i9-10940XE vs i9-9990XE

Primary details

Comparing Core i9-9990XE and Core i9-10940XE processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	305	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.84	no data
Market segment	Desktop processor	Desktop processor
Series	Intel Core i9	no data
Power efficiency	7.05	no data
Architecture codename	Skylake (server) (2017−2018)	Cascade Lake-X (2019)
Release date	19 October 2018 (6 years ago)	19 October 2019 (5 years ago)
Launch price (MSRP)	$2,800	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-9990XE and Core i9-10940XE 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	14 (Tetradeca-Core)	14 (Tetradeca-Core)
Threads	28	28
Base clock speed	4 GHz	3.3 GHz
Boost clock speed	5.1 GHz	4.8 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	40	no data
L1 cache	64 KB (per core)	64K (per core)
L2 cache	1 MB (per core)	1 MB (per core)
L3 cache	19.25 MB (shared)	19.25 MB (shared)
Chip lithography	14 nm	14 nm
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	+

Compatibility

Information on Core i9-9990XE and Core i9-10940XE 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 (Uniprocessor)	1
Socket	2066	2066
Power consumption (TDP)	255 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9990XE and Core i9-10940XE. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
TSX	+	+

Security technologies

Core i9-9990XE and Core i9-10940XE technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9990XE and Core i9-10940XE are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9990XE and Core i9-10940XE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Quad-channel	DDR4 Quad-channel
Maximum memory size	128 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	85.33 GB/s	no data

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 i9-9990XE and Core i9-10940XE.

PCIe version	3.0	3.0
PCI Express lanes	44	no data

Pros & cons summary

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Recency	19 October 2018	19 October 2019
Power consumption (TDP)	255 Watt	165 Watt

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