Xeon w7-2555X vs i9-7940X

Primary details

Comparing Core i9-7940X and Xeon w7-2555X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	390	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.56	no data
Market segment	Desktop processor	Server
Series	Intel Core i9	no data
Power efficiency	9.40	no data
Architecture codename	Skylake (server) (2017−2019)	Sapphire Rapids (2023−2024)
Release date	1 September 2017 (7 years ago)	24 August 2024 (less than a year ago)
Launch price (MSRP)	$1,399	$1,069

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-7940X and Xeon w7-2555X 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	3.1 GHz	3.3 GHz
Boost clock speed	4.4 GHz	4.8 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
L1 cache	64 KB (per core)	80 KB (per core)
L2 cache	1 MB (per core)	2 MB (per core)
L3 cache	19.25 MB (shared)	33.75 MB
Chip lithography	14 nm	10 nm
Die size	484 mm2	no data
Maximum core temperature	102 °C	no data
Maximum case temperature (TCase)	no data	75 °C
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	+

Compatibility

Information on Core i9-7940X and Xeon w7-2555X 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	4677
Power consumption (TDP)	165 Watt	210 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-7940X and Xeon w7-2555X. 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	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Turbo Boost Max 3.0	+	no data

Security technologies

Core i9-7940X and Xeon w7-2555X technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-7940X and Xeon w7-2555X are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-7940X and Xeon w7-2555X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR5
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

N/A

Peripherals

Specifications and connection of peripherals supported by Core i9-7940X and Xeon w7-2555X.

PCIe version	3.0	5.0
PCI Express lanes	44	64

Pros & cons summary

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Recency	1 September 2017	24 August 2024
Chip lithography	14 nm	10 nm
Power consumption (TDP)	165 Watt	210 Watt

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Should you still have questions on choice between Core i9-7940X and Xeon w7-2555X, ask them in Comments section, and we shall answer.

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