Mobile Pentium 4 520 vs Xeon 5120

Place in the ranking	2896	3295
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	no data	Mobile Pentium 4
Power efficiency	0.70	0.16
Architecture codename	Woodcrest (2006)	Northwood (2002−2004)
Release date	June 2006 (18 years ago)	no data (2024 years ago)
Launch price (MSRP)	$45	no data

Detailed specifications

Xeon 5120 and Mobile Pentium 4 520 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	2 (Dual-core)	1 (Single-Core)
Threads	2	1
Base clock speed	1.86 GHz	no data
Boost clock speed	1.87 GHz	2.8 GHz
Bus rate	no data	533 MHz
L1 cache	0 KB	no data
L2 cache	4 MB	no data
L3 cache	0 KB	no data
Chip lithography	65 nm	90 nm
Maximum core temperature	65 °C	no data
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	B2=1.0V-1.5V, G0=.85V-1.5V	no data

Compatibility

Information on Xeon 5120 and Mobile Pentium 4 520 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	1	no data
Socket	LGA771	no data
Power consumption (TDP)	65 Watt	91 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon 5120 and Mobile Pentium 4 520. You'll probably need this information if you require some particular technology.

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 5120 and Mobile Pentium 4 520 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 5120 and Mobile Pentium 4 520 are enumerated here.

VT-x	+	no data
EPT	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon 5120 and Mobile Pentium 4 520. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR2

no data

Gaming performance

Pros & cons summary

Performance score	0.48	0.15
Physical cores	2	1
Threads	2	1
Chip lithography	65 nm	90 nm
Power consumption (TDP)	65 Watt	91 Watt

Xeon 5120 has a 220% higher aggregate performance score, 100% more physical cores and 100% more threads, a 38.5% more advanced lithography process, and 40% lower power consumption.

The Xeon 5120 is our recommended choice as it beats the Mobile Pentium 4 520 in performance tests.

Be aware that Xeon 5120 is a server/workstation processor while Mobile Pentium 4 520 is a notebook one.

Should you still have questions on choice between Xeon 5120 and Mobile Pentium 4 520, ask them in Comments section, and we shall answer.