 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 510	Intel HD Graphics 5300
Max video memory	32 GB	16 GB
Quick Sync Video	+	+
Clear Video	+	no data
Clear Video HD	+	+
Graphics max frequency	950 MHz	900 MHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Pentium 4405U and Core M-5Y51 integrated GPUs.

Number of displays supported	3	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Pentium 4405U and Core M-5Y51 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	2560x1600@60Hz
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	2560x1600@60Hz
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Pentium 4405U and Core M-5Y51 integrated GPUs, sometimes API versions are included.

DirectX	12	11.2/12
OpenGL	4.4	4.3

Peripherals

Specifications and connection of peripherals supported by Pentium 4405U and Core M-5Y51.

PCIe version	2.0	2.0
PCI Express lanes	10	12

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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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.

Pentium 4405U outperforms Core M-5Y51 by 5% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	1.35	1.28
Integrated graphics card	1.37	1.21
Recency	1 September 2015	27 October 2014
Power consumption (TDP)	15 Watt	4 Watt

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Should you still have questions on choice between Pentium 4405U and Core M-5Y51, ask them in Comments section, and we shall answer.

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