i5-12450H vs i7-5820K

Primary details

Comparing Core i7-5820K and Core i5-12450H processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1089	737
Place by popularity	not in top-100	4
Cost-effectiveness evaluation	1.20	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Alder Lake-P
Power efficiency	4.19	22.44
Architecture codename	Haswell-E (2014)	Alder Lake-H (2022)
Release date	1 September 2014 (10 years ago)	January 2022 (2 years ago)
Launch price (MSRP)	$410	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-5820K and Core i5-12450H 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	6 (Hexa-Core)	8 (Octa-Core)
Threads	12	12
Base clock speed	3.3 GHz	2 GHz
Boost clock speed	3.6 GHz	4.4 GHz
Bus rate	0 GT/s	no data
L1 cache	64 KB (per core)	80K (per core)
L2 cache	256 KB (per core)	1.25 MB (per core)
L3 cache	15 MB (shared)	12 MB (shared)
Chip lithography	22 nm	10 nm
Die size	356 mm2	217 mm2
Maximum core temperature	67 °C	100 °C
Number of transistors	2,600 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	-

Compatibility

Information on Core i7-5820K and Core i5-12450H 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	FCLGA2011	Intel BGA 1744
Power consumption (TDP)	140 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-5820K and Core i5-12450H. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
FMA	-	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	-
Smart Response	+	no data
Demand Based Switching	-	no data

Security technologies

Core i7-5820K and Core i5-12450H 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 Core i7-5820K and Core i5-12450H are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-5820K and Core i5-12450H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4, DDR5
Maximum memory size	64 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	68 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel UHD Graphics Xe G4 48EUs ( - 1200 MHz)

Peripherals

Specifications and connection of peripherals supported by Core i7-5820K and Core i5-12450H.

PCIe version	3.0	4.0
PCI Express lanes	28	20

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.

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Pros & cons summary

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Performance score	6.20	10.67
Physical cores	6	8
Chip lithography	22 nm	10 nm
Power consumption (TDP)	140 Watt	45 Watt

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Should you still have questions on choice between Core i7-5820K and Core i5-12450H, ask them in Comments section, and we shall answer.

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