Ryzen 7 7840HS vs Core 2 Quad Q9400

Primary details

Comparing Core 2 Quad Q9400 and Ryzen 7 7840HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2143	287
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.51	no data
Market segment	Desktop processor	Laptop
Architecture codename	Yorkfield (2007−2009)	Phoenix-HS (Zen 4)
Release date	August 2008 (15 years ago)	January 2023 (1 year ago)
Current price	$73	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Quad Q9400 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	4	16
Base clock speed	2.66 GHz	3.8 GHz
Boost clock speed	2.67 GHz	5.1 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	6 MB (shared)	1 MB (per core)
L3 cache	0 KB	16 MB (shared)
Chip lithography	45 nm	4 nm
Die size	2x 81 mm2	178 mm2
Maximum core temperature	71 °C	100 °C
Maximum case temperature (TCase)	71 °C	no data
Number of transistors	456 million	25,000 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q9400 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	LGA775	FP8
Power consumption (TDP)	95 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Ryzen 7 7840HS. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	DDR5-5600/LPDDR5x-7500 RAM (incl. ECC), PCIe 4, 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	no data	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Core 2 Quad Q9400 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 2 Quad Q9400 and Ryzen 7 7840HS are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400 and Ryzen 7 7840HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

DDR5

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 2 Quad Q9400 and Ryzen 7 7840HS.

PCIe version	no data	4.0
PCI Express lanes	no data	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.

Ryzen 7 7840HS outperforms Core 2 Quad Q9400 by 1267% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.37	18.73
Physical cores	4	8
Threads	4	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 2 Quad Q9400 and Ryzen 7 7840HS, ask them in Comments section, and we shall answer.

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