Xeon E-2378G vs i9-9940X

Primary details

Comparing Core i9-9940X and Xeon E-2378G processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	350	557
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.07	no data
Market segment	Desktop processor	Server
Series	Intel Core i9	no data
Power efficiency	10.10	15.75
Architecture codename	Skylake (server) (2017−2019)	Rocket Lake-E (2021)
Release date	8 October 2018 (6 years ago)	8 September 2021 (3 years ago)
Launch price (MSRP)	$1,387	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-9940X and Xeon E-2378G 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)	8 (Octa-Core)
Threads	28	16
Base clock speed	3.3 GHz	2.8 GHz
Boost clock speed	4.5 GHz	5.1 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	8 GT/s
Multiplier	33	no data
L1 cache	896 KB	64K (per core)
L2 cache	14 MB	512K (per core)
L3 cache	19.25 MB (shared)	16 MB (shared)
Chip lithography	14 nm	14 nm
Die size	484 mm2	no data
Maximum core temperature	88 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	+

Compatibility

Information on Core i9-9940X and Xeon E-2378G 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	FCLGA2066	FCLGA1200
Power consumption (TDP)	165 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9940X and Xeon E-2378G. 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	+	-
Idle States	no data	+
Thermal Monitoring	-	+
Turbo Boost Max 3.0	+	no data

Security technologies

Core i9-9940X and Xeon E-2378G technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Key	no data	+
MPX	-	+
SGX	no data	Yes with Intel® SPS
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9940X and Xeon E-2378G are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9940X and Xeon E-2378G. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-3200
Maximum memory size	128 GB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	85.33 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel UHD Graphics P750
Max video memory	no data	64 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.3 GHz
Execution Units	no data	32
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Core i9-9940X and Xeon E-2378G integrated GPUs.

Number of displays supported

no data

1

Graphics image quality

Maximum display resolutions supported by Core i9-9940X and Xeon E-2378G integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096 x 2160 @60 Hz
Max resolution over eDP	no data	5120 x 3200 @ 60 Hz
Max resolution over DisplayPort	no data	5120 x 3200 @ 60 Hz

Graphics API support

APIs supported by Core i9-9940X and Xeon E-2378G integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Core i9-9940X and Xeon E-2378G.

PCIe version	3.0	4.0
PCI Express lanes	44	44

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.

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Pros & cons summary

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Performance score	17.68	13.37
Recency	8 October 2018	8 September 2021
Physical cores	14	8
Threads	28	16
Power consumption (TDP)	165 Watt	80 Watt

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Should you still have questions on choice between Core i9-9940X and Xeon E-2378G, ask them in Comments section, and we shall answer.

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