Phenom II X2 N640 vs Xeon L5420

Place in the ranking	2240	2526
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	no data	2x AMD Phenom II
Power efficiency	2.56	2.43
Architecture codename	no data	Champlain (2010−2011)
Release date	1 January 2008 (16 years ago)	1 October 2010 (14 years ago)

Detailed specifications

Xeon L5420 and Phenom II X2 N640 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	2 (Dual-core)
Threads	no data	2
Base clock speed	2.5 GHz	no data
Boost clock speed	no data	2.9 GHz
Bus rate	no data	3600 MHz
L1 cache	no data	256 KB
L2 cache	no data	2 MB
L3 cache	12 MB L2 Cache	no data
Chip lithography	45 nm	45 nm
Maximum core temperature	57 °C	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon L5420 and Phenom II X2 N640 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	S1
Power consumption (TDP)	50 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5420 and Phenom II X2 N640. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	HyperTransport 3.0, SSE4A, AMD64, Enhanced Virus Protection, Vurtualization
VirusProtect	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data

Security technologies

Xeon L5420 and Phenom II X2 N640 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon L5420 and Phenom II X2 N640 are enumerated here.

VT-x	+	no data
EPT	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon L5420 and Phenom II X2 N640. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR3

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 L5420 1.35
+50%

Phenom II X2 N640 0.90

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 L5420 332

Phenom II X2 N640 342
+3%

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 L5420 917
+47.2%

Phenom II X2 N640 623