Xeon W-2191B vs W-2104

Primary details

Comparing Xeon W-2104 and Xeon W-2191B processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1422	299
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	6.79	no data
Market segment	Server	Server
Series	Intel Xeon W	Intel Xeon W
Architecture codename	Skylake (server) (2017−2019)	Skylake (server) (2017−2019)
Release date	29 August 2017 (6 years ago)	21 December 2017 (6 years ago)
Launch price (MSRP)	$255	no data
Current price	$196 (0.8x MSRP)	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon W-2104 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	4 (Quad-Core)	18 (Octadeca-Core)
Threads	4	36
Base clock speed	3.2 GHz	2.3 GHz
Boost clock speed	3.2 GHz	4.3 GHz
Bus support	4 × 8 GT/s	4 × 8 GT/s
L1 cache	64K (per core)	64K (per core)
L2 cache	1 MB (per core)	1 MB (per core)
L3 cache	8.25 MB (shared)	24.75 MB (shared)
Chip lithography	14 nm	14 nm
Die size	484 mm2	484 mm2
Maximum core temperature	66 °C	no data
Maximum case temperature (TCase)	66 °C	66 °C
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon W-2104 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	FCLGA2066	2066
Power consumption (TDP)	120 Watt	140 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2104 and Xeon W-2191B. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	no data
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	no data
Status	Launched	no data

Security technologies

Xeon W-2104 and Xeon W-2191B technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data
Secure Key	+	no data
MPX	+	no data
Identity Protection	+	no data
SGX	-	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2104 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 Xeon W-2104 and Xeon W-2191B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400	DDR4-2666
Maximum memory size	512 GB	512 GB
Max memory channels	4	4
Maximum memory bandwidth	76.8 GB/s	85.33 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon W-2104 and Xeon W-2191B.

PCIe version	3.0	3.0
PCI Express lanes	48	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.

W-2191B outperforms W-2104 by 403% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	3.65	18.36
Recency	29 August 2017	21 December 2017
Physical cores	4	18
Threads	4	36
Power consumption (TDP)	120 Watt	140 Watt

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Should you still have questions on choice between Xeon W-2104 and Xeon W-2191B, ask them in Comments section, and we shall answer.

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