Ryzen 7 7840HS vs i7-875K

Primary details

Comparing Core i7-875K and Ryzen 7 7840HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1937	328
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.08	no data
Market segment	Desktop processor	Laptop
Power efficiency	1.95	49.21
Architecture codename	Lynnfield (2009−2010)	Phoenix-HS (Zen 4) (2023)
Release date	30 May 2010 (14 years ago)	January 2023 (1 year ago)
Launch price (MSRP)	$486	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-875K and Ryzen 7 7840HS 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	4 (Quad-Core)	8 (Octa-Core)
Threads	8	16
Base clock speed	2.93 GHz	3.8 GHz
Boost clock speed	3.6 GHz	5.1 GHz
Bus rate	2.5 GT/s	no data
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	8 MB (shared)	16 MB (shared)
Chip lithography	45 nm	4 nm
Die size	296 mm2	178 mm2
Maximum core temperature	73 °C	100 °C
Number of transistors	774 million	25,000 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	-

Compatibility

Information on Core i7-875K and Ryzen 7 7840HS 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	FCLGA1156,LGA1156	FP8
Power consumption (TDP)	95 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-875K and Ryzen 7 7840HS. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Ryzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	-	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data
Precision Boost 2	no data	+

Security technologies

Core i7-875K and Ryzen 7 7840HS technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-875K and Ryzen 7 7840HS are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-875K and Ryzen 7 7840HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5
Maximum memory size	16 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon 780M

Peripherals

Specifications and connection of peripherals supported by Core i7-875K and Ryzen 7 7840HS.

PCIe version	2.0	4.0
PCI Express lanes	16	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	2.03	18.89
Physical cores	4	8
Threads	8	16
Chip lithography	45 nm	4 nm
Power consumption (TDP)	95 Watt	35 Watt

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Should you still have questions on choice between Core i7-875K and Ryzen 7 7840HS, ask them in Comments section, and we shall answer.

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