Xeon E5335 vs E5520

Primary details

Comparing Xeon E5520 and Xeon E5335 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2094	2476
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.58	no data
Market segment	Server	Server
Power efficiency	1.88	1.15
Architecture codename	Gainestown (2009−2010)	Clovertown (2006−2007)
Release date	30 March 2009 (15 years ago)	14 November 2006 (18 years ago)
Launch price (MSRP)	$19	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5520 and Xeon E5335 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	8	4
Base clock speed	2.26 GHz	2 GHz
Boost clock speed	2.53 GHz	2 GHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	4 MB (per die)
L3 cache	8 MB (shared)	8 MB L2 Cache
Chip lithography	45 nm	65 nm
Die size	263 mm2	2x 143 mm2
Maximum core temperature	72 °C	no data
Maximum case temperature (TCase)	no data	66 °C
Number of transistors	731 million	582 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	no data	1V-1.5V

Compatibility

Information on Xeon E5520 and Xeon E5335 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	LGA771,PLGA771
Power consumption (TDP)	80 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5520 and Xeon E5335. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	+	-
PAE	40 Bit	no data
FSB parity	no data	+

Security technologies

Xeon E5520 and Xeon E5335 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5520 and Xeon E5335 are enumerated here.

VT-d	+	no data
VT-x	+	+
EPT	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5520 and Xeon E5335. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR2, DDR3 Depends on motherboard
Maximum memory size	144 GB	no data
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E5520 and Xeon E5335.

PCIe version

2.0

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

---

Performance score	1.60	0.98
Recency	30 March 2009	14 November 2006
Threads	8	4
Chip lithography	45 nm	65 nm

---

Should you still have questions on choice between Xeon E5520 and Xeon E5335, 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.

---