Xeon W-2191B vs Core i7-5820K

Primary details

Comparing Core i7-5820K and Xeon W-2191B processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1000	304
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.16	no data
Market segment	Desktop processor	Server
Series	no data	Intel Xeon W
Architecture codename	Haswell-E (2014)	Skylake (server) (2017−2019)
Release date	1 September 2014 (9 years ago)	21 December 2017 (6 years ago)
Launch price (MSRP)	$410	no data
Current price	$247 (0.6x MSRP)	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-5820K and Xeon W-2191B 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	6 (Hexa-Core)	18 (Octadeca-Core)
Threads	12	36
Base clock speed	3.3 GHz	2.3 GHz
Boost clock speed	3.6 GHz	4.3 GHz
Bus support	no data	4 × 8 GT/s
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	15 MB (shared)	24.75 MB (shared)
Chip lithography	22 nm	14 nm
Die size	356 mm2	484 mm2
Maximum core temperature	67 °C	no data
Maximum case temperature (TCase)	no data	66 °C
Number of transistors	2,600 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No

Compatibility

Information on Core i7-5820K and Xeon W-2191B 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 (Uniprocessor)
Socket	FCLGA2011	2066
Power consumption (TDP)	140 Watt	140 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-5820K and Xeon W-2191B. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	no data
Smart Response	+	no data
Demand Based Switching	-	no data
Status	Discontinued	no data

Security technologies

Core i7-5820K and Xeon W-2191B technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data
Identity Protection	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-5820K and Xeon W-2191B are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-5820K and Xeon W-2191B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4-2666
Maximum memory size	64 GB	512 GB
Max memory channels	4	4
Maximum memory bandwidth	68 GB/s	85.33 GB/s
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core i7-5820K and Xeon W-2191B.

PCIe version	3.0	3.0
PCI Express lanes	28	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.

Xeon W-2191B outperforms Core i7-5820K by 188% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	6.36	18.30
Recency	1 September 2014	21 December 2017
Physical cores	6	18
Threads	12	36
Chip lithography	22 nm	14 nm

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Should you still have questions on choice between Core i7-5820K and Xeon W-2191B, ask them in Comments section, and we shall answer.

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