Xeon E5-2637 vs X5550

General info

Comparing Xeon X5550 and Xeon E5-2637 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1824	1838
Place by popularity	not in top-100	not in top-100
Value for money	30.53	0.14
Market segment	Server	Server
Architecture codename	Gainestown (2009−2010)	Sandy Bridge-EP (2012)
Release date	March 2009 (15 years old)	6 March 2012 (12 years old)
Launch price (MSRP)	$62	no data
Current price	$545 (8.8x MSRP)	$518

Xeon X5550 has 21707% better value for money than Xeon E5-2637.

Technical specs

Xeon X5550 and Xeon E5-2637 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)	2 (Dual-core)
Threads	8	4
Base clock speed	2.66 GHz	3 GHz
Boost clock speed	3.06 GHz	3.5 GHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8 MB (shared)	5120 KB (shared)
Chip lithography	45 nm	32 nm
Die size	263 mm2	294 mm2
Maximum core temperature	75 °C	70 °C
Number of transistors	731 million	1,270 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon X5550 and Xeon E5-2637 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	FCLGA1366,PLGA1366	FCLGA2011
Power consumption (TDP)	95 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X5550 and Xeon E5-2637. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® AVX
AES-NI	no data	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	2.0
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	no data	+
Flex Memory Access	no data	-
Demand Based Switching	+	+
PAE	40 Bit	no data
Status	Discontinued	Discontinued

Security technologies

Xeon X5550 and Xeon E5-2637 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Identity Protection	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X5550 and Xeon E5-2637 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X5550 and Xeon E5-2637. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	144 GB	384 GB
Max memory channels	3	4
Maximum memory bandwidth	32 GB/s	51.2 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon X5550 and Xeon E5-2637.

PCIe version	no data	3.0
PCI Express lanes	no data	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.

X5550 outperforms E5-2637 by 2% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	1.98	1.94
Physical cores	4	2
Threads	8	4
Chip lithography	45 nm	32 nm
Power consumption (TDP)	95 Watt	80 Watt

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Should you still have questions on choice between Xeon X5550 and Xeon E5-2637, ask them in Comments section, and we shall answer.

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