Intel Core i9-10940X: specs and benchmarks

Summary

Intel started Intel Core i9-10940X sales 19 October 2019. Based on Cascade Lake-X architecture, this desktop processor is primarily aimed at home systems. It has 14 cores and 28 threads, and is based on 14 nm manufacturing technology, with a max turbo frequency of 4800 MHz and an unlocked multiplier.

Compatibility-wise, this is FCLGA2066 processor with a TDP of 165 Watt. It supports DDR4-2933 memory.

General info

Of Core i9-10940X processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance rating	116
Value for money	28.26
Market segment	Desktop processor
Architecture codename	Cascade Lake-X (2019)
Release date	19 October 2019 (2 years ago)
Price now	$833	of 14999 (Xeon Platinum 9282)

Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	14 (Tetradeca-Core)
Threads	28
Base clock speed	3.3 GHz	of 4.7 (FX-9590)
Boost clock speed	4.8 GHz	of 5.5 (Core i9-12900KS)
L1 cache	64K (per core)	of 1536 (EPYC Embedded 3401)
L2 cache	1 MB (per core)	of 12 (Core 2 Quad Q9550)
L3 cache	19.25 MB (shared)	of 32 (Ryzen Threadripper 1998)
Chip lithography	14 nm	of 5 (Apple M1)
Maximum core temperature	86 °C	of 110 (Atom x7-E3950)
64 bit support	+
Windows 11 compatibility	+
Unlocked multiplier	+

Compatibility

Information on Core i9-10940X compatibility with other computer components and devices: 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	of 8 (Opteron 842)
Socket	FCLGA2066
Thermal design power (TDP)	165 Watt	of 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core i9-10940X. 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
AES-NI	+
AVX	+
Enhanced SpeedStep (EIST)	+
Turbo Boost Technology	2.0
Hyper-Threading Technology	+
Turbo Boost Max 3.0	+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT	+
EDB	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d	+
VT-x	+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i9-10940X's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4-2933	of 4800 (Ryzen 9 6980HX)
Maximum memory size	256 GB	of 786 (Xeon E5-2670 v3)
Max memory channels	4	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	94 GB/s	of 281.6 (Xeon Platinum 9221)
ECC memory support	-

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0
PCI Express lanes	48	of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Core i9-10940X. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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Overall 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.

Relative perfomance

Overall Core i9-10940X performance compared to nearest competitors among desktop CPUs.

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