Xeon E5335 vs E5420

Place in the ranking	2281	2476
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	1.51	1.15
Architecture codename	no data	Clovertown (2006−2007)
Release date	1 October 2007 (17 years ago)	14 November 2006 (18 years ago)

Detailed specifications

Xeon E5420 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	no data	4 (Quad-Core)
Threads	no data	4
Base clock speed	2.5 GHz	2 GHz
Boost clock speed	no data	2 GHz
L1 cache	no data	64 KB (per core)
L2 cache	no data	4 MB (per die)
L3 cache	12 MB L2 Cache	8 MB L2 Cache
Chip lithography	45 nm	65 nm
Die size	no data	2x 143 mm²
Maximum core temperature	67 °C	no data
Maximum case temperature (TCase)	no data	66 °C
Number of transistors	no data	582 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	0.85V-1.35V	1V-1.5V

Compatibility

Information on Xeon E5420 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	no data	2
Socket	LGA771	LGA771,PLGA771
Power consumption (TDP)	80 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5420 and Xeon E5335. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	+	-
FSB parity	+	+

Security technologies

Xeon E5420 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 E5420 and Xeon E5335 are enumerated here.

VT-x	+	+
EPT	-	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5420 and Xeon E5335. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR2, DDR3 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

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.

Xeon E5420 1.28
+30.6%

Xeon E5335 0.98

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Xeon E5420 2022
+30.5%

Xeon E5335 1549