i9-9800X vs i9-10900X

Primary details

Comparing Core i9-10900X and Core i9-9800X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	511	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	8.11	no data
Architecture codename	Cascade Lake-X (2019)	Skylake-X (2018)
Release date	19 October 2019 (5 years ago)	October 2018 (6 years ago)

Detailed specifications

Core i9-10900X and Core i9-9800X 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	10 (Deca-Core)	8 (Octa-Core)
Threads	20	16
Base clock speed	3.7 GHz	no data
Boost clock speed	4.7 GHz	3.8 GHz
Bus rate	8 GT/s DMI3 MHz	no data
L1 cache	64K (per core)	64K (per core)
L2 cache	1 MB (per core)	1 MB (per core)
L3 cache	19.25 MB (shared)	16.5 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	94 °C	no data
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	+

Compatibility

Information on Core i9-10900X and Core i9-9800X 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	FCLGA2066	2066
Power consumption (TDP)	165 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-10900X and Core i9-9800X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Turbo Boost Max 3.0	+	no data
Deep Learning Boost	+	-

Security technologies

Core i9-10900X and Core i9-9800X technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-10900X and Core i9-9800X are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-10900X and Core i9-9800X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR4
Maximum memory size	256 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	94 GB/s	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-10900X and Core i9-9800X.

PCIe version	3.0	no data
PCI Express lanes	48	no data

Pros & cons summary

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Physical cores	10	8
Threads	20	16

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Should you still have questions on choice between Core i9-10900X and Core i9-9800X, ask them in Comments section, and we shall answer.

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