Ryzen 5 5500U vs Core 2 Quad Q8400s

Primary details

Comparing Core 2 Quad Q8400s and Ryzen 5 5500U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	912
Place by popularity	not in top-100	14
Market segment	Desktop processor	Laptop
Series	no data	AMD Lucienne (Zen 2, Ryzen 5000)
Power efficiency	no data	51.67
Architecture codename	Yorkfield (2007−2009)	Lucienne-U (Zen 2) (2021)
Release date	19 April 2009 (15 years ago)	12 January 2021 (3 years ago)

Detailed specifications

Core 2 Quad Q8400s and Ryzen 5 5500U 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)	6 (Hexa-Core)
Threads	4	12
Base clock speed	2.66 GHz	2.1 GHz
Boost clock speed	0.67 GHz	4 GHz
Bus rate	1333 MHz	no data
Multiplier	no data	21
L1 cache	64 KB (per core)	384 KB
L2 cache	4 MB (shared)	3 MB
L3 cache	0 KB	8 MB (shared)
Chip lithography	45 nm	7 nm
Die size	2x 82 mm2	156 mm2
Maximum core temperature	no data	105 °C
Maximum case temperature (TCase)	76 °C	no data
Number of transistors	456 million	9,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q8400s and Ryzen 5 5500U 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	FCLGA775,LGA775	FP6
Power consumption (TDP)	65 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400s and Ryzen 5 5500U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, 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	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data

Security technologies

Core 2 Quad Q8400s and Ryzen 5 5500U 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 Q8400s and Ryzen 5 5500U are enumerated here.

AMD-V	-	+
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400s and Ryzen 5 5500U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4
Maximum memory size	no data	64 GB

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

AMD Radeon Vega 7

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8400s and Ryzen 5 5500U.

PCIe version	2.0	3.0
PCI Express lanes	no data	12

Pros & cons summary

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Recency	19 April 2009	12 January 2021
Physical cores	4	6
Threads	4	12
Chip lithography	45 nm	7 nm
Power consumption (TDP)	65 Watt	15 Watt

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Should you still have questions on choice between Core 2 Quad Q8400s and Ryzen 5 5500U, ask them in Comments section, and we shall answer.

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