Xeon E5-2665 vs W-2125

Primary details

Comparing Xeon W-2125 and Xeon E5-2665 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	965	1082
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.84	1.03
Market segment	Server	Server
Series	Intel Xeon W	no data
Architecture codename	Skylake (server) (2017−2019)	Sandy Bridge-EP (2012)
Release date	29 August 2017 (6 years ago)	6 March 2012 (12 years ago)
Launch price (MSRP)	$444	$142
Current price	$500 (1.1x MSRP)	$99 (0.7x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon W-2125 has 467% better value for money than Xeon E5-2665.

Detailed specifications

Xeon W-2125 and Xeon E5-2665 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)	8 (Octa-Core)
Threads	8	16
Base clock speed	4 GHz	2.4 GHz
Boost clock speed	4.5 GHz	3.1 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	1 MB (per core)	256 KB (per core)
L3 cache	8.25 MB (shared)	20480 KB (shared)
Chip lithography	14 nm	32 nm
Die size	484 mm2	435 mm2
Maximum core temperature	64 °C	82 °C
Maximum case temperature (TCase)	64 °C	no data
Number of transistors	no data	2,270 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon W-2125 and Xeon E5-2665 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	2
Socket	FCLGA2066	FCLGA2011
Power consumption (TDP)	120 Watt	115 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2125 and Xeon E5-2665. 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	Intel® AVX
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	no data
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	-
Demand Based Switching	+	+
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	no data
Status	Discontinued	Discontinued

Security technologies

Xeon W-2125 and Xeon E5-2665 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2125 and Xeon E5-2665 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-2125 and Xeon E5-2665. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666	DDR3
Maximum memory size	512 GB	384 GB
Max memory channels	4	4
Maximum memory bandwidth	85.3 GB/s	51.2 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon W-2125 and Xeon E5-2665.

PCIe version	3.0	3.0
PCI Express lanes	48	40

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-2125 outperforms E5-2665 by 21% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	6.46	5.36
Recency	29 August 2017	6 March 2012
Physical cores	4	8
Threads	8	16
Cost	$444	$142
Chip lithography	14 nm	32 nm
Power consumption (TDP)	120 Watt	115 Watt

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Should you still have questions on choice between Xeon W-2125 and Xeon E5-2665, ask them in Comments section, and we shall answer.

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