Xeon E5645 vs W-2102

Primary Details

Comparing Xeon W-2102 and Xeon E5645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1484	1487
Place by popularity	not in top-100	not in top-100
Cost-Effectiveness Evaluation	9.12	0.99
Market segment	Server	Server
Series	Intel Xeon W	no data
Architecture codename	Skylake (server) (2017−2019)	Westmere-EP (2010−2011)
Release date	29 August 2017 (6 years ago)	16 March 2010 (14 years ago)
Launch price (MSRP)	$202	$294
Current price	$89 (0.4x MSRP)	$84 (0.3x MSRP)

Cost-Effectiveness Evaluation

Performance per price, higher is better.

Xeon W-2102 has 821% better value for money than Xeon E5645.

Detailed Specifications

Xeon W-2102 and Xeon E5645 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)	6 (Hexa-Core)
Threads	4	12
Base clock speed	2.9 GHz	2.4 GHz
Boost clock speed	2.9 GHz	2.67 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)	12 MB (shared)
Chip lithography	14 nm	32 nm
Die size	484 mm2	239 mm2
Maximum core temperature	66 °C	76 °C
Maximum case temperature (TCase)	66 °C	no data
Number of transistors	no data	1,170 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon W-2102 and Xeon E5645 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	FCLGA1366,LGA1366
Power consumption (TDP)	120 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2102 and Xeon E5645. 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® SSE4.2
AES-NI	+	+
AVX	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	-	1.0
Hyper-Threading Technology	-	+
TSX	+	no data
Idle States	+	+
Thermal Monitoring	+	-
Flex Memory Access	-	no data
Demand Based Switching	+	+
PAE	46 Bit	40 Bit
Turbo Boost Max 3.0	-	no data
Status	Launched	Discontinued

Security technologies

Xeon W-2102 and Xeon E5645 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
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-2102 and Xeon E5645 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-2102 and Xeon E5645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400	DDR3
Maximum memory size	512 GB	288 GB
Max memory channels	4	3
Maximum memory bandwidth	76.8 GB/s	32 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon W-2102 and Xeon E5645.

PCIe version	3.0	2.0
PCI Express lanes	48	no data

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-2102 outperforms E5645 by 1% based on our aggregated benchmark results.

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Pros & Cons Summary

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Performance score	3.23	3.21
Recency	29 August 2017	16 March 2010
Physical cores	4	6
Threads	4	12
Cost	$202	$294
Chip lithography	14 nm	32 nm
Power consumption (TDP)	120 Watt	80 Watt

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Should you still have questions on choice between Xeon W-2102 and Xeon E5645, ask them in Comments section, and we shall answer.

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