Core i9-10900X vs Core i9-9920X

General info

Comparing Core i9-9920X and Core i9-10900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	360	441
Place by popularity	not in top-100	not in top-100
Value for money	15.56	15.38
Market segment	Desktop processor	Desktop processor
Series	Intel Core i9	no data
Architecture codename	Skylake (server) (2017−2019)	Cascade Lake-X (2019)
Release date	8 October 2018 (5 years old)	19 October 2019 (4 years old)
Launch price (MSRP)	$1,189	no data
Current price	$567 (0.5x MSRP)	$600

Value for money

Performance per price, higher is better.

i9-9920X has 1% better value for money than i9-10900X.

Technical specs

Core i9-9920X and Core i9-10900X 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	12 (Dodeca-Core)	10 (Deca-Core)
Threads	24	20
Base clock speed	3.5 GHz	3.7 GHz
Boost clock speed	4.5 GHz	4.7 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	768 KB	64K (per core)
L2 cache	12 MB	1 MB (per core)
L3 cache	19.25 MB (shared)	19.25 MB (shared)
Chip lithography	14 nm	14 nm
Die size	484 mm2	no data
Maximum core temperature	92 °C	94 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	Yes	Yes

Compatibility

Information on Core i9-9920X and Core i9-10900X 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	FCLGA2066
Power consumption (TDP)	165 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9920X and Core i9-10900X. 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	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Turbo Boost Max 3.0	+	+
Status	Discontinued	Launched

Security technologies

Core i9-9920X and Core i9-10900X technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9920X and Core i9-10900X are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9920X and Core i9-10900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-2933
Maximum memory size	128 GB	256 GB
Max memory channels	4	4
Maximum memory bandwidth	85 GB/s	94 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i9-9920X and Core i9-10900X.

PCIe version	3.0	3.0
PCI Express lanes	44	48

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.

Core i9-9920X outperforms Core i9-10900X by 12% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	16.31	14.54
Recency	8 October 2018	19 October 2019
Physical cores	12	10
Threads	24	20

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Should you still have questions on choice between Core i9-9920X and Core i9-10900X, ask them in Comments section, and we shall answer.

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