Xeon E5405 vs E5420

Place in the ranking	2281	2404
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	1.50	1.28
Release date	1 October 2007 (17 years ago)	1 October 2007 (17 years ago)

Detailed specifications

Xeon E5420 and Xeon E5405 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.

Base clock speed	2.5 GHz	2 GHz
L3 cache	12 MB L2 Cache	12 MB L2 Cache
Chip lithography	45 nm	45 nm
Maximum core temperature	67 °C	67 °C
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.35V	0.85V-1.35V

Compatibility

Information on Xeon E5420 and Xeon E5405 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.

Socket	LGA771	LGA771
Power consumption (TDP)	80 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5420 and Xeon E5405. 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 E5405 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 E5405 are enumerated here.

VT-x	+	+
EPT	-	-

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 1.27
+17.6%

Xeon E5405 1.08

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
+17.7%

Xeon E5405 1718

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Xeon E5420 368
+21.9%

Xeon E5405 302

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Xeon E5420 1197
+14%

Xeon E5405 1050