Xeon E5-2420 vs W-2135

Primary details

Comparing Xeon W-2135 and Xeon E5-2420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	836	1605
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	6.94	0.94
Market segment	Server	Server
Series	Intel Xeon W	no data
Power efficiency	6.15	3.16
Architecture codename	Skylake (server) (2017−2019)	Sandy Bridge-EN (2012)
Release date	29 August 2017 (7 years ago)	14 May 2012 (12 years ago)
Launch price (MSRP)	$835	$390

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon W-2135 has 638% better value for money than Xeon E5-2420.

Detailed specifications

Xeon W-2135 and Xeon E5-2420 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)	6 (Hexa-Core)
Threads	12	12
Base clock speed	3.7 GHz	1.9 GHz
Boost clock speed	4.5 GHz	2.4 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	7.2 GT/s
Multiplier	37	no data
L1 cache	384 KB	64 KB (per core)
L2 cache	6 MB	256 KB (per core)
L3 cache	8.25 MB (shared)	15360 KB (shared)
Chip lithography	14 nm	32 nm
Die size	484 mm2	294 mm2
Maximum case temperature (TCase)	64 °C	no data
Number of transistors	no data	1,270 million
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Xeon W-2135 and Xeon E5-2420 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)	2
Socket	FCLGA2066	FCLGA1356
Power consumption (TDP)	140 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2135 and Xeon E5-2420. 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	1.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	-
Demand Based Switching	+	+
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	no data

Security technologies

Xeon W-2135 and Xeon E5-2420 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2135 and Xeon E5-2420 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-2135 and Xeon E5-2420. 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	3
Maximum memory bandwidth	85.33 GB/s	32 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon W-2135 and Xeon E5-2420.

PCIe version	3.0	3.0
PCI Express lanes	48	24

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

---

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.

---

Pros & cons summary

---

Performance score	9.10	3.17
Recency	29 August 2017	14 May 2012
Chip lithography	14 nm	32 nm
Power consumption (TDP)	140 Watt	95 Watt

---

Should you still have questions on choice between Xeon W-2135 and Xeon E5-2420, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---