Ryzen 7 5800X vs Pentium 4 HT 660

Primary details

Comparing Pentium 4 HT 660 and Ryzen 7 5800X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	361
Place by popularity	not in top-100	49
Cost-effectiveness evaluation	no data	24.47
Market segment	Desktop processor	Desktop processor
Series	no data	AMD Ryzen 7
Power efficiency	no data	15.78
Architecture codename	Prescott (2001−2005)	Vermeer (Zen 3) (2020−2022)
Release date	February 2005 (19 years ago)	5 November 2020 (4 years ago)
Launch price (MSRP)	no data	$449

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium 4 HT 660 and Ryzen 7 5800X 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	1 (Single-Core)	8 (Octa-Core)
Threads	2	16
Base clock speed	no data	3.8 GHz
Boost clock speed	3.6 GHz	4.7 GHz
Multiplier	no data	38
L1 cache	28 KB	64K (per core)
L2 cache	2 MB	512K (per core)
L3 cache	0 KB	32 MB
Chip lithography	90 nm	7 nm, 12 nm
Die size	109 mm2	2 x 80.7 sq. mm; I/O = 125 mm2
Maximum core temperature	no data	90 °C
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	169 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Pentium 4 HT 660 and Ryzen 7 5800X 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	775	AM4
Power consumption (TDP)	84 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 4 HT 660 and Ryzen 7 5800X. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA
AES-NI	-	+
AVX	-	+
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 4 HT 660 and Ryzen 7 5800X are enumerated here.

AMD-V

-

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 4 HT 660 and Ryzen 7 5800X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4
Maximum memory size	no data	128 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	51.196 GB/s

Peripherals

Specifications and connection of peripherals supported by Pentium 4 HT 660 and Ryzen 7 5800X.

PCIe version

no data

4.0

Pros & cons summary

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Physical cores	1	8
Threads	2	16
Chip lithography	90 nm	7 nm
Power consumption (TDP)	84 Watt	105 Watt

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Should you still have questions on choice between Pentium 4 HT 660 and Ryzen 7 5800X, ask them in Comments section, and we shall answer.

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