Xeon E5606 vs E5-2403

Primary details

Comparing Xeon E5-2403 and Xeon E5606 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2161	2162
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.36	0.43
Market segment	Server	Server
Power efficiency	1.76	1.76
Architecture codename	Sandy Bridge-EN (2012)	Westmere-EP (2010−2011)
Release date	14 May 2012 (12 years ago)	14 February 2011 (13 years ago)
Launch price (MSRP)	$230	$46

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5606 has 19% better value for money than Xeon E5-2403.

Detailed specifications

Xeon E5-2403 and Xeon E5606 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)	4 (Quad-Core)
Threads	4	4
Base clock speed	1.8 GHz	2.13 GHz
Boost clock speed	1.8 GHz	0.13 GHz
Bus rate	6.4 GT/s	no data
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	10240 KB (shared)	8 MB (shared)
Chip lithography	32 nm	32 nm
Die size	294 mm2	239 mm2
Number of transistors	1,270 million	1,170 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E5-2403 and Xeon E5606 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	2	2
Socket	FCLGA1356	FCLGA1366,LGA1366
Power consumption (TDP)	80 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2403 and Xeon E5606. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.2
AES-NI	+	+
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	-
Flex Memory Access	-	no data
Demand Based Switching	+	+
PAE	no data	40 Bit

Security technologies

Xeon E5-2403 and Xeon E5606 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2403 and Xeon E5606 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2403 and Xeon E5606. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	384 GB	288 GB
Max memory channels	3	3
Maximum memory bandwidth	25 GB/s	25.6 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2403 and Xeon E5606.

PCIe version	3.0	2.0
PCI Express lanes	24	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.

---

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

---

Recency

14 May 2012

14 February 2011

---

Should you still have questions on choice between Xeon E5-2403 and Xeon E5606, 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.

---